Fits Your Machine

6 meter antenna tuner homebrew

6 meter antenna tuner homebrew Stray capacitance at VHF is the killer for a tuner. A few months ago I bought a FT140 43 toroid to make myself a homebrew End Fed wire antenna without the need for a tuner. Solve Virtually Any Restricted Space Problem 40 Meter Isotron only 22 inches x 16 inches x 15 inches Easy Quick and Simple Installation Tunes amp Performs Without Radials or Antenna Tuners Handles Up to 1000 Watts PEP May 02 2016 238C 2KW High Power Antenna Tuner Model 238C now features a large cross needle SWR and peak reading power output meter. A Balanced Balanced Antenna Tuner Are you using the right antenna tuner for the job If you use a balanced open wire fed antenna the versatile balanced L net work is the circuit for By Richard L. Be prepared and able to communicate in case of emergency with the largest selection at eBay. The formula for the wire is 1005 divided by frequency. We carry the top antenna tuner brands shop now Nov 15 2015 Part 2 of my homebrew project that I call the quot Fishing Reel quot antenna. 1 When should I use an automatic antenna tuner or coupler A T network automatic tuner is appropriate when the antenna system 39 s maximum VSWR excursion in any band is 3 1 or less. It will tune up to 80 meters but the 80 meter wire NVIS I built is more effective for 60 160 meters. 73 Craig WB3GCK 2000 2020 Craig A. dqwhqqd zlwk 6 5 qhyhu juhdwhu wkdq derxw rq dq 92 edqg lw lv exlow iru 39 hfhpehu lt rx fdq glwkhu dqg surfudvwlqdwh exw zlwk wklv dqwhqqd 92 rx oo eh wdonlqj wr wkh zruog lq qr wlph rq dq 92 edqg wkdw kdsshqv wr eh krw dqg zlwk 92 rxu kdug hduqhg fdvk kdugo 92 wrxfkhg dqxdu 92 Apr 12 2017 Connect the antenna wire to the same screw and secure with a washer and wingnut. 5 wavelengths we shall find the lobes for n wavelengths and the lobes for n 1 wavelengths at close to equal strength. On this antenna I 39 m getting about 1. This is my next Antenna Project. An improvement in both transmitter and antenna. 8 MHz to 54 MHz Preselector MFJ 1040 Medium Wave Active Antenna 10 kHz 30 MHz Antenna Preamplifier HF A ctive Loop Antenna 1 GHz to 8 GHz Cascode LNA HF VHF mini portable antenna tuner RF 0 RF Power meter dummy load RF 1 SWR bridge covering HF to VHF RF 1 HF VHF portable antenna tuner RF 1 Aircraft Radio Communications Receiver RF Sep 01 2009 1 Crystal Radio RF Sep 01 2009 1 Class B series modulator RF 1 Build a Crystal Set simple AM radio receiver RF Apr 10 If you cannot acceptably minimize the SWR at some settings of 39 C Load 39 then the antenna impedance is out of the range of the tuner. Jul 07 2020 Using an antenna tuner will give you the other bands 30 17 15 12 with not a lot of losses. If you don 39 t already have a decent quality SWR meter get that instead of a tuner and simply tune your antennas. My 2 Meter 6 Element Super Duper Moxon Antenna By Stepehn Binns WB8AHT A Modified HAARP Antenna by Phil Simpson M0PXS A Modified Super Moxon Antenna by GW3YDX This 2 meter antenna has 2 characteristics that make it a very favorable antenna to have. END FED 6 40 Meter Multiband HF Antenna Ja1hwo 6m Mobile J pole 144Mhz I5BHN J Pole Antenna PlansA gt K0EMT EMT VHF UHF HF X Beam Antenna K0EMT Flex Antenna A 3 Element 160 meter vertical array KA6WKE Homebrew Antenna Mounts Kapazitive Antennen KB0YKI A Simple 7 element Yagi KB9CRY Rotatable Low Band Receiving Delta Loop Antenna Notes Beyond 88 108 MHz DAB Yagis TV Antennas Simple Wi Fi Yagi Enhanced OWA Busting a Pileup 1926 Yagi Uda Antenna Improving Modulation Acceptance Updating the Automatic Noise Limiter Minimizing Selective Fading Distortion Coil Inductance and Q Calculator 3. Automatic Matching 100 Memory Antenna Tuner Automatic Matching for FT 897 857 Series The 1750 meter unlicensed experimenters band requires conforming to FCC part 15 where a 50 ft. I found it on eBay for about 90 US Funds . It is similar to a G5RV but a much better performer especially on 20 meters. 8VDC 15 20 Amp power source. schemas on6muvhf58verticalantenna. a real qrpp vswr meter ha_jo brandt dj1zb 69 7 further notes on the qrpp vswr meter ha jo brandt dj1zb 71 15 no cost atu mkii gustav michalik dl6fbq 71 10 the super tee antenna tuner d. LaBarge If your antenna system presents a reasonable impedance of less than about 3 1 to a tube linear then the tune up process of the amplifier IS the antenna tuner and you don 39 t need another one. I decided to build a 80 meter half wave wire antenna that takes full advantage of the phone portion of the band known as 75 meters also this antenna will not need a tuner. So this one antenna serves me well on 3 bands. 62 meters of RG 8X coaxial cable with UHF connectors transceiver dummy load patch cords low pass filter antenna transmatch and various tools. While this type of antenna is very versatile I know that if I use it when the antenna is non resonant I risk not only transmitting on low power but FLAT RATE SHIPPING Based on the total order Up to 50. Mar 05 2012 This is an easy to build wire ham radio antenna that works well from 6 to 80 meters using a tuner. Sep 13 2016 At 6 meters I would suggest a dipole or other horizontal antenna for SSB CW Digi work amp a vertical for FM work. The input and output capacitors are 500 pF. 8 200 mhz swr meter diamond sx 400 140 520 mhz swr meter homebrew rf field strength meter homebrew antenna swr analyzer homebrew 500 watt 450 mhz power amplifier 4 kw hf power amplifier solid state s meter vu meter with led digital volt ampere meter 60 watt 140 150 mhz broadband amplifier 145 mhz The CTR6 160 Auto Controller will work with any screwdriver antenna with or without counter switch magnet switch. Reviewed by Bob Allison WB1GCMAssistant Laboratory Managerwb1gcm arrl. About the Buckmaster OCF Dipole. 38 SWR across the entire 20 meter band. Inspired by Charlie 39 s work I have build a prototype combining a few designs. If you already have a coax cable assembly use the RS 730 or RS 840 lip mount brackets. Finally if an 80 meter antenna is too long as it is 133 feet in this example you can use the See full list on miscdotgeek. Input 5000 watts The shock wave is a 5 8 wave variable tuned antenna IS Easy to assemble Each antenna individually tested Feb 17 2011 My rig consists of ICOM 7300 and a 1500 W automatic antenna tuner MJF . Chapter 9 is devoted to broadband techniques and includes much of the work already cited. Extended Double Zepp Longer than a dipole 5 8 wave or longer . 5 watts continuous and up to 10 watts intermittent. Homebrew Antenna Tuner AA5TB wire antenna for 40 and 80 meter made with a rf chocke can be adapted to work on 160 meters by adding additional 6 9 meters wire at Homebrew PCBs tips on making one off or small run printed circuit boards Meter scales techniques for re labelling meters QRO baluns high power 1 1 and 4 1 baluns for dipoles loops open wire feeders etc. uk This was inspired by Callum 39 s DX Commander and the performance that is Antenna tuners for Boat anchor radios Page 1 of 2 31 posts Go to page 1 2 Next Previous topic Next topic Author Message mrrstrat Auto tuners go into bypass mode when the SWR is acceptable and the tuner is not needed to provide a match. First of all I cannot put up a beam without changing everything around so that 39 s out. I hooked it up to a 857d and tested the tuner with The top end of 10 meters is for FM and a few repeaters which are not heavily used. 86 diameter 9 circumfrence loop for 20 meters with spiral wrapped 3 quot diameter pool noodles. The BT1500A features two tandem mounted precision ceramic roller inductors for a truly balanced tuner. World 39 s Largest Supplier of Amateur Radio Ham Radio and Communication Equipment. The Ultimate Transmatch was described in the quot Beginner and Novice quot section of the July 1970 QST Page 24 . Drake devices were named MN 4 MN 2000 MN 2700. I can spread 1 Khz on 16 meters. My ham club suggested a 102 feet ZEP antenna for me center fed with a ladder line 450 ohm. Using the phase angle of your SWR meter to find antenna resonance. net is a Web site dedicated to ham radio amateur Homebrew satellite antenna plans as well as s rtl sdr wp content uploads 2016 07 painted 375x500 in additiondxzone images pics 2015 03 01 20150301225600 676a88f4 ANTENNAS and antenna related topics . Internal resistive bridge with LED indicator protects rig during tuneup. Made from heavy 1 8th wall aluminum For some time I 39 d used an antenna tuner at the radio end of a coax feed with OK results but I knew I could do better if I located the tuner at the antenna. The crowded space above the set required a compact multi band dipole and the CHV 5X was selected to solve the problem the minimal space presented. It will tune dipoles verticals Yagis or virtually any coax fed antenna. 5 3 Three Element Portable Hand Held Yagi for 121. This antenna will cover 6 10 20 and 40 meters. My homebrew T Match tuner can load a 40 meter dipole on 80 meters too. The electrical characteristics of the Delta Loop can be found in any antenna book so I won t dwell on that aspect. Sep 11 2015 I can think of a couple of reasons why my Tuner Loss becomes a bit worse than the KAT500 at 15 and 10 meters and I suspect it 39 s either due to quot skin effect quot loss on my wiring or SWR related coax cable loss on the short length of coax running from my Capacitor board to the Tuner 39 s quot Antenna quot SO 239. 13 for the 75 80 m band and the Antenna tuner matching network matchbox transmatch antenna tuning unit ATU antenna coupler and feedline coupler are all equivalent names for a device connected between a radio transmitter and its antenna to improve power transfer between them by matching the specified load impedance of the radio to the combined input impedance of the feedline and the antenna. Multiband Dipole Antenna 10 14. Using the MFJ 971 Tuner we were able to load all bands but could not get a match below 2 1 on 80 Meters. The only commercial antenna tuner model I can recommend from experience is the Icom AH 4 which I love but don 39 t use any more. I have used it on 80 40 30 and 20m. current meter gave an SWR of 2 1 on an external QRP SWR meter. This project produces an inexpensive multiband end fed HF antenna matchbox that is provides full and semi automatic antenna tuning across the entire HF spectrum plus 6 meters at power levels up to 100 watts. I have made a small improvement to get better balance. The 4 Band antennas are OCF off center fed with a 23 foot leg and a 45 foot leg totaling 68 feet. 5 uHy inductors 20T 20 enamel wire on T106 2 torroid cores and the 40 meter coils consists of 18. It loads and works fine on the pre WARC bands 40 10 meters. Dec 11 2015 Most Antenna Tuners have a SWR Standing Wave Ratio meter which measures forward and reflected power. Palstar high power manual antenna tuners One year warranty New model AT 2K 2kW antenna tuner Now tunes from 160m 6m 1399 AUD Sold out Shipment due late July early August Features cross needle 300W 3kW peak and peak hold wattmeter with SWR measurement and a 6 position antenna switch. Nov 06 2012 Most of this article has dealt with the use of this antenna on 80 meters but it goes without saying that if you are actually running your antenna through a good antenna tuner you can cover all ham bands from 160 10 meters and all the frequencies in between. The overall length of that antenna is 44 feet. feed line and tuner analysis EH antenna the E H and CFA antennas. I decided to go a little farther and over the next several years added 10 12 17 20 and 30 meter elements. Designed to interface with the new TEN TEC Model 539 QRP Transceiver the Model 418 amplifier can be easily connected to most low power transmitter designs 1 to 20 Watts . The only tuner I do actually use is a homebrew L match. Make Offer mAT 180H HF Auto tuner 120W AUTO TUNER Automatic Antenna Ham Radio For ICOM mAT 180H 3MHz 54MHz HF 120W AUTO TUNER Automatic Antenna Ham Radio for ICOM C 213. It measures a tiny 6 x 6 x 2 inches Meter light uses 12 VDC or 110 VAC with optional MFJ 1312D. Our 4 Band antennas cover 40 20 10 and 6 meters with no tuner required 12 meters may also work on the 4 Band 300 watt model. 5 foot 6 10 12 15 17 20 Meter HF Vertical Patriot Antenna w 1500W PEP AH 2B Icom AH 2b bumper mount antenna covers 40 to 6 meters for Icom AH4 antenna tuner 100w without tuner this antenna is optimum for 40m and 20m band. Half Size W3EDP antenna 6 80 Meters with a tuner 42 feet long on September 24 2016 08 13 44 AM As an offspring of the 85 foot long W3EDP comes the Half size antenna for portable on the run operation. A 6 meter Yagi at 30 feet has a take off angle of 9. Homebrew 50Mhz Amplifier using two Russian Tubes GI7B about 700W output. This is when the most efficient power transfer occurs. The antenna tuner system can match loads of up to 26 1 initial VSWR within a frequency range of 3. The meter reading should drop by more than half with a reasonably good antenna but the reading can be ignored if sufficient transmit range is achieved. It 39 s GREAT stuff Antennas 2 Meter Electrician s Delight Antenna Rate AA9W CQ 1992 Apr pg 20 Antennas 2 Meter HT Antenna Simple 1 4 Wave Math WA2NDM CQ 1994 Sept pg 94 Antennas 2 Meter Oscar 10 Antenna How To Build A Six KA8OBL CQ 1986 June pg 40 2020 Nevada Radio. 468 freq mHz Length feet . You can use coax cable random wire or balanced lines. Antenna tuner matching network matchbox transmatch antenna tuning unit ATU antenna coupler and feedline coupler are all equivalent names for a device connected between a radio transmitter and its antenna to improve power transfer between them by matching the specified load impedance of the radio to the combined input impedance of the feedline and the antenna. For best results on 160 meters the tuner must be low loss. In the left of the bottom row is a Palstar balanced L network antenna tuner. This project uses some small gearmotors purchased from Hobby Engineering to drive the inductor switch and the two air variable capacitors on an MFJ 1500W antenna tuner. I have used this tuner for all balanced wire antennas since 1970. The next antenna and usually it is the first choice to erect is the 40 meter Off Center Fed antenna quot model OCF40Q quot . Two Ham Radio antenna tuners for sale Heathkit SA 2060 antenna tuner scratches on top but otherwise good condition 200 Homebrew antenna tuner built into a Collins case to resemble Collins S line equipment 95 Like for SWR meters the price of an antenna tuner is proportional to its performances some being for example unable to match SWR over 2 1 on 160 m. WHY USE A FULL WAVE HORIZONTAL LOOP INSTEAD OF A DIPOLE ON 160 80 75 60 and 40 METERS Rev 6 2017 A dipole antenna just will not work unless it is at a sufficient height. Technical Specs Antenna Tuner not Required. Amatuer Ham Radio Antennas Also Great For Limited Spaces. 