40m yagi homebrew

Although the built in KX3 tuner handles all the matching now, I'll describe the tuner I needed to use with my previous rigs in case anyone is still interested in a homebrew external tuner. 124 - Terminated Folded Dipole for 80m, 40m. Full size 2 element Yagi antenna. africa 28. 127 - Log-Periodic Wire Antenna for 20m, 15m, 10m. This page covers 3 element Yagi Antenna basics. There are 3 other sections. This antenna has been made popular by the Emergency Amateur Radio Club of Hawaii (EARCHI). 0405 Mhz. Reviewed by Bob Allison, WB1GCMAssistant Laboratory Managerwb1gcm@arrl. I also got descriptions as to how they were put together, how they performed etc. The boom is 40' long and the elements around 67' each. ncdxf/iaru international beacon network. We designed and built this antenna to mount just below our tri-bander at about 70’ on a crank-up tower. 200 4u1un united nations 28. Skip navigation Sign in. It is made with very high quality materials and the best in its class in the market in terms of mechanical construction and electrical performance. So I narrowed it down to a simple half-size 2-element "Yagi". The KJ5VW 20 Meter Mini Yagi The KJ5VW 20 Meter Mini Yagi Gary R. The 70cm aerial was designed using MMANA and was built using 2mm fence wire for elements, 1/2" timber for the boom and hot-melt glue for fixing the wires to the wood. At 10 meters, however, ele-ments are much lighter. DX Engineering HEXX Beam Antennas are simply the best choice for a small and lightweight directional HF beam antenna Find DX Engineering HEXX Beam Antennas DXE-HEXX-5TAP-2 and get Free Standard Shipping on orders over $99 at DX Engineering! G3TXQ 6 Band Hexbeam 40m single element add on kit. This is the first Yagi I made for Ham radio work. Richard Lau) at Nibong Tebal, South of Seberang Perai, Penang. Found a simple plan online and I used a piece of scrap wood for a boom and some 12 gauge copper wire that I had left over from another project for the elements. 15 meters is just to the left. When raised the tower is 18 metres high. 200 w6wx san jose, ca 28. Probably can't get 80/75M both without a tuner. 130 - Earth-Mover Inverted-V Antenna for 40m All information, images, and documents on this website are the sole property of Hygain Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from Hygain Product Code – 40M2TORHEAVY . It has no effect on the performance of the yagi. 200 4s7b sri lanka 28. I found an article in the ARRL Antenna Compendium 7th edition for a 20m mini yagi and have made the calculations to make one similar to it for 40m. 8 MHz and as the driven element for the yagi array from 13. 200 5z4b kenya, africa 28. Homebrew 70cm Yagi I built a simple six element 70cm Yagi antenna today in hopes of hearing some of the mounbounce signals from the Arecibo radio telescope in Puerto Rico on Apr 16, 17, 18. I recall many years ago when that realisation set in for me. 40m Antenna 2 Full Size Elements PA7-2-6 2m Backpacking Yagi. That was in 1994 . All information, images, and documents on this website are the sole property of Cushcraft Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from Cushcraft I spent hours struggling over Dave Leeson's "Physical Design of Yagi Antennas" and the element design spreadsheet that goes with it (downloadable from the ARRL web site). The Optimized Wideband Antenna. How To: Solder a Vertical antenna with center loading 6,3m for 40m band. The 3 element Yagi is the original Steppir antenna. … a lot of money. Shintaro Uda. The rest is a lot of reading, reading, learning, learning and at last a lot of work 🙂 In the search for the “Wonder Antenna” that is small, portable and easy to setup, I’ve decided to build an Endfed antenna using a 9:1 match. Cushcraft achieved a major breakthrough in the development of an HF multiband vertical antenna that has been specifically designed for use with a tuner and amplifier. If you’re into MMANA software modeling, here’s the file: All Bands Vertical Antenna-HF (homebrew) A few months ago my friend 9W2 AYR(Anuar) and I visited my new friend 9M2LR (Mr. Homemade 70cm Yagi Beam Antennas. The Monster of the Site has a High-End Heritage . 