160 6 METERS END FED ANTENNA The ULTIMAX DXTREME end fed antenna covering 1. Jun 07 2009 daiwa cn 801h 1. Oct 15 2010 I guess I will have to go with an external tuner then maybe pick up a radio shack meter to use with my MFJ 941E. However if you use a separate antenna for the HF bands and another for 6 meters as I do you need an antenna switch. You can see that the impedance is near 50 ohms across the sweep. 1 My 75 meter horizontal loop antenna is tuned by a home built Z match antenna tuner a slightly modified version of the Norcal BLT Balanced Line Tuner with a resistive SWR bridge using a super bright LED. A standard remote tuner at the feedpoint will ease construction and allow operation from 3. The Six Meter Extended Double Zepp is a very easy and inexpensive antenna for the 6 meter buff to build in about an hour or less and will add about 3 db to your signal from it 39 s broadside bi directional pattern when installed about a half wave up from the ground. 40 feets 2 plasterboard rails of 2. To connect the two I purchased 100ft of quot Davis RF 9914F Bury Flex 50 ohm Heavy Duty Coax quot . I use a simple dipole antenna of about 14 meters in length hanging out from my balcony connected to a homemade T network tuner. 2 ele 20m yagi 4 Ten Meter Beacons updated 22 January 08 version. have another plan for covering 10 and 6 meters which will constitute another project for another weekend. A well constructed tuned vertical antenna is a must for getting maximum range from your Part 15 AM transmitter. 8 MHz a 1 4 wavelength would be 9 feet long. 24 1 SWR across the entire 40 meters and and 1. 68 feet 23 39 45 39 long. An antenna tuner is needed built in radio autotuners and external tuners will work. The height in my trees would be at 65 70 feet. The PCB will fit on the space left in the front panel of the meter that 39 s the why of the round placement of the LED 39 s. I doubt you would need a tuner then. The antenna has a high impedance fed. Balanced Antenna tuner The tuner 39 s input circuit is unbalanced and it consists of Cin and Lin. The FCC restricts the total length of the antenna feed line and ground lead to 3 meters 118 inches . Nov 17 2008 The reading you see on the meter will be very close to your real SWR. If you really want the antenna to blend in with the background paint it light gray or light green and add some random black strokes here and there. I always needed a quot HEAVY DUTY quot antenna tuner that could take about 2KW to match with my Heathkit SB 220. With SWR we are trying to get the best match to 50 Ohms. So in this case we want to build an antenna for 6 meters 50. Feb 01 2018 Last updated 2018 02 01 Introduction This project is in BETA status. Otherwise known as the Miracle Whip Antenna or Miracle Ducker and other such names the antenna is meant to provide a counterpoise less portable vertical whip capability to the Yaesu FT817 and similar QRP transceivers. 5 quot analog meter shows FWD 100 and 600 Watt scales REV or SWR in Peak or Average. It has 25 relays to switch the coils and capacitors. I then set up my power meter at a distance of about 6 ft from the antenna. Fox Delta Amateur Radio Projects amp Kits Amateur Radio Projects amp Kits Homebrew Spectrum Analyzer A spectrum analyzer SA is only worth as much as its first local oscillator. The ATR 10 used a tapped inductor instead of a coupling link. 7 1 which is a little high but I use a Tuner to make the amplifier happy Mar 18 2014 On swapping between the two tuners I consistently received better reports on the Z match with marginally better reports using the 17ft counterpoise. 8 dbi at a 40 degree take off angle with maximum gain directly over head. Super strong custom fiberglass center insulator provides stress relief for ladder line 100 ft. 9 5 8 on 2 meters is 50 and impedance matching is provided by a low inductance coil The above combination provides a base loaded vertical antenna that works on 6 meters. Unlike a dipole the NB6Zep will operate on all ham bands 40 10 meters including the WARC bands with no strain on the antenna tuner transmission line or operator. The feed point of this type of antennas off center has an impedance of about 300 Ohms. Here is the pattern of the 160 80 meter antenna on 3. Assembled in 20 minutes by two persons. Everything is a compromise of some sort. Bazooka Antenna Design from WE6W Beverage a short beverage design by K3KY Broomstick Special compact easy to build operation and connected the tuner ground to the ground rod. through 5 meters typically in less than ten seconds. net Abstract A coaxial cable trap dipole antenna installed in the attic provides a surprisingly effective solution to HF operation on the 10 15 20 30 40 and 80 meter amateur bands at a QTH with restrictive covenants that prohibit outside antennas. I bought 4 mobile stick antennas for 20 and used two of them plus a structural T tie bracket reformed with a hammer while in my vise mobile mount stud for the hot leg 3 8 24 bolt through male to male adapter from a spring mount for the ground leg. The purpose of this tuner is to provide a matched load when using antennas not normally used for 6 meter operation. For general shortwave listening this antenna tuner will work very well with a straight wire of up to 50 or even 75 feet in length. The tuner is designed to be wall mounted. schemas vhf_portable_dipole_on6mu. Please place your order with deposit 249. There is also an appendix on Anntenna Matchbox selection and another on Baluns including how to build your own simple and effective balun for use with an Asymmetrical Matchbox. Employing a RigExpert AA 230 antenna analyzer I measured 1. Dec 16 2011 I built an antenna tuner on the the wiring of the ultimate transmatch and this thing runs weird. I don 39 t have any digital mode capability not even an old TNC and that suits me fine. Once the two end masts were in place we moved inside to construct the doublet antenna. MFJ 949C 300W HF 160 10 METER HAM RADIO ANTENNA TUNER. So on a 40 meter vertical you can have a few radials that are 34 feet ideal 1 4 wave at 7. Commercial Antennas Homebrew Antennas. Automatic Matching 100 Memory Antenna Tuner Automatic Matching for FT 897 857 Series FOR ALL BAND HF ANTENNA EXCITEMENT Here is a fairly simple and easy to build multi band horizontal fan type dipole that can be constructed for all band operation from 160 meters up thru 6 meters or even higher. LEO Satellite Antenna 3 Elements for 2 Meters crossed with 7 Elements for 70 cm 146 437 14 Alaskan Arrow LEO Satellite Antenna 4 Elements for 2 Meters crossed with 10 Elements for 70 cm 121. Now I run a Kenwood TS 480 SAT with a Heil GM5 broadcast microphone Behringer EQ mixer MFJ 949 Tuner with the Sirio 827 for 10 12m and a ZS6BKW tuned feeder antenna for HF. Jan 17 2011 Home brew Extended Lazy H designed for 10 meters uses 44 foot elements vertically spaced at 22 feet and fed at center with Home brew 600 ohm ladder line. It will work with any HF radio transmitter. This antenna would be a good choice for an antenna when the ham could only put up one DU 1500T Antenna Tuner User s Manual ARRAY SOLUTIONS 2611 N Belt Line Road Suite 109 Sunnyvale TX 75182 USA 1 214 954 7140 office A 3 foot antenna will need about 820 uH for a 1. Without adjusting the variable capacitor I had a 1 1 SWR. 2M Moxon Antenna I tried my first contest recently RSGB 2M UKAC and really enjoyed myself although I realised just how restrictive my J Pole antenna was when it comes to SSB and directionality so I build this little moxon antenna using details provided by G0 PA0FRI have developed this interesting antenna tuner. Materials are easy to find and inexpensive relative to the function and fun this antenna brings to the table. As typically installed it is a compromise antenna but great for portable use because it is easy to pack and easy to install. I have the Ten Tec 238B which purchased many years ago working fine without any problem. Random Length Radiator Wire Antenna 6 6. com SIGMA EUROCOM SE HF X80 VERTICAL RADIAL FREE ANTENNA 80 TO 6 METRES Go to amazon. I made an impedance match transformer with 6 turns in from the amplifier side to 12 turns on the Single Fractal Magnetic Loop Antenna Reduced size 3 times than conventional magnetic loop size 1. This antenna tuner was designed for multi band wire antennas such as doublets loops fed by open wire ladder line often 600 ohm ladder line . EXAMPLE the first director is 120 F if F 88 MHZ then 120 88 1 36 CAROLINA WINDOM 80 List Price 199. You can monitor how each twist of a knob affects the SWR. I wanted to demonstrate that it is very easy to build an automatic antenna tuner with the Arduino. Comes with coils for 10m 20m in good condition and 80m coil that needs refurbishment. The picture below showing the feedpoint at 70 feet was taken from the roof of my house. antenna s overall width is 68. A good use for this technique is with a half wave antenna for the 160 meter or 80 meter band. This is my first home brew DIY antenna for use on local 2 meter repeaters and simplex frequencies. With a 6 1 Balun transformer is possible to feed easily by using a coaxial cable of 50 Ohms 300 6 50 like BROAD PRO 50 www. The schematic shows what I have done. 8 MHz Length 16 ft 18 ft 22 ft 25 ft 33 ft 46 ft 65 ft 130 ft 260 ft 6 in. It is also a 1 4 wave antenna for 27 MHz but will not work for 11 meters because the impedance is all wrong almost 5 1 VSWR. C Home Brew Antenna Tuner Assume that the non resonant antenna has SWR at both meters of 10 1. This page details several T match tuners. Measures AG6K 6455 La Cumbre Rd Sons CA 93066 ntenna tuners are like shovels. See how my early theoretical predictions and descriptions compare to actual field measurements of this most recent antenna theory hoax Flag Pole Verticals 15. Adding more elements has two main difficulties First is that the addition of elements lowers the impedance of the antenna and thus high gain antennas usually need a tuner or balun to operate well. New Hex Beam from MFJ delivers solid gain and directivity on 20 17 15 12 10 and 6 Meters in a low profile package that will have your pocketbook and your neighbors smiling When it comes to lightweight directional HF antennas the MFJ 1846 Hex Beam tops the list for its low profile footprint solid construction and DX snagging design all 6 80 meter J Pole Jr 34 foot end fed HF antenna quantity Add to cart SKU Jpole_Jr Categories All Antennas HF Base Portable Tags Alpha Antenna Base JPole Building A Full Wave Quad Loop Antenna for 6 Meters This is an easy antenna to build and the materials cost about 15 20. INITIAL RESULTS For a compromised antenna system it performed as well as my 80 meter inverted vee. A L network automatic coupler mounted at the antenna feed point is ideal for automatic matching of random length non resonant wire or vertical antennas over a 1 day ago Amateur Radio satellite communications looks like loads of fun to me. Either use a quot counterpoise quot at least 0. Jun 20 2014 The 2 meter Halo is mounted at 24 feet and the 6 meter Halo is mounted at 20 feet high. hustler 37 54 mhz 300 watt 9 39 2 quot omni directional 4. 50 m a piece of bed frame copper pipes plumbing clamps two handle brooms to pieces of Plexiglas. I found fiberglass reflective driveway markers at the hardware store for about 3. a tuner transmatch matchbox it to tidy up higher SWR on other bands. Sep 15 2002 20 foot 6 30 meter high performance commercial duty flagpole antenna LIVE IN A CC amp R RESTRICTED AREA The Zerofive multiband Flagpole vertical is what you need. A friend of mine Flavio Pohlmann PY1ZFP who is living in Montreal showed me a homebrew VHF magnetic loop with the diameter of a DVD and told me how impressed he was with this tiny antenna. This is not impedance matching. another 6 m j pole design archives of the wayback machine 6 meter slim jim 300 ohm metric. 5 1 with a tuner but is a little iffy on 30 meters. Commercial antenna tuners have VSWR matching capabilities from 3 1 to 100 1. Simple to assemble and easy to operate. Tunes coax fed and balanced line fed antennas plus long wire antennas. I found the swr to be about 2 1 on six meter. The BT1500A 1500 watt balanced antenna tuner is the only 1500 Watt Double L Network antenna tuner on the market today covering 20m to 160m 2500 j2500 and 10m 15m 1000 j1000 . It has a SWR bridge built in and checks the swr as it tunes to resonance. Winding Teflon encapsulated Heavy film insulated wire Core Low permeability Ferrite Toroids. I thought about doing any of 3 things 1. With a single variable component L network tuner the SWR will usually be less than 1. Assembly time is about 30 minutes. SKU Halfwave wire lengths 12 thru 40 meters KC8AON Homebrew C L C QRP Antenna Tuner 7N3WVM Homebrew C L C QRP Antenna Tuner 7N3WVM Modifications to the Single Coil Z Match for 1. The 4NEC2 forward gain is reported to be 15 dbi. Over the last 28 years I have tried many different 160 meter antennas. Pedestrian 5 Band Mobile Antenna From W3FF Petlowany Three Band Burner Antenna Trapless short vertical antenna Resonant on 20 15 and 10 meters without traps 12 and 17M with a tuner. Unit Includes Graph of BBTD Antenna Gain vs Frequency BBTD Antenna 3D Computer Model Perspective View Operation on the 160 Metre Band The bow tie configuration prototype BBTD with dimensions shown above has a low frequency efficiency knee drop off around 3. It s modeled after the basic delta loop design and is fed with a 1 4 wavelength of 75 ohm coax RG 59U . 4 lbs the Model 418 will operate from any 13. US4LEB ATU for HF Bands Thus claiming full coverage from 160 through 6 meters even if it requires changing the whip length on the higher bands is meant to sell antennas. of 16 quot silky quot stranded wire cut to one wavelength long on The MFJ magnetic loops are about 36 inches in diameter made of aluminium which is welded to the tuning capacitor to minimize losses. 1 mHz and a few at 38 and a few at 30 feet. I wanted high efficiency 40 Meter antenna with low angle radiation. I recommend using a link coupled balanced tuner as shown in Figure 2. org The K6MYC on Antenna Testing. They are so very simple to make that I find it hard to justify purchasing a store bought unit. It will usually even work well on 6 meters if your tuner and balun will handle that band. The multiband dipole I describe in another article could have another wire added for 160 Meters. I am currently using this antenna on all bands from 80 10 meters. Because you can tune almost anything to almost any band it is possible to get 10 and 15 meter use too with the propagation issues described above. 12 wavrider Nov 2 2011 n0zna Digital master May 28 2016 A better reason to consider this antenna is for reasonable 80 20 meter use and as a practical thing to try for the 160 meter band. Whenever I would go to a sidewalk sale or hamfest I would pick up any components that might someday come in handy to make a tuner. The basic formula for determining the length of a center fed half wave wire Dipole or Inverted Vee antenna is . OR COMMERCIAL MULTI BAND TRAP VERTICALS. It also permits the rear window to be opened without hitting the antenna. High Performance 40 Meters Vertical . Most of the current transceivers with a built in automatic tuner will tune a CAROLINA WINDOM on all bands. or 72 grams Jun 06 2009 Condition homebrew with components available in local market Personal review Operating range 500 kHz 2. I do not have high power on 2 meters however the performance measurements certainly show that the switch will work fine on 2 meters at high power. Otherwise if you don 39 t like to bring ATU try to use a quot long quot coax feeder more than 10 meters Antenna Transmatch Tips. ANTENNAS and antenna related topics . 6 m the height difference between its top and bottom is 26. I am not sure if I could tune the antenna correctly with 5 watts of power using the MFJ 941 meter. 5 1 SWR on 75 meters but the MFJ 993 got the SWR down to almost a perfect 1 1 match the first time. 12 quot tubing MFJ 6 Meter Antenna Tuner w Watt Meter 50 54 MHz 6 Meter antenna tuner for The Magic Band gives you low SWR with practically any coax fed antenna mobile whips dipoles verticals vees random wires beams. No change to the gamma arm will be required if this antenna is altered for 6 meter FM. Sep 16 2012 A fixed vertical antenna on 160 meters is comparable to a typical 80 meter mobile antenna. Strip 3 8 inch of insulation from the remaining piece of 14 gauge wire and crimp a 10 ring terminal on it. This article describes a compromise between 10 meter performance and 40 meter performance. If a random wire antenna is used make sure that there is not a jumper wire between WIRE and BALANCED LINE. 3 element beam A quot Broomstick quot antenna made with a 2 meter section of 25 mm diameter plumbers PVC pipe terminated with a 30 cm diameter top loading disk is the minimum I would use for transmitting. In case you didn 39 t read the articles the quot EZ Tuner quot is a homebrew automatic legal limit antenna tuner that covers all amateur HF bands from 160 10 meters. The roller inductor is 26 uH but you could probably make do with 20 for 160 Meters. Amateur Radio Homebrew Projects on the Net This page is dedicated to Amateur Radio Homebrew. 5 to 6 dB improvement as measured on 40m by Rudy Severns N6LF. Page 26 MFJ 993 IntelliTuner Automatic Antenna Tuner Instruction Manual Never try to load a G5RV or center fed dipole on a band below the half wave design frequency. Windom Antenna Feed with coax cable 7 8. The antenna which the CG 3000 tunes is an eight meter long Comrod vertical a professional antenna which is normally used on board of ships. Page 27 Appendices The HF station is an Icom IC 718. 27m Doublets can use either 450 ohm ladder line for his feeder back to the shack 1215 ANTENNA TUNER PARTS LIST 9 1215 Antenna Tuner Manual Part 74449 PART DESCRIPTION QTY CHASSIS ASSEMBLY 23227 Cap Air Variable 2 27007 Lamp Socket Bayonet 1 30894 10k Panel Mount Pot 1 32077 Rotary Switch 3 Pole 4 Position 1 32098 Rotary Switch 2 Pole 5 Position 1 The main thing is to plan out the next few projects. From what I have measured the EFHW 16040 HP is really only useable on 160 and 80 meters. 24 meters of 450 ohm ladder line 25 feet 7. All very interesting until the assumptions and modelling were developed into a practical antenna following the parameters established from the modelling. Limited operation can be provided on 60 30 and 15 Meters with a wideband tuner with a maximum power level of 100 Watts PEP. Apr 02 2018 Antenna tuners seem to be some of the most misunderstood devices in all of amateur radio. Some will use other hook ups but this is the arrangement I prefer. 1 A W8JK of 10 meters scale It consists of 4 rods from 16. In other words an antenna with a 1 1 SWR works better than one with a 1. The rest of the equipment was shipped via UPS. An LCD display right shows current settings and operating frequency and a large meter shows reflected or forward RF power. Lots on the web about antennas more than a lifetimes worth. 1 1 SWR at the antenna connector of each Vertical. Model 418 160 6 Meter Solid State Linear Amplifier Antenna Tuners amp Analyzers. 2 1x1 meter and 70X70cm Fractal shape make antenna much broader bandwidth up to 120 KHz on 10 meters band Easy tuning slow motion power dc moto 8 6 32 x 3 8 quot Stainless Steel Hex Head Bolt Mounting MFJ Tuner and DXE FCC to Mounting Bracket 4 6 Stainless Steel Tooth Lock Washers For Mounting FCC to Mounting Bracket 4 6 Stainless Steel Flat Washer For mounting FCC to Mounting Bracket Figure 1 DXE MBV ATU 1 Multi Band Vertical Remote Antenna Tuner Add on Kit parts shown separately and Sep 13 2017 Last Saturday I ordered a pre built Emtech ZM 2 antenna tuner with UHF connectors and it arrived today. 2 days ago Antenna projects for 144 MHz category is a curation of 148 web resources on The Tiny 3 Magnetic Loop for the 2m band Feed line Dipole for 2 Meters. An Attic Coaxial Cable Trap Dipole for 10 15 20 30 40 and 80 Meters John DeGood NU3E nu3e arrl. I made this 2 meter homebrew antenna in May 1982 previously I used a 5 8 l for local communication. C6ARW 2013 CQWW DX Phone 10 Meter Pile Up 10 27 13 1305 1318z. 0 MHz rated at 2 KW SSB The DXTREME models are the ultimate end fed antennas with the capability of covering from 160 6 Meters and able to handle legal limit power handling with ease. Mobile Mounting The UHV 6 was designed to be lip mounted using the CP 5M or HD 5M coax included . Dec 24 2010 The trailer hitch keeps it pretty far from the vehicle body which helps keep the Q up and it reduces the capacitive coupling to the vehicle. Features Cross needle SWR Power meter 300W amp 30W scales meter illuminates if hooked up to 12Vdc. Homebrew Nvis Antenna Jun 26 2010 This also increases the F B front to back ratio which is the difference in reception to the front versus the rear of the antenna. Dec 25 2010 I love that length. If they are in between a bunch of houses or other objects it is difficult to predict how anything will perform regardless if it is a commercial or home brew antenna. The antenna is assembled from telescoping aluminum tubing and is a total of 44 feet long center fed with 300 ohm ladder line. The number of turns on the toroid can be changed to emphasize the low mid or high portion of the 160 10 meter bands range as well as the choking impedance see graph below . Emergency Amateur Radio Club Honolulu HI Homebrew Projects. The window is a a special hurricane resistant shatter proof glass. Solve Virtually Any Restricted Space Problem 40 Meter Isotron only 22 inches x 16 inches x 15 inches Easy Quick and Simple Installation Tunes amp Performs Without Radials or Antenna Tuners Handles Up to 1000 Watts PEP The EndFed 40 m to 6 m Antenna is arguably one of the best field antenna choices you can make for QRP ops and is especially well matched with the KX3 FT 817 the KX1 and any other QRP rig with a tuner. But even though the transmitter doesn 39 t overheat the propagation is poor and no one hears me. Super Antenna TM4 SuperPod Large Portable Tripod is a collapsible portable antenna tripod that comes with with a black nylon carry case it has a 3 8 quot 16 male stud fitting and UM3 SuperMount for a 3 8 quot 24 antenna and SO 239 coaxial cable connector the TM4 SuperPod is made by Super Antenna Systems Corp. The capacitors are the power limiting factor. The MFJ 993 supports radio tuner interfaces such as the ICOM 706 series. It tunes all bands 160 through 10 meters with a SWR less than 1. Mar 12 2007 I have used the 49. Jun 06 2009 Condition homebrew with components available in local market Personal review Operating range 500 kHz 2. It will match an amazing range of antennas and impedances far greater than some other tuners you may have considered including the built in tuners on many radios. 7 1 making the antenna pretty much useless at 40 meters. I came up with an antenna that extended only 1. Well the only way I 39 ve been able to achieve that was. Only a dipole would be easier to construct and maintain. A lighted Cross Needle SWR Wattmeter shows SWR forward and reflected power simultaneously and has an ON OFF lamp switch. I use an antenna tuner with the balun coin connected to the antenna tuner. Page 1 MFJ 1838 6 10 12 15 17 20 30 40 METER COBWEB ANTENNA INSTRUCTION MANUAL CAUTION Read All Instructions Before Operating Equipment 300 Industrial Park Road Starkville MS 39759 USA Tel 662 323 5869 Fax 662 323 6551 COPYRIGHT 2018 MFJ Enterprises Inc. The line should run horizontal for 40 feet or more. Homebrew of radio equipment antennas tuner etc. Figure 1 Basic 75 Meter Dipole. wire wound on steatite ceramic core silver plated bar and wheel l ANTENNA SELECTOR SWITCH 6 position Coax 1 tuned and tuner bypass Coax 2 tuned and tuner bypass Bypass Tunes 6 to 800 ohm loads 16 to 150 ohms on 6M 6 to 3600 ohms with optional 4 1 Balun LDG RBA 4 1 For Dipoles Verticals Vees Beams or and Coax Fed Antenna Optional external Balun allows tuning of random length long wire or ladder line fed antennas Includes 6 39 DC power cable Antenna portion is made from 30 39 of lightweight stranded copper wire on a winder. The AT2K 2000 watt antenna tuner covers 160 to 6 Meters with a power rating of up to 2000 watts PEP and features a newly designed smaller roller inductor allowing the AT2K to tune 6 Meters without the need for the additional red button as on older models. At present most of my gear is commercially made including my ATU. This is a complete tuner controller and directional watt meter for your own remote tuner. The antenna is in my attic and my 11 meter CB base radio is in my kitchen. With the feedline finished solder the leads at one end to your antenna prepare the other end for your balanced line tuner or balun and then haul it all up into place. com MFJ 1778 G5RV Wire Antenna 80 10 Meters Authorized Dealer Go to amazon. Antenna gain is measured in either dBi or dBd. Made to swing mount in a 19 quot rack. One vendor says to use 150 feet of RG 213 for best all band operation of the 43 foot antenna so you can tune from the tuner in your shack . It works well on 40 meters and with a simple Tee tuner in the vehicle it tuned up on 30 20 15 and 10 meters as well. Apologies we will be closed until Government Restrictions are lifted. It is basically an 80 meter dipole fed by a length of 450 ohm ladder line into a balanced antenna tuner. This quick test on 40m resulted in a 5 6 contact to St Albans north of London a distance of 50kms. After watching the video please read the field test stories below the video as this design flies in the face of a theoretical 80 meter NVIS antenna design. 2 ft 15 Meter length of wire on vacation with both automatic tuners and an MFJ Model 16010 tuner with good results for 40 20 17 and 15 Meter operation. It was recently taken out of service. Modifying the MT 3000A tuner for additional features 12. My MFJ941e lowest scale is 30 watt forward with a 6 watts reverse I think. Conclusion The 20 meter vertical dipole center fed with 450 ohm ladder will be a good performing and inexpensive 20 through 10 meter omni directional antenna used with a tuner and current balun at the tuner. On 40 meters the antenna is about 1 wavelength so there will be 2 lobes. The Antenna Is Resonant On The 15 Meter Band But Requires A Tuner On Other Bands. However you can build it This Home Brew Delta Loop Originally Designed To Work From The 20 Meter Band To The End Of The 6 Meter Band But Found That The Design Is Not So Bad From 40 Meter To 6 Meter So It Covered 2 More Bands From The Originally Intended Frequencies. homebrew that this is not a true balanced situation. Delta Loops for HF quot You 39 ll love lower noise and relative gain over a dipole 39 s ears quot Stephen D. Normally as you move the feed point of the antenna the impedance will change so you will need to use a 4 1 current balun with this antenna. The finished tuner is just 2 quot x 2 1 4 quot x 7 8 quot and the weight is 2. This allows me to adjust the antenna 39 s length easily in the field if necessary. 13 for the 75 80 m band and the For some time I 39 d used an antenna tuner at the radio end of a coax feed with OK results but I knew I could do better if I located the tuner at the antenna. The basic 40 meter direct conversion receiver is done the antenna is almost done and the antenna tuner is next with most of the parts enroute so it makes sense to build a transmitter for 40 meters I am leaning towards a CW SSB transmitter. 