4 to 1 Balun. Since an old 5 element version (v1) of my antenna was shown in the July 2011 edition of RadCom, a few people have contacted me asking for some information on how it was constructed. Some of you may remember the 7 band Hexbeam that was in production a few years ago. A full size 40 meter yagi is more economical to build than buy and is easier to tune that a yagi with loaded elements. 40m Full size Yagi antenna 4elements Heavy duty construction PA7-4-18 The best antenna for 4. It was mighty tough coming up with a taper schedule for a full size 40 meter beam with the parts I had on hand. What are the reasons for stacking anyway? 2. 20m 3 Element Yagi Antenna Basics | Yagi Antenna calculator. ATS3B QRP QSO with Indoor Antenna. STACKING, PHASING and MA TCHING YAGIS This is a synopsis of a talk presented to the Sydney VHF DX GROUP on Tuesday March 16th 1999 by Gordon McDonald VK2ZAB. I currently have a 7040 crystal and the rig seems to put out just about 500mw at 7. The design uses electric fence posts for support and needs no balun. Yes, that is I out on the boom. Homebrew 4-element 12m Yagi Reworking a Hygain 15m Long John for WARC-12m Duty I had not planned to put up a 12m beam but when a big dxpedition in 2018 looked like it would be workable on 12m, it was a good enough excuse to cook up a quick redesign of a Hygain 15m LJ105. The reflector is longer than the driven element, and both are around ½ wavelength long. The simple Yagi Antenna is shown in the figure-1. This position is located in the main building. Yagi's name appeared on the 1926 US patent application. RF - Homebrewing a 6 Meter Yagi By Zack Lau, W1VT Six meters is a great band for home built Yagis. 126 - Cobra Antenna for 80m. My dipole is 32' end to end. wire array was considered but would have been a compromise design because of the crank-up tower and limited space. An Hexagonal Beam in 3 hours. about 10 turns of RG6 cable bundled to prevent RF from leaking through the coax also will work if nothing is available. 125 - Short-Fat Antenna for 15m. • Kit DXM40-4 for DXM40-3 available, for transforming this antenna to a 4 element 40m Yagi (DXM40-4) → New in 2017 Boom guy set 1 - "Over the boom" guy set with vertical support included: Due to the weight and size of the 3 element 40m beam, an "over the boom" guy set providing vertical support is now included. Post #1229. How to Install Ham Antenna Ground Radials. Getting the whole antenna in a flat top configuration helps over the more usual inverted vee form. The antenna is a 3 element full sized 40 meter yagi. I chose the TS-120, cleaned it up, cleaned up his Astron linear power supply and his microphone. We will briefly discuss This calculator is designed to give the critical information of a particular beam antenna, in this case a three element Yagi, for the frequency chosen. 1) Skip the theory, and let the computer do all the work. Low Band Antennas at W3LPL “Shorty 40” 2 element Yagi or Moxon Rectangle 70-100 feet high Very easy and low cost to homebrew your own antenna AC6V's HOMEBREW ANTENNAS LINKS INCLUDING ANTENNA THEORY . Post # 144 MHz 4 element yagi - dimensions. “The VE6WZ QTH is a small city lot, so achieving gain on 80m has been difficult. Adding a Director to a ¼ wave 40M HF vertical antenna . A Choke Balun for 80/40M Dipoles. A Hawaii-based Amateur Radio Antenna Blog focusing on the theory, design, and use of homemade antennas. . - eHam. 2M Square Dipole Construction. Also works on 40M and 30M (preamp/bandpass filter must be off)Performance is a toss up compared to my 2EL Optibeam 40/30M yagi. Save 20 meter yagi antenna to get e-mail alerts and updates on your eBay Feed. This antenna features 21 elements on a 14 1/2 foot Boom and provides excellent gain and F/B performance. Version 3: 144-144,8 MHz for EME/SSB/CW use. : The 40 M Operating Position. It's a C-L-C type setup with a series connected capacitor, a parallel coil, and another series connected capacitor. My airwound coils are at the 50% location and I'm using 6 x 1/8" aluminum HATS on each end. 70cm Ruslan Yagi. The Dimensions Rather than giving the dimensions only for the 40m version, I wanted to have the hex beam calculating spread sheet here. But a 1:1 balun is recommended. One can use a homebrew 1:1 balun for feeding. 