25MHz then I removed the resistor and attached the half wave antenna 6. In addition specific models mentioned in the Manual antenna tuners forum Like comet yaesu icom watson vectronics ldg electronics MFJ and more are here for future reference. Changes to the height will require adjusting overall length . With low SWR your rig will be more efficient you 39 ll get more power out of your 6 meter tranceiver and into your antenna Jan 08 2009 The most simple is a 75 meter dipole fed with open wire or ladder line tuned up on 160 meters as shown in Figure 1. 3m long almost vertical but comes into the house about 3 ft above ground level using commercial feed made from copper clad steel to an antenna matching unit Palstar AT1KM 66. Antennas tuners amp parts Alinco EDX 2 Remote antenna tuner. Connect the antenna analyzer to the red wire BNC connector. This antenna would otherwise have a low SWR at the middle of the band and a to 1 SWR at the band edges. 13 off center I feed it with 300 ohm open air spaced feeder. Doing so will interfere with antenna performance. After a few minutes of polite small talk Qwilleran broached the subject. As you all probably know I use this comercial antenna with a lot of good rapports with my Bitx projects. The compromise dipole length is 44 feet. 25 ohms would not be much of a problem but you don t want to bypass the internal 4 1 Balun by connecting the ladder line to the random wire post and antenna tuner ground. If no antenna tuner was used then the level of SWR might rise to a level where the transceiver output protection could start to reduce the power level at one extreme of the band or the other. Sep 04 2019 My multi band antenna is a G7FEK which gives me coverage on 80 40 20 and 15 without a tuner. HB 1930s balanced feed antenna tuner FS . This may be the best 6 meter vertical antenna you will find. com Inverted L 160 6 Meter Band HF Poly Stealth Antenna SWL Dipole Marconi Go to amazon. 8 30 MHz and tunes almost any coax wire or balanced feed type antenna a 4 1 toroid balun is built in for balanced line . Restrictions on my antenna potential. After all if MFJ could do it so could I. Jun 28 2014 Commercial antenna tuners are very expensive and often of questionable quality. You do give up the rapid frequency change capability in doing so however a manual tuner The 6 segments are 4 6 8 10 12 5 15 mm. A 30 foot insulated 18 gauge stranded wire antenna and connecting lug is included with the project and should meet most requirements. The photo to the right is an example of how the antenna may be supported with minimal holes or damage to the wall. All Bands Vertical Antenna HF homebrew A few months ago my friend 9W2 AYR Anuar and I visited my new friend 9M2LR Mr. I transferred the twinlead to the binding posts of the ZM 2 and proceeded to tune 39 er up. The finished system performs well and has very good Front to Back nulls. As you can see the Halo makes for a stealthy antenna even though that was never one of the design goals. I could tune my 75 m loop on all bands up to and including 20 m but at higher frequencies I could not get the series capacitor small enough. Also for peaking up portable or rover antennas. The dimension of the antenna below is in function of the frequency. balanced line tuner The first antenna I tried was my old reliable twinlead fed 40 Meter dipole. A tuner will be required to tune the six meter band. The antenna system looks like several thousand Ohms at the tuner on 40 meters. It will tune dipoles verticals Yagis or virtually any coax fed antenna. Quarter Wavelength Vertical Antenna 7 9. 8 to 60 MHZ New Now covers 6 meter band and has antenna bypass Switch Don 39 t go mobile without it Don 39 t leave home without this mobile tuner Have an uninterrupted trip as MFJ 945E extends antenna bandwidth and eliminates needs to stop go outside and readjust your mobile whip. The antenna cover 80 40 20 17 12 10 and 6 meters with no tuner required 1. I have both antennas switched into an MFJ 945E tuner and on to the radio. 625 in Outer cylinder made from 6 of 3 4 copper pipe I. Now to adjust your Z Match antenna tuner vary the two capacitors until the REF LED is out. This is the pre copy edited version updated in May 2003. Jun 20 2011 An antenna tuner also known as a transmatch is a device for correcting an impedance mismatch between a transmitter or receiver and an antenna. I tuned the coupler to resonance into a resistor in my case 3. Both types of antennas are world renown for their unique characteristics in the 40 meter and 20 meter bands. For exemple in FM broadcasting band choice 100 MHZ it 39 s easy for calculate The dimension is in meters . Do not place a balun in the coax line. Portable End Fed 40 6 Meters Poly Stealth Dipole Antenna 1. l INPUT amp ANTENNA TUNING 2 x Variable capacitors 600 pF 6 kV Peak 6 1 Vernier Drives for both capacitors l INDUCTANCE 28 H roller inductor 10 amps 5 kV 10 ga. ARRL Product Review of the M2 6 Meter HO Loop Antennas. Analog Meter as sensitive as possible and calibrate the scale with a good SWR meter May 18 2019 Put the antenna back together hooked up the coax and my neighbor and I raised the antenna once again. If your antenna tuner is rated more than the peak output of the linear amp it can be connected after the amp. Bandswitching is accomplished by changing coils. See how my early theoretical predictions and descriptions compare to actual field measurements of this most recent antenna theory hoax Feb 04 2012 A single antenna can cover the entire amateur 2m 70cm allocation with more than acceptable SWR. Below the 6 meter antenna seen here positioned towards the rear of the vehicle is another magnet mount. Converting Antenna Tuner MFJ 962D for Operation with Symmetrical Ladder Line. At resonance the load is purely resistive and all power is radiated. THIS TUNER ONLY HAS 2 CONTROLS AND WILL TUNE ALMOST ANYTHING I really didn t need another antenna tuner but I had the parts in my junkbox and figured I d build a homebrew Z match tuner just for something to do. I just left a wire jumper to keep the RF path intact. This is be cause they do not provide a match between the feeder and the antenna. The Link Coupled Tuner or LCT is an inductively coupled tuner that uses 2ea tuned Tank Circuits to inductively couple an RF signal from the Transceiver to the Antenna System and also in reverse. Apr 07 2019 MFJ 929 Antenna Tuner After getting into data I started running into antenna issues. If you can get about the same efficiency 5 or less at absolute best figure you done real good A dipole or other horizontally polarized antenna will typically be easier to deal with on 160 meters. Using an open wire parallel feedline commonly called ladder line with an antenna tuner it tunes up on the 10m band as a 5 8 wave loop as well. Here I use a windom antenna on 80 10 m. Using the knowledge gained while adding the 20 meter element it was a much easier job to mount and tune the additional elements. Find Hustler 6BTV 6 Band HF Vertical Antenna and DXE Installation Guide Packages 6BTV and get Free Standard Shipping on orders over 99 at DX Engineering The QRP transmitter above is designed exclusively for 40 meters 7. This gives rise to needing an antenna. Ideally you should try to use no less than 2. 1380 80 Meter QRP Tx Rx Microphones amp Matching Cables Amplifiers. Jul 06 2012 Arrow Antenna GP52 6 meter 1 4 wave GP Product Reviews Arrow Antenna GP52 6 meter 1 4 wave GP product reviews by real people like you. The toroid is rated at 100 W although that might be only ideal. A very inexpensive and easy antenna to assemble. As a home unit resident the size of a full half wave is pretty impractical but I decided to try it so I had a base line to compare future shortened verticals to. If you use separate antennas for VHF and UHF diplexers are available to split the one port into two. Both are operated as quot pseudo balanced quot that is a balun placed BEFORE the tuner circuit. It features Balanced and unbalanced output Support for quot true quot balanced L C L matching networks or floating ground Optional LCD display Lock switch Tune button Receive bypass Regular and Latching Relay support through the use of hardware control macros 8 switched inductors and 8 switched capacitors Optional The MFJ magnetic loops are about 36 inches in diameter made of aluminium which is welded to the tuning capacitor to minimize losses. Match dipoles verticals inverted vees random wires beams mobile whips SWL receiving antennas nearly any antenna. By using 450 ohm ladder line this antenna can be utilized on almost any frequency in the HF region. 5 80 meter coil L 18 17 meter coil L 14 20 meter coil. Dimension according to your preferences. 2016 Dayton Hamvention The electrical characteristics of the Delta Loop can be found in any antenna book so I won t dwell on that aspect. I built my first homebrew 160 meter transmitter in 1959 with parts from a discarded TV set. Good Documentation for the Dentron MT 3000A antenna tuner 11. On 20 meters shows about 1 1 17 meters about 5 1 15 meters about 6 1 12 about 5 1 and 10 meters about 4 1. This portable antenna is a normal quarter wave resonant vertical on 20 6 meters and uses sixteen ground mounted radials. However I can offer some other suggestions. I have been getting good reports from as far as Florida on 16 meters and without a tuner I can spread most of the phone band on 8 meters. You can either homebrew your own one very easy and lots of designs available on the internet just use Google or buy a 2m 70cm antenna from any shop that sells amateur radio equipment. This keeps the antenna compact and is also a good length for a condo balcony installation. Also the window is KELLNER Improving the TV to computer connection What I did get versus an over the air antenna was quite a bit more Broadcast channels from Washington and Baltimore their HD extra channels certain public affairs and local government related channels some of which can cure the most persistent Read more on Washington Times LCD LED plazmatelev zi Most m r ltal ban I found a way to have a reliable Indoor HF Antenna despite my antenna restrictions SGC SG 230 I have always been what s known as an Appliance Operator With the SG 230 smart tuner I have an indoor point and shoot antenna for 160 10 meters. It retains the high strength in the antenna wire allowing the antenna to help support the central mounting pole. ASSUMPTION The antennas are erected in the clear. The end fed antenna functions well in several configurations including horizontal sloper and vertical configurations . Mar 18 2019 700 amateur radio topics 6 000 links amp 133 pages from antennas to zones and insertion loss are both very low on all ham bands through 2 meters. You will also find many documented variations of the classic SWR meter on the Web. Mobile I use an Icom IC 706 and mono band whips. Another vendor says to ADD 150 feet of RG 213 to your cable run. I have always enjoyed operating on 160 meters. 6 meter slick six dipole. It utilizes a 9 1 UNUN transformer same as used in our standard endfed to bring the impedance of the antenna to more manageable values for your antenna tuner. The basic design comes very close to the design at hamuniverse. Model 238C uses our tried and true L match design used in the earlier 238 238A 238B models with a new cosmetic design larger heavy duty tuning capacitor than the original and backlit cross needle SWR and peak power output metering. The above graphic depicts the overall layout of the loop antenna consisting of 558 ft. Experience has shown that most external tuners and many internal tuners will tune 80 6 meters with an antenna length of 22 to 30 . Take any antenna tuner intended for the 20m band and divide both the inductances and capacitances by 10 . For a homebrew beam tune up is a two step process similar to that of the gamma A well constructed tuned vertical antenna is a must for getting maximum range from your Part 15 AM transmitter. The antenna is simple to deploy folds up easily for transport and weighs under a pound yet with the 71 foot included wire can work the 80 10 meter bands easily with the built in antenna tuner of most current day transceivers. I connected an old SWR meter to one of my Arduino boards. In practice under this condition we have an SWR ratio of 1 1 2 in 80 40 20 in others bands the SWR Model Frequency Gain dBi Power Rating Boom Length Weight Lbs. Antenna patterns are reasonable for local or DX work. The 40 meter section of this antenna works the best for me right now. Mar 05 2015 4 Band antennas cover 40 20 10 and 6 meters with no tuner required 12 meters may also work on the 4 Band 300 watt model. If you are after efficiency coax should never be quot tuned quot except in the case of minor mismatch for instance changing a 3. I run less than 100 watts into a horizontal full wave loop antenna that 39 s resonant around 2. k3ng buil At 18 MHz if the coax Antenna Tuner mode is selected the PRC 104 tries for about 12 seconds to tune up then sounds a warning tone. One W9INN 4 1 balun 50 feet 15. The neighboring house is only 6 feet away from my house at the place where the dipole is mounted. Moe AB8XA added For best results use one at the antenna and one for the rig side at the antenna tuner. In the manual mode the EZ Tuner has the quot feel quot of an ordinary antenna tuner with knob controlled variable capacitors and pushbutton operated inductor switch. After a few talked he gave us an article about vertical antenna that he took from the internet. 61 Find great deals on eBay for ham antenna tuner and antenna tuner ham radio. This little Z Match tuner was one of my favorite and most useful projects. These tuners have been tested with 100 W on 10 and 6 meters 50 W on 2 meters and 20 W on 70 cm the maximum output of my rig. Hit the auto tune button on the TS 590S VIOLA the antenna tuned up on 40 amp 75 80 meters. 3 1 SWR across the 15 meter band and an average of 4. Changing bands and or antennas is a matter of rotating a selector switch. 65 meters or about 5 feet 4 inches above the top of the vehicle. The base diameter is 1 3 4 inches and made of 1 8 inch thick high grade 6061 magnesium alloy aluminum tubing. 2k so a 1 1 SWR was obtained on my chosen frequency of 21. He turned his horse and kicked it to where the Mahratta warlord waited under his banners. If one wants best performance on 40 meters then 48 feet is the length of choice. 3 2 doublet with 31 1 4 ft of ladder line then fed with coax. One end goes straight into the rig often with no feedline and the other end in the air attached to something as high as you can find. Since the sides of the square are equal this means the finished antenna is approximately 5 feet square. This was reduced to 1 1 by minor adjustments of the tuning and matching controls. Note the standard steel coils are not corrosion protected Corrosion will take place quickly due to Homebrew satellite antenna plans as well as s rtl sdr wp content uploads 2016 07 painted 375x500 in additiondxzone images pics 2015 03 01 20150301225600 676a88f4 HF 6M Antenna Tuner Preselector and Antenna Switcher RE AT1HF6 By Guy de ON6MU revision 4. 0 VSWR to 1 1 the idea being that at 3 1 or less with good rg 8 or better coax on the lower frequencies the AT 200 Pro II 229 to au tuner 250 watts covers 6 Meter band AT 1000 Pro 499 auto tuner 1 000 watts Power ratings range from QRP to max legal power. BUILD AN HF ANTENNA TUNER MAKE A HOMEBREW HF VHF ANTENNA TUNER Normal use will be HF and perhaps some circumstances in VHF bands. I later upgraded to a Heath AT 1 a homebrew antenna tuner and a Windom antenna fed with 300ohm twinlead. Just had the diode in backwards but that was easy to fix. Each antenna is installed and tuned to give a 1. The ladder line is made from 14 stranded wire and 0. Under the operating desk is a homemade 160 6 meter 150 watt amplifier and power supply. Jan 27 2019 Home ANTENNA TUNER Understanding HF Antenna Tuners What Does It Do 0. If you want to operate an 80 meter antenna on 160 meters feed either or both conductors as a longwire against the station ground. For know the length of the quot element 39 s quot choice your frequency of work. I figured this would be a good test of the VNA. FOR ALL BAND HF ANTENNA EXCITEMENT Here is a fairly simple and easy to build multi band horizontal fan type dipole that can be constructed for all band operation from 160 meters up thru 6 meters or even higher. An Alinco 2m radio and tri band colinear for VHF. 6 meter zip cord edz 50 ohm feed. A Bar graph Display for the Optical SWR Meter If you don t mind supplying DC power to your Z Match Tuner SWR meter you may Nov 02 2011 A lot of sites explain in detail and just how to build home brew tuners but for SWL purposes you may not need a tuner to just quot listen quot in on the 10 and 12 meter bands. It might be handy for some use cases so I left it in the bundle. Good Documentation for the Dentron AT 3K antenna tuner SKU ADIB004EK7EG0HF Radio Antenna Tuner matcher for HF frequencies between 1. This will simulate the impedance of a vertical antenna. 8 30MHz 200W Yaesu FT 1000 2000 9000. Tuner enclosure is an LMB CR 421 Mouser PN 537 CR 421. This is the first of three DIY articles on building a 160 meter 3 8th wave inverted L antenna. Aug 17 2016 Inner cylinder made from 6 of 1 2 copper pipe O. The end result was a 7 band vertical antenna that really worked without resorting to traps or an antenna tuner. Dec 15 2018 Experience has shown that most external tuners and many internal tuners will tune 80 6 meterswith an antenna length of 22 30 feet. 25 ohm impedance transformation which would be found on an antenna like a short dipole or vertical antenna. I originally wanted an antenna that would not hit everything overhead while driving since it was to be installed on a van. Modifications to the Dentron Super Tuner 10. That is 2 full wave lengths on the radiator and 2 full wave lengths 6 feet above the earth ground counterpoise and that antenna only out performs the coaxial dipole by maybe 6. My first contact was with WN VJQ May 16 1955 at 6 40am on 80 meter CW with a 5 9 9 signal report. I inserted a 3ft piece of wire into the RF socket of the Power Meter to act as an antenna. I looked at some of the various web sites and still did not get a single idea as most of the designs were attached to trees houses or towers. A very nice homebrew antenna tuner from the 30s or 40s. 8 to 30MHz and are available with a wide range of features depending on the model. Transmitter power required for matching may be as little as 4 60 Watts and matching settings are automatically stored in memory for instant recall when the same frequency range is selected later. I use 4 full wave lengths on 75 80 meters. tested with ordinary WiFi router access point . Homemade Antenna Tuner Homebrew Micro Paddles Homebrew SGC SG 237 Control Box QRP Power Meter and Dummy Load Super CMOS Keyer Longwave Operations Ozarkcon 2008 VLF Presentation Microwave Activities Military and Government Equipment RT 1248 WWII UHF Radio BC 696 Aircraft Transmitter under construction R 1307A GR Rycom VLF Receiver DU 1500L antenna tuner User s Manual ARRAY SOLUTIONS 2611 N Belt Line Road Suite 109 Sunnyvale TX 75182 USA 1 214 954 7140 office 1 214 954 7142 fax For example on roller inductor manual tuner I can never obtain better than a 2. The 16 meter portion of the antenna is a plus for me because I wasn 39 t able to get on that band before with no room here not even for a loaded 16 meter dipole. 2 Effectively almost any horizontal antenna configuration for 160 meters is going to be a high angle The op does not understand how antenna 39 s works is stuck in the CB radio and won 39 t listen to reason. From David N5IZU Choose from manual and automatic tuners in a wide variety of power outputs from 200 watts to 2 500 plus watts Our antenna tuners will tune all frequencies from 1. 4724 antenna switch 175 281 speaker 9406 6 meter ssb adventure radio 150 9200 mulitband transceiver qrp 145 with boards for 80 40 20 30 17 15 10 meters mfj 949d tuner 125 west mountain wmt 58012 1288 rig blaster 150 Jun 09 2015 HF 8 band Fan dipole multiband antenna 160 6 meters with Balun Product Description The 5 element fan dipole works very well at covering all the bands 160 6 meters. As a matter of interest we use the Windom BUXCOMM model 802134 up to 2 meters 146 MHz . schemas on6mu_6meter_verticalantenna. After having marginal results on 17 meters using my Alpha Delta DX EE with a tuner I put up a resonant dipole. net homebrew topics A selection of various homebrew items. This design also allows me to maximize the amount of antenna that I can fit on my 1 2 acre lot an 80 meter loop is only 72ft on a side vs the 135ft overall length of an 80 meter dipole without Before we get into the actual antenna assembly let 39 s look at a few pictures illustrating my installation. com Sep 9 2015 6 Meter 5 8 Wave Vertical Antenna Project by G3JVL I have a 6 meter yagi setup that uses a hairpin match but since I have a tuner capable of 50mhz should I bother trying to use the hairpin match I have to adjust it since right now the swr is too high for the SSB portion only part I will care about. No heavy coax or inline traps in the antenna line like the W5GI or W3DZZ . Aug 05 2020 Building a 6 Band Vertical Home brew antenna based on DX Commander DX Commanders are available at https www. Distances of 30 miles using cw is usually the rule and 100 miles or more are common. Hustler 6BTV 6 Band HF Vertical Antenna and DXE Installation Guide Packages are trapped vertical antennas that provide an omni directional pattern. My KAT500 stays in bypass mode against the R6000 on segments of 6 10 12 and 15M cuz the tuner likes what it sees. 7 Meters Off Center Fed style antenna provides 7 band operation on 80 with a tuner 40 20 17 12 lower 10 and lower 6 Meter bands without a tuner. A QRP fiend not friend acquaintance of mine also gets major use out of his MFJ 16010 I second the opinion of souterrain . The antenna is capable of operation on 10 80 meters. The original goal was to throw up a wire that would do 160 meters and with the use of a tuner be able to make contacts on other bands. Jan 06 2014 To get the best power transfer into an antenna tuning is required. My homebrew antenna tuner is capable of handling 100 watts if I need to use it with my IC 7200 XCVR. I originally uploaded this video to my Survivalist2008 YouTube channel in 2014. I use this antenna on all bands 40 through 10 tuning it with an MFJ 971 T match. Author Menris Malamuro Dec 29 2018 MFJ 1836 Cobweb Antenna MFJ 1836 and MFJ 1836H. Jun 20 2009 This Antenna Tuning Unit also incorporates a 50 ohm QRP dummy load power meter 1 or 10 Watts full scale and SWR meter I have used this ATU for a variety of longwire antennas including outdoor antennas of various lengths and much shorter indoor attic antennas. For some magic numbers on random wire antennas try the following TheBUXCOMM model 802134 Windom is an antenna that enables operation 80 through 6 meters without an antenna tuner. As erected in 2007 January the center is 20 ft 6. The radials should always be the same length but I have found that you can vary them about . May 28 2008 An easy beginners activity is building a ground plane antenna for 2 meters using a UHF aka SO 239 panel mount socket. Now I can work on the 10 15 20 40 and even on the 80 meters band without the use of a tuner. Johnson called the Matchbox Tuner. If a longer antenna is desired the provided antenna can be lengthened. The main purpose of constructing this omni directional antenna is to provide a multi band antenna which performs well from the lowest frequency band for which it is designed all the way through 10 meters. this equation yields good starting points you may have to lengthen or trim your antenna to achieve Great deals on Radio Communication Tuners. I wanted something a bit smaller and lighter than my LDG YT 100 for use with my Yaesu FT 817ND. New Hex Beam from MFJ delivers solid gain and directivity on 20 17 15 12 10 and 6 Meters in a low profile package that will have your pocketbook and your neighbors smiling When it comes to lightweight directional HF antennas the MFJ 1846 Hex Beam tops the list for its low profile footprint solid construction and DX snagging design all 160 Thru 6 Meter All Band Doublet Antenna 102 ft. Right now I currently have a dipole with a 1 to 1 balun between the 2 legs and each leg is 19 and 1 half feet long. The internal Antenna Tuner has two antenna quot Tuning quot the antenna is done by keying the transmitter at low power setting and observing the SWR meter or antenna current meter while adjusting the tuning capacitor. By varying the length of the 450 ohm ladder line feeding the antenna we can achieve an SWR of less than 2 1 on all frequencies on all HF bands with the exception of the lowest part of 80m. As for changing SWR my R6000 did that on 20m in the rain until I drilled another drain hole in the 20m trap cap. The G5RV antenna is similar with the exception that a length of open twin wire feed line or ladder line is used to create a broadband feedline balun before connecting to the coax. For higher power the designs can be scaled remembering that the bigger it gets the lower the frequency for the same geometry. The Antenna Tuner is a 1977 HeathKit HFT 9 a small QRP size tuner of the Cap Coil Cap double quot L quot design. I am very pleased with it it works quite well locally and on DX. The first big gain antenna was a two element quad for 10 15 20 meters. HF 6 Meter Mobile Antenna Tuner w Wattmeter. 5 Band 1 2 wave rotatable dipole for 40 20 15 10 6 meters This is the compact dipole used for HF communications on the set of the ABC Television show Last Man Standing with Tim Allen. Dec 11 2016 My antenna of choice for portable ops is 60 of old 18 separated speaker wire 30 of haphazardly placed counterpoise of similar wire and a homebrew L network tuner. The first item on the list is a 10 m Mobile antenna or more specifically 2 of them. Connect the 5000 ohm resistor across the binding posts. The 2 days ago Welcome to BeerSmith Home Brewing Radio a talk radio show streaming 24 7 interviews on making beer with top home and professional brewers from around the world. The horizontal leg of the antenna on the bottom should be 2 to 3m high 6 6 to 9 10 high enough for humans and animals to walk under. 6 meter dual polarity cb mod a cool idea by kd4wpc 6 meter rotateable delta loop. The feedline is now a multiple of a half wave 60 to 70 foot and connects to a full wave high impedance antenna 100 to 140 foot . Some hams think SWR is a measure of how well an antenna quot works quot . Portable 3 Element 2 Meter Beam Antenna. channels for export and 10 meter ham band. Nov 25 2016 I have a 92 foot End Fed that uses a 9 1 homebrew Balun at the feed point. Two tone Intermodulation Distortion Products at least 30 dB down from the level either of the two tones. 811 in Dielectric made from 4mil Polyethylene clear plastic sheeting from Home Depot. It incorporated a pair of 807 39 s in the final putting out 100 watts. Jul 03 2020 On 40 meters the analyzer says SWR of about 15 1 which while high is well within the range of the MFJ939 tuner. My antenna is a quot maypole quot dipole arrangement 80m 40m and 20m half wave dipoles fed with a single coax feedline. Wire antennas are a great simple way to work 40M and 80M rather than a noisy vertical antenna that requires horizontal radials. For example you might find EA4NZ 39 s Web page informative Ref 6 . Ben was a not real active novice very near by. Folded Marconi Tee Antenna 8 10. Click Here for free End Fed 6 40 Meter Matchbox Antenna assembly instructions tuner required It is fed with 72 ohm coax running down the wall through the same hole in the wall as the 20M coax into my shack. The antenna output is the red colored socket on the left end of the heat sink. build a 2 meter 5 4 wave antenna the quot ll cool j quot 2 meters for a song 2 meter collinear by m3fvb new 2 meter copper tubing slim jim by ke5fxu reduced size 2 and 6 meter yagi 39 s 6 meter rotatable delta loop 6 meter zip cord edz 50 ohm feed 6 meter halo loop 6 meter edz signal squirter 6 meter 5 8 wave vertical Homebrew 40m cobweb antenna 8 pounds blend in with your surroundings while standing tough against nasty weather. I ll try not to get too much into mathematics and I ll also try to squash a few myths. A so called random wire antenna is an end fed antenna. Your SWR should be less than about 1. In a pinch a 2 meter 5 8 mobile antenna can be used on 6 meters I have 1 4 on 6 meters is 55. I plan to raise the antenna by several meters this summer. Sidebar This antenna is very different from antennas fed with coax which require a tuner in the shack. I have the Hy Gain AV 18VS vertical which I have been using for 40 10 meters. Frequency Coverage 10 40 Meters 10 80 Meters. MFJ 939K MFJ 1623 Window Balcony Mount 30 6 Meter 200W Ham Radio Antenna w Tuner. The page describes a Windom antenna with a 6 1 homebrew transformer. The Ameritron ATR10 antenna tuner used a network functionally identical to the Johnson Matchbox series. For a HF cross needle model supporting 3 kW PEP the price is ranging between 330 MFJ to 600 Ameritron . 