3 element Telrex on 46' boom at 70 feet . Modeling the 40m W6NL Moxon 4 April 13, 2012 Figure 1 – Moxon Designs The top design in the figure shows the classic 2 element parasitic Yagi, with a driven element (DE) and reflector (REF). I recently purchased a new 2. HF Yagi, HEXX Beam and Rotatable Antennas. N6BT has done repeated tests that show that a flat-top dipole mounted at the same height as the apex of an 4-Element Home-Brew Folded Dipole Yagi Dimensions I’ve recently “made” a 4-element Yagi in software for my YouTube channel which should give a great match to 50 ohms. net. Overview. Enter the desired frequency then click on Calculate and the optimum values for that combination will be displayed in feet, inches and fractions of inches, and in meters. I decided to build the simplest of our four Yagi antenna first - the M2 Antenna Systems 440-21 ATV. All information, images, and documents on this website are the sole property of Hygain Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from Hygain Sunday 18 June 2017. The maximum forward GAIN is about 8,17 DBi (6 DBd) on 145 MHZ. 200 ve8at canada 28. The antenna on the top is the 20m 3el yagi. Search. While the gain won't be "up there" with the big tri-banders & the like, a useful amount of gain can be realized without breaking the bank. FOR HAM COMMERCIAL ANTENNAS FOR SWL ANTENNAS FOR CB ANTENNAS ANTENNA SOFTWARE PROGRAMS Antenna Project – Portable 70cm 7el DL6WU Yagi Yaesu FT-857D Menu Settings SOTA - 6m 52 MHz Coaxial Dipole Antenna 40m center loaded vertical antenna - 5 metres long SOTA - End Fed Long Wire Antenna Results 144 MHz 2m dipole for SOTA SOTA - Homebrew 23cm 12 element Yagi Antenna Pages. 200 kh6wo honolulu, hi 28. Stay here to learn how to design a 3 element yagi for whatever frequency or wavelength you want. 200 vk6rbp australia 28. Boom made from 55 and 50mm tube. 2) Go to the Gain VS Height above ground. It mentions Yagi Antenna Calculator and mentions formula used for calculations. 8 MHz to 54 MHz. Visit 3 elements Yagi for 7 MHz resource and rate it. 5 Band Hexbeam. Another 9 Element VHF Yagi Design. This page contains construction details on a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use. Choose from top-brand HF Yagi, HEXX beam, and other rotatable antennas to meet your high-frequency needs. PA14-3-6. org The … K6MYC on Antenna Testing Hybrid (wire element) SteppIR 40M yagi or I should have bought a Dream Beam-18 in the first place August 17, 2010. Wind survival speed 130 km/h. For 40-meters, you are doubling the wavelength (elements) from 20-meter antennas. Post #1233. The set consists of a Are you that guy that tells everyone you work the World on a wire and don't need a Yagi? In most cases, it is the Yagi belonging to the guy at the other end of the QSO that is doing all the work, pushing and pulling on your behalf otherwise, that QSO might not happen. The links to other antenna calculators are also mentioned. 200 vr2r hong kong china 28. 200 4x6tu tel aviv 28. org The … K6MYC on Antenna Testing Yet another 40m Cloud Burner design featuring a folded dipole driven element plus one reflector wire to facilitate 40m NVIS contacts without need of a tall mast. This antenna (Version 1) was described in the issue 2/2000 of the magazine "FUNKAMATEUR" , report "Kurze Yagis für das 2m-Band in bewährter 28-Ohm-Technik". A coil loaded 2 element Yagi antenna for the 40m band from the Vortex Antenna Systems ‘Heavy Duty’ range. Ever wondered what would happen if you combined a 40M rotary dipole with a fixed-position reflector or director element? 7-Element-Yagi for the 2m-Band with the 28-Ohm-DK7ZB-Match. 5. Follow the links at the left to see various pages of design and construction details. (if someone suggest's a vertical or an "allband" antenna, they want you to finish on the bottom of the pile up!) 3 Element Yagi Spacing and Installation Layout (not to scale) Note: Element spacing is measured from element center line to element center line in all cases - not from the brackets or EHU’s Figure 7 SteppIR Antennas - 3 Element 9 Boom/Mast Plate Mast 2 2 Splice 3 3 Splice 1 1 Optional 6m Passive 112 in. 8 MHz to 13. What a bad mistake that was! The butternut antenna I once own was a 5 band vertical and work really good considering I did not have any radials down, and did not have the space to put any down. Get a strong, clear signal with less noise from 2 meters through 40 meters with your choice of single- and multi-band Yagi antennas with up to 16 elements. Homebrew vertical antenna 40m band by YC2YIZ Edy Karsono. 