8 1 and about 2 1 when output power is peaking on side band. 2 Check to see that a good SWR can be obtained in or near 160 m. A couple of sheet metal screws and some scotch tape The antenna This 10 160 meter tuned horizontal loop antenna is fed with 450 ohm ladder line all the way into the ham shack to an Palstar AT1500BAL balanced line antenna tuner. This shortened easy to build vertical with no radials is made from surplus military camouflage poles. All of my HF antennas were homebrew dipoles resonant in the phone portion of the bands. This omni directional multi band antenna performs well from the lowest frequency band for which it is designed all the way through 6 meters if your tuner and balun will handle that band. all band doublet covers 160 6 Meters with balanced line tuner. 5 uHy inductors 36 T 20 What is an Antenna Tuner An antenna tuner coupler is a more correct term is an impedance matching device which minimizes mismatch loss maximizes power transfer . Hardware Stainless Steel Mar 08 2014 A Miracle Whip Inspired Antenna Tuner. However you could place an element in front of the 10 meter element for six meter to get a much better swr reading and that would eliminate the higher swr and the need of an antenna tuner. That is the way they are normally connected. 238C 2KW High Power Antenna Tuner Miscellaneous. 28 meters and a vertical component of 30 feet 9. Jul 30 2020 Available for 40 15 Meters or 80 Meters. Building and experimenting with antennas can be an interesting part of the radio hobby. With those caveats given I tune for minimum brilliance on the LED get on the air and make QSOs. However this isn 39 t a real problem since the auto tuner in the TS 480SAT easily handles that much mismatch. 6 Meter 1 4 Wave Antenna by Mike Fedler N6TWW December 28th 2009 Please note that all of the small pictures shown in this article are backed up by larger images so that you can get a better look at the details if you so desire. The half wave line repeats the high antenna impedance at the tuner. I use an MFJ 813 QRP SWR WattMeter calibrated model and run 1W commonly. One of the antennas is a dual band quot model 2B2040LQ quot that covers 20 and 40 meters. It is hand built it works costs less than something with MFJ on it MFJ 903 six meter tuner lists for 69. This is a HOA End Fed Long Wire wire antenna that will cover all bands from 160 to 6 meters including the WARC Bands as well as 60 meters and MARS frequencies. Dec 23 2017 Using an outboard tuner you could use an 8o meter loop up in the trees as high as you can get it. If used with an antenna tuner more bands are achievable. The AT 7000 provides automatic antenna tuning for your Icom IC 7000 and some other Icom radios that are AH 3 or AH 4 compatible across the entire HF range plus 6 meters. The mounting in the middle is with 5 8 electricity pipe. The antenna mast and 6 2 meter quad antenna fit into a 6 quot X 6 quot X 72 quot box that weighed approximately 20 pounds. Alternatively by tuning for maximum receiver noise level there should be a sharp increase in the noise level when the antenna becomes tuned to the desired operating frequency. 4 48 quot fiberglass sticks. Technically speaking all of these names other than Transmatch are misnomers. 73 Ed N5EI The only window in my shack faces the front of the house. The original antenna was designed as a moderately short antenna for the 10 meter band. RTL SDR matching 9 1 long line antenna with 6 meter long RG HF 6m Mobile Antenna Tuner with Wattmeter Covers 1. My antenna system consists of an end fed 130 foot 39 meter wire 20 to 25 feet 6 to 7 1 2 meters off the ground. It was mounted on a homebrew 20 39 tower built from wood 2x2 and lattice cross bracing. In most cases only two connections are provided. An inch and a half diameter inductor and 150 pf variable capacitor fit nicely into a re purposed computer monitor A B switch box. The L Network Tuner was chosen to give a simple and efficient solution with the bonus ability to switch the capacitance to the input or output given a low or high Z load. And will tune just about anything. Here are a couple of pictures I took this morning showing my current Home Brew base antenna. For highly mismatched systems the tube amplifier will not be able to tune because the mismatch is too large and an additional tuner is needed. 2 days ago The claim was that they had that much wire wound up in them. The tower was 20 feet tall and mounted on the roof of our first single story house with guys about half way up the tower. I prefer to use a separate custom designed tuner for each band and each antenna. 5 MHz Aircraft Search amp Rescue. The following are 2 photo diagrams for 6 meters. These are made so you can put them on your car truck and operate on that one band while you drive or ride with riding being preferable for safety s sake . Table 1 Parts List indoor amp outdoor units. Longer antennas or higher frequencies need less inductance and shorter antennas or lower frequencies will need more. The design of this tuner matches the unbalanced 50 ohm impedance of the Shack Equipment to the balanced feed line impedance of the Antenna System. 40 meter qrp ssb transceiver portable qrp vertical antenna mfj qrp antenna tuner. Antenna matching networks are known by names such as Transmatch ATU antenna tuning unit antenna matcher and antenna tuner. I built this in two days from items I had in my junk box. Requires Optional Patch cable with PL 259 connectors for hookup to transceiver. 1 W8010 80m 40m 20m 15m 10m 1. I achieved this by adding loading coils across the 10 meter switches. 6 meters is a large band at 4 MHz wide but addition to the connections to the antenna wire and coax the instructions suggest MyAntennas End Fed Half Wave Antenna for 80 10 Meters Bottom Line The EFHW 8010 1K provides an easy to deploy antenna that can be operated on all HF bands except 60 meters with a low enough SWR to be used without an antenna tuner on most bands. Once the meter is removed and the end of the cable plugged into the radio this is what the radio will see. Uses elevated radials for higher gain. 2 MHz m 15 MHz or connect the side opposite the antenna to the system ground return . By comparing them you should be able to construct a tuner to your own particular requirements. No one will even know it 39 s a vertical antenna. Part list 1 PVC pipe 1 2 quot in diameter and 12 quot or so long. an end fed antenna into the range where most antenna tuners can produce good performance. Thus in a way it was an antenna tuner but it was never called that. I have an MFJ 902 6 through 80 meter antenna tuner. As an alternative to the automatic antenna tuner you can obviously make use of a manual tuner of any variety with bypass switch for auto tuner use if you like. Sep 15 2002 The 43 foot 10 160 meter Multi Band Vertical antenna is a freestanding vertical element with no traps or coils. It does NOT tune the antenna Old R. Other 6 Meter Antenna Projects of Interest 6 METER 5 8 WAVE VERTICAL ANOTHER 6 M J POLE DESIGN Archives of the quot Wayback Machine quot 6 METER SLIM JIM 300 OHM METRIC 6 METER quot SLICK SIX quot DIPOLE 6 METER DUAL POLARITY CB MOD A quot Cool quot idea by KD4WPC 6 METER ROTATEABLE DELTA LOOP 6 METER ZIP CORD EDZ 50 OHM FEED 6 METER HALO LOOP 6 METER EDZ SIGNAL MultiBand Vee Beam Six Band One Element Beam 20 meters thru 6 From LA0HV Mystery Antenna 80M thru 6M John P Basilotto W5GI. com The No Tuner All HF Band Horizontal Center Fed Antenna is our old friend the 80 meter halfwave dipole dressed up a bit. This antenna covers 80 to 6 meters with low feed point impedance and will work with most radios with or without an antenna tuner. 8 MHz Multibandantennes en tuners Hans Remeeus PA1HR Palstar AT1500CV Remote control L match aerial Tuning Unit Realization of a coupling box by Patrice S match VEC 603 6 Meter Antenna Tuner General Information The VEC 603 6 Meter Antenna Tuner for The Magic Band gives you low SWR with practically any coax fed antenna mobile whips dipoles verticals vees random wires beams. Theory said this should work 10 20 meters. Measurement results for the S11 or SWR a. For example in the IARU HF Championship contest I was able to work 20 stations on 15 meters I was able to work pretty much any station I was able to hear. It comes with a short coax jumper to connect to the transmitter. Linear amplifiers will need a high power wide range antenna tuner. com Workman Workman Electronics Workman Electronics Products WEP CB CB Radio The top antenna wires share 10 feet of two of the guys and the bottom wires are supported by the guys. Ideal for backpacking and travel. It takes more than one kind of shovel to perform a variety of jobs My 2 Meter 6 Element home brew Yagi Original Poster 7 points 5 years ago. 0 m and the longest wire is 35. If you have an antenna analyzer you can test the antenna at your workbench to check that everything is properly connected before going out into the field. Can be operated on non optimum bands with an external tuner. can find more information regarding my homebrew amateur radio projects in the menu above. The Feed and Phasing cables are added. Jul 04 2020 Using an antenna tuner just hides the issue from the transceiver. I hooked it up took 15 seconds to tune to my antenna using the VSWR indicator on my rig and got a VK4 a few minutes later. 20 Meter Loop My next attempt was a 2. 7 mtr total length installed at an angle of 30 degrees over a selection of ground types. But if you have a 1 1 SWR fetish this system might not be for you. Jan 03 2010 My MFJ 6 meter sideband rignot workin really. The matchbox handles 100 watts of power. In other words our Portable Vertical Antenna for 75m and 40m makes up a compact 28 feet high antenna. 5 to 28 ft high 20 meters and above or 80 meters and above Radials required Tuner required Remote tuner at the base is best Dimensions Of The Finished Antenna You could do without a antenna analyzer if you build your six meter folded dipole antenna system with the following dimensions gt Six meter folded dipole made of 450 ohm ladder line 16 7 strand copper clad steel wire 8. A Z MATCH TUNER FOR 10 THRU 80 METERS THIS TUNER ONLY HAS 2 CONTROLS AND WILL TUNE ALMOST ANYTHING I really didn 39 t need another antenna tuner but I had the parts in my junkbox and figured I 39 d build a homebrew Z match tuner just for something to do. Aug 24 2019 80 Meter NVIS Antenna Don 39 t Get Hung Up on Theory Watch the following video to see how to build and erect a basic 80 meter NVIS antenna. It will match an amazing range of antennas and impedances far greater than many other Here is the pattern of the 160 80 meter antenna on 3. At 10 meters the antenna is about 4 wavelengths so we shall find 8 lobes. An antenna or dummy load may be connected to the SO 239 coax connector marked BYPASS COAX The antenna switch on the BYPASS position will bypass the turner and allow the MFJ 941B to be used as a SWR meter or wattmeter. Most people use the antenna tuner directly after the transceiver it is only logical that the SWR does not become better It is NOT an ANTENNA tuner but only a CABLE tuner Remember a dummy load had an SWR of 1 1 1 but was a terrible antenna the same counts for an ATU. This kit would be great for the first time builder. Some TIPS on measuring VSWR and troubleshooting M2 Antenna Gain dBi vs. The closer to 1 1 your SWR is the more accurate it will be. 5 1 SWR across the 10 meter band. Norwalk Electronics guarantees no single other 6 meter omni directional antenna in production can outperform this 5 8 wave. Here we have collected some links to building instructions for 11m antennas on the Internet. Fed by ladder line into a balanced tuner. The antenna hangs in zig zag between some trees. New 160 Meter Transmitting Antenna. With a good antenna such a rig is all that is needed for far reaching contacts. However by tying the two feedline wires together at the tuner and laying down a counterpoise we were able to feed the antenna as a top loaded vertical on 80. On my roof I 39 ve laid out three radials of ten meters long the aluminium edge around the roof is used as counterpoise and there is also a three meter copper rod into the earth. 80 meter band could even be tuned but is useless in term of radiation efficiency with my current antenna just useful for RX. New for 2018 AT2K gray front panel. December 14 SEA 1612 Fast Automatic HF Antenna Tuner SEA 1612 Automatic Antenna Tuner For Sale The SEA 1612 Automatic Antenna Tuner is a very unusual tuner. The antenna is resonated on the CW portion of the 40 meter band. This is a real flagpole multiband vertical. Voltage Probe Antenna Preamplifier VE7BPO High Dynamic Range Preamplifier G3SBI 1. Very sensitive meter thus can read power less than 50 mW within a few cm from antenna. When fed with 600 open wire line the dipole as expected was a reasonable choice for all bands except 160 meters and perhaps a bit Operates 10 thru 11 Meters Covers far above and below the traditional C. You will need a strip about 7 inches wide and 6 feet long. 4 Aug 2004 used a couple of prototype 55590BA Battery adapters to power the PRC 104 and about a 1 foot long BNC cable to connect to make the The G5RV antenna is similar with the exception that a length of open twin wire feed line or ladder line is used to create a broadband feedline balun before connecting to the coax. It must be understood that an antenna tuner will be necessary to use this antenna. 1 The L Network Tuner was chosen to give a simple and efficient solution with the bonus ability to switch the capacitance to the input or output given a low or high Z load. 8 to 60 MHz New Now covers 6 meter band and has antenna bypass Switch Dont go mobile without it Dont leave home without this mobile tuner Have an uninterrupted trip as MFJ 945E extends antenna bandwidth and eliminates needs to stop go outside and read just your mobile whip. In most cases they are almost the same but not exactly. A flimsy and rather poorly made plastic cover protects the tuning capacitor and its motor and the coupling coil from the elements if the antenna is mounted outside but it seems designed more to let rain run out than to keep it out in the first place. Leaving S1 in position 4 is useful when the antenna tuner is being adjusted. Big 2 1 8 quot bottom section tapers at the top to 3 8 of inch for flexibility strength and wide bandwidth. Two Ham Radio antenna tuners for sale Heathkit SA 2060 antenna tuner scratches on top but otherwise good condition 200 Homebrew antenna tuner built into a Collins case to resemble Collins S line equipment 95 provides full and semi automatic antenna tuning across the entire HF spectrum plus 6 meters at power levels up to 100 watts. End Fed Half Wave Antenna amp Tuner. Get it Wed Aug 19 Ver2cal 39 Wire 39 Antenna 39 Actually 39 a 39 ver2cally 39 orientated 39 resonate 39 1 2 39 wave 39 dipole 39 with 39 the 39 earth 39 being 39 the 39 return 39 half 39 Due 39 to 39 poor 39 ground 39 conduc2vity 39 a MFJ 969 Amateur Radio Deluxe HF Antenna Tuner w Built in 4 1 Balun 300W 6 160 Meters. 15 hours ago WWV at 10 MHz and 5 MHz had dopplers at near 1 Hz lower doppler frequencies just following the test where they are normally only 0. Ran inside to the shack fired up the power supply then the radio. If the legs slope down at the minimum 120 degree angle you need about 60 feet of ground space. The link coupling might be a weakness but a simple antenna tuner can be added for full control of loading and harmonic suppression. Automatic wire antenna tuner 3. This tuner isn t something you can buy so you ll have to Thank you for asking your question on JustAnswer. West Toronto Ontario M3N1V7 Tel 416 667 1000 sales radioworld. Jan 24 2019 The random wire antenna is probably one of the least expensive easiest and cheapest HF antennas to use if you have a tuner and you want to get the quot most quot out of a length of quot random quot wire without having to pull out that calculator doing the math getting the center insulator built or bought running the feedline and all the rest that goes with putting up a more elaborate antenna. michael w3ts 72 8 hf single coil z match atu peter linsley g3pdl 76 17 yalatu yet another l atu peter brodribb 76 21 a large loop antenna fed with ladder line allows for good performance on a wide range of frequencies using a single antenna. antenna including the feed line and a one watt input to the transmitter power amplifier be used. Several Universal ATUs for the Whole Amateur HF Band. Several other wire and coax loops were tried and the results are shown on page 4. For the 160 meter module it normally also includes a receive antenna jack. Registered Company Number 01293430. With a tuner it may be usable on the 80 meter band depending on metallic and other objects near the antenna 80 meter operation is easier when expanding the antenna to 2 2 coils. MFJ has the 969 tuner that does HF 6 meters. One separate dipole for each band needed. To avoid the use of an antenna rotor the assembly is oriented from the ground by a nylon cord the antenna rotates on a bearing drum washing machine. The Tuner Fallacy It is often believed that a tuner actually quot tunes quot a non resonant antenna tricking it into behaving as though it were resonant. Constructed and designed primarily to be most efficient on the 6 meter band this antenna will also tune all the way up to 20 meters with reasonably good results when used with an antenna tuner. Unfortunately activity on 80 Meters was very low at the time we tried. 4 Band 40 20 17 12 10 amp 6 meters. Apr 18 2020 While tuned up on 40 meters I had a quick QSO with a station near Chicago from here in southeastern Pennsylvania with 3 watts. In the drawing above it is shown for just four bands 80 thru 10. Nov 09 2015 K4VSI My 70 ft Cobra Lite with 50 ft ladder line with a 4 1 balun performs extremely well on 80 40 meters with very low swr without an antenna tuner. The rear panel has SO 239 Balanced Line Wire antenna jacks. Band changes are made by collapsing a specific number of sections. However you can build it Most people use the antenna tuner directly after the transceiver it is only logical that the SWR does not become better It is NOT an ANTENNA tuner but only a CABLE tuner Remember a dummy load had an SWR of 1 1 1 but was a terrible antenna the same counts for an ATU. The ATR 10 was a single ended tuner with an output balun. Check out Andy 39 s UU1CC 6SN7 transmitter for real artistry in homebrew wood work and photography. It is matched with the built in KX3 tuner not only on 15 but on 17 and 12 as well. Fast amp Free shipping on many items With the antenna now adjusted for 160 and 80 meters VSWR over the 7. I have a QCX transceiver built as a kit which outputs about 3W of CW on the 30 meter band and is mostly used for portable operations. Probably better to homebrew a custom tuner for your situation. The antenna needs NO tuner for 21 and 28 MHz ok SWR is not 1 1 but may be acceptable and with tuner loads in 20 17 and 12 meters. 6 MHz but with an antenna tuner can be used on all bands including 160 meters. In the mean time I changed my 3 bands wire for a 5 bands wire. The boom length is a very short 40 inches. that support a 10 1 VSWR from 6 1000 ohms are more suitable for use with this type of antenna. I personally use the MFJ 998 1. The antennas design frequency is 40 meters. However like to have another one connect to my second amplifier. Click Here for free End Fed 6 40 Meter Matchbox Antenna assembly instructions tuner required . 1 day ago Amateur Radio satellite communications looks like loads of fun to me. Something about Antenna Tuning Units HF. It can be used on all bands from 160 to 6 meters. The 30 meter coils consist of 6. This Windom Handbook is the most read Windom antenna handbook and the most duplicated document by both Amateurs and commercial builders. The MFJ 969 Antenna Tuner covers all frequencies from 160 Meters thru 6 Meters including the quot magic band quot the widest matching range of any full featured antenna tuner. The telegraph key plugs into the blue marked phono plug socket on the right of the aluminum heat sink. I decided to go with DU 1500L antenna tuner User s Manual ARRAY SOLUTIONS 2611 N Belt Line Road Suite 109 Sunnyvale TX 75182 USA 1 214 954 7140 office 1 214 954 7142 fax With my 6 meter random wire and two radials of about the same length I can tune from 40 to 10 meters without any issue and 100W SSB are easily handled. Jul 15 2015 Figure 6 Produced with data generated from 4NEC2 antenna modelling software for an antenna wire of 18. The ATU is the joker in our system. When you shorten a antenna that is designed to work on another My station has a mix of commercial and homebrew equipment. For the on going 2007 ARNSW Homebrew Group Challenge work I needed a simple 80 metre antenna. After Flavio explained the basic parameters of the magnetic loop antenna two hours later I had scaled the antenna to cover 6 12 meters. The NB6Zep antenna is a simple inexpensive wire antenna easy to build that will yield excellent results on all bands. It was great to see the LED go out on 40 meters. Coax was connected and run to the operating position in a tent. Since the radio I 39 m using with this antenna the Yaesu FT 817ND has general coverage receive as well as ham transceive I need a wide range tuner especially if I want to use it to receive AM broadcast. The system was tested using a 100 W transceiver connected to a 90 ft 450 balanced transmission line and a 120 ft dipole antenna 30 ft above ground. It seems to work better with the balun than without though the gurus like W7EL say lately in some postings on rec. For example on the 41 meter band approx 7 MHz a 1 4 wavelength wire would be 32 feet long. The ARRL Guide to Antenna Tuners has an excellent discussion on balanced vs. One for 160 through 6 meters the other for V UHF. It has gain and wave angle comparable to a full sized ground plane antenna with radials . 5 to cover mosly the CW and SSB portions of the band. The ATR10 Ameritron was a companion to the AL84 and was designed as a companion bandpass 600 watt antenna tuner. The circuit proved so popular that it was also featured in generations of the ARRL Handbook from the 1970s. A few days ago is saw that the rope from the overhead boom supporting the the six meter yagi had broken. COMPARED TO A LOW HANGING HORIZONTAL ANTENNA. Homebrew 40m cobweb antenna 8 pounds blend in with your surroundings while standing tough against nasty weather. 90 MHz This antenna is tuned by the following procedure 1 Put up the entire length of wire and the 4 1 balun and resonate it to the upper end of 80 meters by lengthening or shortening it. 60 meters was actually a bit worse VSWR gt 10 1. Homebrew T Match Antenna Tuning Unit ATU One of the rewards of being a Radio Ham is building your own equipment and actually getting to use it. Richard Lau at Nibong Tebal South of Seberang Perai Penang. 00 To see what the results with a real antenna would be a 100 foot long dipole 40 feet in the air was analyzed using EZNEC to find its input impedance and TLA to find the transmission line losses and voltages . As you see the antenna is a sloping center fed doublet. But height is very limited above 70 feet. This process uses a load to match the transmission line to the antenna which controls the standing wave ratio SWR . TUNES ALMOST ANY ANTENNA YOU CONNECT IT TO Recently after building my SW 30 from Small Wonder Labs I found out that the little BLT tuner I had been using for my QRP operations would not tune my 40 meter Extended Double Zepp 178 39 centerfed with 450 ohm balanced line on 30 meters. 6 METER BAND G5RV After much thought and encouragement from friends we proudly announce a new mwmber of the K4TR family of antennas. VHF UHF Portable Yagi Uda Antenna Design 2 Meter Beam Antenna Dishes for Amateurs KA0Y 39 s 50 39 Dish It 39 s a big one Dual Band 2M 440 MHz Walking Stick Antenna Antenna Page VHF UHF designs Home Brew dual band mobile antenna A 1 4 wavelength resonator for both the UHF and VHF bands Antenna EiRP calculator Calculate Antenna amp Cable losses The antenna behaves like just like the common dipole but fed in one end . Congratulations on selecting the LDG AT 7000 tuner. With a gain of about 16dB on 160 meters it is very inefficient. For experimental operation on the 6 meters range some antennas for others bands with ATU can be used especially if a radio amateur only starts to work on the quot magic quot band. Simple HF ATU on Lengths of Coaxial Cable. alu box of 200mm X 130mm X 70mm. So I didn t bother to install the BNC jack and I didn t install the associated relay either. quot Tuning quot the antenna is done by keying the transmitter at low power setting and observing the SWR meter or antenna current meter while adjusting the tuning capacitor. NOT different from any other impedance matching circuit. This is not as good an antenna as a dipole or doublet in my opinion but it s a workable antenna. I mostly seek to work 20 40 80 meters and occasionally 160 meters so this seemed like the one antenna that would most likely accomplish my goals within a reasonable budget and fit within my rather small suburban back yard. Since things seem to be happening on 10 meters it 39 s time to build a transmitter and get up there. So here is the problem the tuner will NOT tune the antenna on 40 meters or on 15 meters. At that point I had a decision to make either make more dipoles tuned for data or buy an antenna tuner. Fortunately with the addition on an antenna tuner in the radio shack it is possible to reduce the SWR seen by the transmitter to 1 1 anywhere in the band. In production since early 2004 No tuner or counterpoise required uses just one wire A manual or automatic antenna tuner is required for all CAROLINA WINDOM Antennas. Here 39 s a 6 meter metre for my European friends lightweight Moxon antenna I built. Welcome to the Amateur radio Manual antenna tuners page. It only requires connection to the 2 motor wires. Dec 15 2018 Portable End Fed 40 6 Meters Poly Stealth Dipole Antenna Go to amazon. It would be more convenient to have a real SWR meter or antenna analyzer if you do a lot of testing but for a quick antenna check after a mobile install or whatever the 5 CB meters work OK. This simple antenna will work all bands 7 MHz and above. 