3 Band HF Delta Loop. The big rotor controls are for the 3 element yagi's. The end nulls are significant. This antenna has excellent F/R and gain while maintaining a flat SWR bandwidth. It is an excellent all-around 40 meter antenna for those who don’t have room for (or can’t afford) a yagi, but want more than an inverted V. K6IF/W6BDN 40 Meter Rotatable Dipole . 2 shows a table for the SWR, GAIN and F/B ratio. 3) Go to the Take-off Angle VS Height area. OptiBeam OB2-40 high performance 2 element 40m Yagi product reviews by real people like you. 3/3 HyGain 403B at 180/90 feet. The surrounding ground clutter and variable terrain would have made vertical Nashua Area Radio Society › Topics In All Forums › Homebrew Forum › Possible 40m Short Yagi Designs… This topic contains 9 replies, has 6 voices, and was last updated by Jim Lajoie 1 year, 10 months ago. 6pf, and around a 50% efficiency. 3 elements Yagi for 7 MHz resource page currently listed under the Antennas/40M/40 meter Yagi Antennas category that is about Yagi antenna projects for 7 MHz Band. 2M 3 Element Yagi. Yagi 5 element 40m band Full Size The guys with the Steppir trombone element for 40m do quite well. 6 length, I found a 100 meter roll of 6 core telephone wire and chopped 15 meters off it. So it should actually be referred to as a Yagi-Uda antenna, but unlike the Japanese patent, only Mr. Heavy duty construction. A 40' "gin pole", which 20' is above the tower was temporarily added to give us "extra head room" for rigging purposes. Driven Three Element Yagi The performance improvement over a standard two element wideband Yagi with the same boom length comes at a price — an extra element and a phase line. Drafted on the same design used in the 3 element Yagi 6 -20 mt, the UB-50-Project has been made My Favorite 40m "DX" Antenna NOTE: This is not a plug-n-play antenna. Some current loaded 40M 2 El. All this was very safe. I started out with some Telrex beams in my bone pile and an idea that I could homebrew a 3-element 40m beam from the parts building it on the cheap. 20m monoband Yagi antenna 3el. : 40 M Antennas. 2,599. 40m 2 el. Would building a bigger Yagi better suit 123 - Lazy-Loop Antenna for 40m. Initailly this was on the rooftop and worked for nearly 3 months as I didn’t I decided to experiment with Magnetic Loops. The JK402 is a short boom 2 element 40m Yagi that has excellent gain and F/R. 25 meter Yagi Antenna, 222 - 225 See more like this. If we were working with a 40 meter Yagi, the third ele-ment would add a considerable load on the mast and rotator. Sometimes K9AY is quieter but sigs are not as loud as the yagi. Using our proven technology it gives continuous frequency coverage from 13. Version 2: 144-145 MHz for SSB/CW use. 128 - 5-Element Log-Periodic Vertical Antenna for 80m, 40m, 20m. 200 oh2b A 2 Element Direct Feed Yagi by WB2VUO, Keith . Its a version of the Michigan Mighty Mite and built for 40 meters. The antenna to the right is a 40m Inverted V. Photo taken on 2004-02-01 by 4S7AB. Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from MFJ Enterprises, Inc. QUESTIONS When the stacking of Yagis is being considered, the questions which usually arise are: 1. Manufactured from extremely strong construction grade 6082-T6 Aluminium stock with a heavy duty boom wide-spaced High-Q loading coils. A 145MHz 2m loop. The ability to tune on any specific frequency in the 7 -50 MHz (40-6 mtr) range with utmost perfomances, soon will make this 3el Yagi antenna as a real UltraBeam "queen". 28. • The band of 40 meters in Indeed, the TUNE button easily swallowed the incorrect size of this antenna for the whole of the 40m band. 5 watt 23 cm 1296 MHz transverter from SG-Lab in Sofia Bulgaria. 80m & 40m DUAL BAND HOMEBREW 2 EL SHORT BOOM YAGI. SteppIR Antennas 40m - 30m Dipole Kit 3 40m - 30m Dipole Overview The 40m - 30m dipole is simply a driven element that functions as a dipole from 6. The Optimized Wideband Antenna (OWA) is antenna feed-point matching method developed by WA3FET that provides an increased feed point impedance while widening the VSWR bandwidth. Long 40m - 30m Return Mounting Bracket All information, images, and documents on this website are the sole property of MFJ Enterprises, Inc. A Homebrew 40m Magnetic Loop Antenna I checked his gear and found he had two hf transceivers which were still in working order; an old Atlas 110x and a Kenwood TS-120. 200 zl6b new zealand 28. 129 - 2m Vertical Wire Antennas. Note The following antenna projects were gathered from the internet, therefore the author does not endorse any of the projects, you are on your own. Shortened element with high-Q loading coils PTFE insulated and weatherproof. QRP TRANSMITTER - Michigan Mighty Mite! This is my first homebrew hf rig. 1 FIG. I bought a few antenna from a deceased estate, including bits of a couple of TET and TET-Emtron HF beams. Resi kiriman BRG, dishare via WA. net is a Web site dedicated to ham radio (amateur radio). 2 Element Quad Antenna. FIG. The Linear-Loaded "Crappie" 40M Rotatable Dipole A Short 40 Antenna You Can Build for $50 or Less In the SARTG RTTY contest in mid-August 2006, my 40M performance was terrible -- just over 20 contacts. The yagi works the same with or without this option. 2 Meter 3 Element Tape Measure Yagi Antenna. Resources listed under 7 MHz Yagi Antennas category belongs to 40M main collection, and get reviewed and rated by amateur radio operators. The 10m Yagi looking great on top of the tower. Due to the complexity of parts and time taken to make plus time vs profit the project was shelved until I could come up with something that could replace it and in some ways better it. Excellent mechanical properties. 200 ja2igy mt asama, japan 28. ARRL Product Review of the M2 6-Meter HO Loop Antennas. 80m & 40m dual band homebrew 2 el short boom yagi. 2. 70cm Vertical Antenna. Homebrew 10/20/40m EFHW vertical Antenna "SOTA". BASIC YAGI ANTENNA DESIGN FOR THE EXPERIMENTER Helpful non-technical, no theory user information for Yagi Antenna Design and How to Understand basic Yagi's Condensed and re-edited from various sources. NEW COMPACT 6-40 METERS YAGI Today UltraBeam presents its latest UB -50. This method can be used to improve several common amateur antennas: the dipole, monopole and the yagi. 1 shows a 3 elements VHF Yagi "homebrew" antenna designed with YAGIMAX 3. Simple Quarter Wave Ground Plane. 200 oh2b W1DYJ ~ Larry Banks DXCC WAS VUCC WAC 40M Vertical October 2014 A 40M l/4 Vertical with Elevated Radials Larry Banks, W1DYJ First licensed: 1962 (KN1VFX) W1DYJ since 1966 – Amateur Extra ARRL Product Review of the M2 6-Meter HO Loop Antennas. The theory starts here. First thought: Yagi, at least 3el … ok, lets calculate: tower (20m), basement, antenna, rotator, etc. 20/15/10, triband Yagi. The package includes a 2el HB9VC PCB yagi which has turned out to be a great addition for portable work, particularly from a hilltop with a good uninterrupted view of the horizon. 200 zs6dn wingate pk s. beams • Cushcraft (now owned by MFJ) So I have been a general class for a few years now and have worked a few good dx contacts, but now I am wanting more. This famous type of antenna was invented in Japan in the 1920s, by Dr. The skeleton slot provide an ingenious to feed two stack yagi antennas her is my design I'm currently (12-16-16) using a homebrew rotatable dipole on 40m. Only at eHam. Some would choose to take the step up to a full size 3-element yagi for its simplicity and better gain, or stick with a small 2-element yagi and its performance limitations. The completed beam mounted on the temporary test-tower for checkout is shown at right . This antenna is advertised to have 15/22 db F/B so the results are about what you would expect. About. Contact me This multiband vertical designs provide 9 band coverage encompassing the 6, 10, 12, 15, 17, 20, 30, 40 and 80 meter bands. This 70cm yagi was constructed after I had decided that my 4-element 2m aerial was just too cumbersome. A 40-meter 3-element Yagi antenna DIY build amplifies the issues to address -- due to significant size, weight, and costs for such an antenna as well as tower and rotator system. Home Brew 80/40 Meter Vertical Antenna I once own a butternut antenna and sold it. 200 rr9o novosibirsk russia 28. Hi Greetings, I have already started to construct a 3 element Yagi for 40 Metres but have not yet decided how i am going to match or feed the antenna, what is it you used, a Gamma match with a tuning Capacitor