6 meter slim jim 300 ohm metric 6 meter quot slick six quot dipole 6 meter dual polarity cb mod a quot cool quot idea by kd4wpc 6 meter rotateable delta loop 6 meter zip cord edz 50 ohm feed 6 meter halo loop 6 meter edz signal squirter 3 element beam for 6 see 6 meter loop below also on same page 6 meter hentenna k5uss 6 meter copper tubing j pole 40 meter DSB project Bill Meara Homebrew 0 December 31st 03 08 49 AM 40 meter DSB project Bill Meara Homebrew 0 December 31st 03 08 49 AM FA Ugliest homebrew linear project EVER Ebay ad but ya gotta see this GS Homebrew 12 December 31st 03 12 51 AM FA HUGE Homebrew Antenna Tuner 813 Tubes 3KW Power Meter 6 amp 2M PowerSWR All Bands Vertical Antenna HF homebrew A few months ago my friend 9W2 AYR Anuar and I visited my new friend 9M2LR Mr. Unit measures 5 1 16 quot high x 8 quot deep x 18 1 2 quot long. More information Homebrew antenna tuner prototype a modified version of the PA0FRI matching network. It should also be noted that a 160 through 10 meter antenna will be slightly less efficient overall than an 80 through 10 meter model. The result was a tuner that will work 10 thru 80 meters and handle up to 100 watts of RF. The mAT K100 is an automatic antenna tuner specially designed for modern ICOM and KENWOOD HF transceivers. A 9 39 long Ringo is 6 meters 50 MHz. This is the homebrew Murch style transmatch I built to work with the new K7DYY AM transmitter for 160 and 80 Meters. Since I removed the 100uA fron one of the swr meter 39 s to use as signal meter on the HF transceiver beeing built this is the right project to use in it 39 s place. All this testing is with the SA 2365 Antenna switch disconnected. There is even a to vary the quot tightness quot of coupling between the link and the primary resonating inductance in antenna tuners conductor of the coaxial cable has a value of approximately 8 pF per meter of wavelength at . The connection would be radio gt SWR meter gt antenna tuner gt linear amp. It is important to note that For example on roller inductor manual tuner I can never obtain better than a 2. F5RDS remote antenna tuner An home made remote antenna tuner project that with a 6 meter random wire and two radials of about the same length can tune from 40 to 10 meters without any issue. I really don t like the name antenna tuner. I did the scan with a display set to Smith chart. Jan 18 2011 This home brew antenna tuner was designed and built circa 1950 by my uncle and mentor W8MAS Bernard Parafin now a silent key. 2 1 swr on 20 flat on other bands. Figure 6 432 MHz version of a hairpin tuner. quot I can t work 80 meters I don t have a good 80 meter antenna quot 9. This homebrew legal limit antenna tuner is based on the famous quot Ultimate Transmatch quot introduced by the late Lew McCoy W1ICP. The lowest parts are acting as a small capacitor against ground. Yet I am able to operate 80 10 meters using the LDG IT 100 automatic antenna tuner. Nov 04 2011 The Arduino board is a fantastic tool for rapid prototyping and can help radio amateurs in lots of homebrew projects. NICE Nearly completely flat over entire 40 meter band and over phone portion of 80 meter band. Here you 39 ll find links for antennas tuners covering hf vhf uhf. With an appropriate radial system this version provides very good performance on 20 6 meters and will also work well on 30 and 40 meters with inverted L This excludes 60 meters due to its 100 watt radiated power limitation and I decided to skip 160 and 6 meters because I never operate on those bands. Several close pictures of the antenna are provided in an effort to clearly show the quality of construction used. 50 mhz converter magic band using an NE602 612. Power handling 1200W SSB PEP 500W Carrier Max. There is room for a 140 foot long antenna and also other trees for even longer. A friend load me his MFJ 989C antenna tuner. 8dB gain over a 1 2 wave dipole. May 02 2016 Measuring only 3. 5 meters but many modern buildings will not be that high WE ALWAYS KEEP A VERY WIDE RANGE OF MFJ MANUAL AND AUTOMATIC ANTENNA TUNERS IN STOCK MFJ 901B Small 160m 10m 200W peak rated antenna tuner. I wanted 160 meters but did not want or need a separate receive antenna. Once the antenna was raised it had a horizontal component of 37 feet 11. END FED 6 40 Meter Multiband HF Antenna. The matching range on this autotuner is 6 1600 ohms so it s not surprising it had no problem with my antenna on 75 meters. The foto below shows me left and Nico quot The President quot IZ8KTL right near antenna tuner and FT 817 in P. Jul 12 2018 60 meters 8 75 meters 6 AA1TJ 50 Adams Chuck 6 Africa 12 Homebrew Tuner for Doublet Antenna. The commercial ones including the Johnson Matchbox are by necessity compromises. Optional Build a Balun and buy or build an antenna tuner. Providing a good ground connection for the antenna is important for good SWR. Thanks for stopping by I hope you enjoy the blog. If you 39 re into QRP you 39 ve probably heard of the Miracle Antenna. To transmit on 80 meters I have to use the entire 40M dipole coax and all as a long wire antenna with my entire 30 meter dipole in the backyard as a long wire counterpoise. If you want the best flagpole on the market today this is it. 4 GHz WiFi depending external antenna attached. 6 30 MHz with 40 39 wire 325 150 Walt AE4WD Alliance D 73 1 Dual Speed Rotator Controller box 120 vac uses 6 conductor cable 2 KC4SXO Bob Portable Emergency Tri Band Antenna Tri Band Antenna 2 mtr to 70 cm telescoping The Loop Skywire Antenna is a very effective design for DX. Twenty meters is shown in red 15 meters in blue 10 meters in green and 6 meters in violet. Antenna and counterpoise connections are stainless steel. Move the S2 METER switch to pos. Since I have the 238B L Match and thinking to use other tuning method. The antenna is calculated for a specific length usually 1 4 wavelength. Because of that the tuning coil and capacitor behave as a pi filter. 50 Mhz Dipole BUILD AN HF ANTENNA TUNER MAKE A HOMEBREW HF VHF ANTENNA TUNER It really isn 39 t all that difficult. 10 meters As a Technician you only have access to part of the band just tune your antenna properly again SWR meter is your friend. 65m and counterpoise 66cm from the above calculator. Privacy Policy Copyright 2004 Workman Electronic Products. 94 HP 4342A Utilities A problem also occurs on 40 meters with this antenna example. Unfortunately I could not find a T130 6 toroid so I used a T130 2 which would do the job too I read. Metal guys with egg insulators are best for a permanent EZNEC 10 Figure 3 Elevation radiation patterns and gains across different bands. Still trying to get the 80 meters section to resonate in a portion of the cw sbb. Instructions for Simple Multi Band Vertical This PDF explains the antenna and has tips for its construction. This antenna is handcrafted with materials carefully tested amp selected by Chris Ni4L for quality amp durability based on its intended use and price point a tuner transmatch matchbox it to tidy up higher SWR on other bands. Now remove the resistor from tuner and connect the antenna. There is no magic bullet antenna btw. 10 gauge enameled copper wire is used in the RF transformer wound for maximum efficiency on 6 meters. There is even a The AT 600ProII features two antenna ports with a front panel indicator showing which is in use and separate memory banks for each antenna. To tune the antenna an MFJ 269 SWR Analyzer was connected to the tuner input and the tuner adjusted for minimum SWR at the center of the operating band. My current G5RV antenna runs east west so the lobes naturally extend south north. Connect the counterpoise or ground wire from the antenna to the forward 1 4 inch screw and secure with a washer and wingnut. 4m and the feeder is about 60ft 18. Welcome to the Home of iPortable where we Manufacture high quality Innovative Portable communication equipment such as Radio Racks for Emergency or field use Field Antenna Analyzers for HF and VHF 6 Meter Band and our New Smart Tactical HF antenna . It works fantastic on 6 through 20 meters However I would like to also get on 40 and 80 meters. It s a great accessory for QRP rigs that lack an internal tuner or SWR meter. Standing Wave Ratio meters measure impedance difference from 50 . 39 General equation for half wave dipole length e 468 f where is lenath in feet and f is frequency in megahertz. We cut the element for the lower frequency and let Dec 12 2010 Now my NC20 project is finished I was looking for a antenna tuner which fits in the compact line of QRP my gear. Mar 05 2020 The BLT tuner worked great. The first thing is that the instruction manual that came with the antenna said I need at least 6 meters of mast and I could only scrape together about 5. TheBUXCOMM model 802134 Windom is an antenna that enables operation 80 through 6 meters without an antenna tuner. Re staked out the guide lines and antenna wires. All I know is it has worked well for me in two versions. A good balanced tuner is required for optimum operation Oct 03 2006 ARRL Antenna Compendium Volume 2 page 119 A Simple Broadband 80 Meter Dipole Antenna Reed Fisher W2CQH ARRL Antenna Book 18th Edition. In this article I ll try to explain what is happening when you use an antenna tuner. But seriously why do you want to use an antenna tuner on VHF UHF bands While the use of an antenna tuner on HF may be justified due to the relative width of the bands e. Distance of 3 323 miles with 100W and a very non resonant antenna. The twelve volt power supply comes in through the pig tail wire up on the right. On the shelf above Antenna Tuning Unit for 6 meters by Igor Grigorov RK3ZK. Doug has made one of the best manuals for a kit that I have seen. There are a number of factors which may be wrong with the installation. It can also be modified to work on the FM portion of the 6 meter band by shortening the length of the 2 main elements a little at a time. After searching the internet I was unable to come up with any 6 meter antenna tuner circuits so I decided to experiment and design my own. unbalanced lines that you might wish to read as well as balanced vs unbalanced tuners. Ten Tec Model 1213 rig to soundcard USB Digital Mode Adapter USB Serial Converter Cable Nov 06 2012 6. It matches unbalanced feed coax to a balanced output with a link coupled coil. Jan 25 2017 Ham Radio Satellite Antenna Simple inexpensive and lots of fun Here is an easy to make home brew antenna that can get you on the air working satellites or be built for use as a portable. Before my radio showed up from the eBay seller I had downloaded the plans and built a home brew Buddipole antenna that can be used on 10 20 meters with simple adjustments of two whip components. I realize that good antenna tuner components can be quite expensive when purchased new if you are even lucky enough to find a supplier. Using Amidon cores in particular TXXX 2 and 6 the losses are relatively low and the performance of the antenna is better but in the lower bands you may need a antenna tuner to obtain good SWR. No way to use this antenna in 7MHz and less. L Match Antenna Tuner Completed GI7B Six Meter Amplifier. Also useable on 6 and 2 but high radiation angle will limit performance. Many nice QSO with european hams. This antenna can be used as an off center fed shortwave antenna to provide continuous coverage from 500 kHz to 60 MHz SWL. If we place the meter at the node shown below the transceiver to the left and the reflection point to the right everything to the right of the meter represents the antenna and to the left the wave source radio . The antenna tuner power supply GPS and assorted cables fit into a 14 quot X 14 quot X 14 quot box that weighed approximately 30 pounds. 6 Meter Half Wave Dipole Antenna with W2FMI 1500 Watt MFJ Enterprises Inc Ameritron Hy Gain Hygain Cushcraft Vectronics Mirage MFJ MFJ Enterprises Antenna Radio Ham Radio Amateur Radio Tuner Analyzer Starkville Amplifier homebrew projects Home made No frames supported page. schemas Homebrew Antenna Tuner by AA5TB For years I 39 ve thrown together simple antenna tuners to get me on the air when needed. My antenna is at about 57 feet 17. Sep 01 2013 Antenna Round Up antennas for 6 10 amp 2 meters Antenna Theory 101 antenna tutorial from KD4SAI Antennas from K5DKZ Antennex online antenna magazine Attic Antenna trap dipole design for your attic . Adapters Cables amp Connectors. It will match an amazing range of antennas and impedances far greater than many other Sep 03 2016 Some 43 foot antenna vendors claim the antenna can be matched from 160 10 meters with your in shack tuner. Now if the tuner is taken out of bypass mode and its inductors and capacitors adjusted until it produces a perfect match between transceiver and antenna the SWR meter at left will be indicating 1 1 but the SWR meter at right will still be indicating 10 1. 8 A502HB 6 meter The Dominator 6M is designed as a strong dependable 6 meter repeater antenna but covers the full 6 meter band very well for home use. It is approximately 100 feet long can handle the legal limit and is easy and inexpensive to build. The aluminium mounting is made of a 6 to 30cm plate Bent in a U form . The legs then will be 6 39 8 3 16 quot . I have been using the switch with up to 1200 wattrs on HF and 500 watts on 6 meters. 80 6 meter OCF Dipole amp Antenna Tuner Demo Shark Antennas S FM6 Mono Band 6 Meter Mini Mobile Vertical Antenna with 3 8x24 Threads Handles 250W Max. 95 Out of all the antennas I have tried the homebrew quot Coaxial Dipole quot aka double bazooka has been the best single band antenna. This formula takes into consideration the capacitive quot end effect quot from insulators which shortens the physical length requirement for the equivalent electrical length. For now I 39 ve put the Moxon project on the back burner Plug in the MFJ 993RC this is a remote control that can be used for MFJ 39 s line of IntelliTuner Automatic Antenna Tuners remote control and put your tuner at your antenna or elsewhere and control it remotely. Photos are great and sure help you keep on track. You use this meter to correctly adjust the dials and switches until the SWR meter indicates a ratio of close or equal to 1 1. The length of a full wave antenna is given by the formula 1005 frequency in MHz total length of the loop. The above matching technique described by Andrew S. Griffith W4ULD in his article Getting the most out of your T Match Network Antenna Tuner has always produced excellent results with my T Match Network and antenna Collins antenna coupler control head for SRA 22 remote tuner. So this diagram cuts the 10M antenna to 28. The first antenna tuner I saw was in the early 1960s and it was the balanced line tuner by E. May 22 2013 This interaction affects the reactance of the GS3 antenna causing the SWR across of the 20 meter band to be about 3 to 1. 6 meter antenna tuner homebrew

wykk ejn8 w4gt 3lwe uz6b nt2j vdd3 1t87 tbpt mlcw