connected to it and what is the rectangular box the tuning Capacitor goes on to before the 75 ohm coax? Yagi Antennas for 7 MHz is a curation of 12 resources about , 3 elements Yagi for 7 MHz, 2 elements YAGI for field day operation, Yagi for 80 and 40 meters, 40m 2 Element Yagi Beam, 40 Meters Wire Yagi Antenna. There have been many improvements over the years like the addition of a an optional 40/30M rotatable dipole and our now standard electronic controller, the SDA100. As this antenna was new to me, I got a few of these stations to rotate their beams so I could see the front-to-back ratio. yagi I will build this spring. A 9 Element 2M Yagi. If you want it to work properly, you will need a means of measuring SWR, some trial and error, a little patience and at least half-a-brain to build this. The JK404C is a great contest antenna on a 36ft boom for 40m. Over the last few years, I have heard guys using Hexbeam antennas. The bottom one is the 5 el 10m yagi. After a few talked he gave us an article about vertical antenna that he took from the internet. Voltage Balun. 00€ Add to Cart. It is the basis of a 2 el. . home brew 2 element beam for 40 meters. Jeff , VE1ZAC This is not a new idea, but the method I am suggesting of doing it is novel, and possibly simple to implement ! The caveat is that it is fussy and unique to each antenna situation. Stripping off the 10. 20m 3el Full Size Yagi on a 20ft boom. V or U Quagi. A 3" to 3-1/2" aluminum boom would be expected. Post #1227. With careful construction and detailed instructions, it is certainly feasible to build no-tune Yagis up to 432 MHz, but I have my doubts about 903 Yagis Setelah pembayaran, kirim Alamat Jelas via SMS/WA ke 085221417999(noorman), No. + Cushcraft A224WB 4 Element 1. recent up-date: in the summer of 2018 the 2 el 80-40 yagi feed system was re-designed to allow for instant 180 degree direction switching. Post Inexpensive antenna mast. beam Yagi (7 MHz) DXBeam (DXM40-2) 40 meter 2 element beam Yagi (7 MHz). VHF Portable Dipole. Then I worked VE9ZY, Mac, and he told my about 4-square vertical array’s. Using the software at the bottom of this page, I worked out that a 36cm length of wire, will need a capacitance of around 3. W6NL 40M Moxon Yagi. Version 1: 144-146MHz broadband. The elements are reasonably small, but not so small that building tolerances are critical. Post #1231. Small multiband HF beams- TET-Emtron revisited While I haven't posted much recently I have been chasing a few wild ideas. THIS PAGE IS ABOUT HAM HOMEBREW ANTENNAS. 40 Meter Mini-MOXON Beam Antenna Designed, built, and presented by: Al Koblinski W7XA. A little history and some comparisions. • Increased vertical separation of elements you for optimal performance of 6-20 meters. graph. Probably the easiest rotatable beam is a 2 Element Yagi, both in the mechanical and the electrical sense. These two positions are used for single op or multi single. I needed to make this longer though so I could run high power in a comfortable manner. 8 to 54 Mhz. First, I tried something simple. This antenna is up at 140'. But it is awfully large. The antenna is made with our high quality, heavy duty materials and hardware. Hidetsugu Yagi and Dr. This article is not designed to give you construction details for building a Yagi. Finally and after many prayers and here the new Hexbeam with 40 meter band including 7 Bands! Note: The 40 meter band is not directional like the other bands, it is a folded dipole. (Click to see a full size photo of the Yagi) Click here to see a view looking from the end of the Yagi at 100' The VE6WZ QTH is a small city lot, so achieving gain on 80m has been difficult. I had heard the Telrex beams were the top of the line back in the 60's and 70's but that despite a reputation Dimensions for a Fixed 3el and a 7el 40M WIRE Yagi « on: April 18, 2009, 02:30:07 PM » Brent was interested in dimensions for a 40M Yagi, so I figured I might as well post mine in the antenna section for future use. A vertical 4 sq. This antenna is made for the DX'er that ís looking for an antenna to work across the globe. Hanson, KJ5VW Austin, Texas Imitation, it is said, is the sincerest form of flattery so let me begin by pointing to the direct source of my inspiration for building this antenna. 40m yagi homebrew