M0ukd 6 element yagi. 6 features was chosen, for the boom length is 2m (6.
M0ukd 6 element yagi. Fred G3SVK also came and done some CW.
1MHz. Antenna design calculators category is a curation of 106 web resources on , RF Toroid Calculator, Parallel Square Conductor Transmission Line Calculator, HB9CV Online Antenna Calculator. Nov 16, 2014 · A few of us decided to have a go in the RSGB 21/28MHz contest on Sunday. 4MHz). Hard to beat with A 6 element wideband 50-50. The additional element in front of the Radiating element (J), is responsible for the high FB & FS and wide SWR coverage. Fred G3SVK also came and done some CW. He set up a 70MHz station on top of the Sep 20, 2015 · m0ukd/p – 70mhz We had some great September weather today for the 2nd 70MHz contest. Mar 7, 2017 · I do have some things to update and new pages to add when I have the time such as constructing a 20 element 1. I know my power required at the antenna is 4 Watts for an ERP of 6 Watts from a 0dBd antenna (maximum watts allowed in a Class IIA hazardous are). This gain closely matches the ideal gain predicted for the 6-element Yagi antenna. May 20, 2021 · Earlier I wrote about my new 6 meter amplifier and power supply. mp3 Oct 10, 2015 · 144MHz 2m Portable Yagi VHF Beam Antenna; Magnetic Loop Antennas; Homemade Carolina Windom antenna; Homemade 20 metre band loft dipole! John M0UKD. Aug 8, 2023 · 144MHz 2m Portable Yagi VHF Beam Antenna – M0UKD – Amateur Radio Blog. built for quick assembly in the field or up mountains. Table 1 Dimensions of the Yagi for Different Construction Methods Tapered-Element Version Using 0. SWR Sweep for the 18el Ultra. Tweets by @M0UKD Common Tags 1/4 Wave 2m 4m 10m 15m 21MHz 28MHz 70MHz 144MHz 160m Amplifier Amsat Antenna Anytone AT-588 Backpackers BLF 278 Calculator Construction Contest Coupler DK7ZB Dungeness End Fed FM FT-897D Half Wave IC-7200 ID-51 International Space Station Inverted V ISS J Pole Linear Monoband MOSFET Portable quarter wave Secret Sep 17, 2015 · Tweets by @M0UKD Common Tags 1/4 Wave 2m 4m 10m 15m 21MHz 28MHz 70MHz 144MHz 160m Amplifier Amsat Antenna Anytone AT-588 Backpackers BLF 278 Calculator Construction Contest Coupler DK7ZB Dungeness End Fed FM FT-897D Half Wave IC-7200 ID-51 International Space Station Inverted V ISS J Pole Linear Monoband MOSFET Portable quarter wave Secret The Y4506 from Laird (formerly Anexter) is heavy duty, fully welded, gold anodized directional Yagi antenna with 6 elements, operating at 450-470 MHz, providing 12 dBi of linear gain. A 6 element wideband 27-29MHz - 28-30MHz OP-DES (Opposing Phase Driven Element System) The First Dualband 10m/11m Yagi - NEW! Second Generation OP-DES Yagi ! The OP-DES is the newest Yagi produced by InnovAntennas and is specifically designed for maximum performance, wide-band applications. 6MHz OP-DES Model 6-OP-JHC (Opposing Phase Driven Element System) Yagi - Named after G0JHC - Second Generation OP-DES Yagi 2019 version now Super HD ! The OP-DES is the newest in patent technology produced by InnovAntennas and is specifically designed for maximum performance, wide-band applications. This model takes our standard 20m-6m Yagi and replaces the 36 foot (10. End Fed Half Wave (6. Bandwidth from the resonant frequency is about 200KHz either way, any more needs an ATU. Aug 23, 2015 · A few of us decided to have a go in the RSGB 21/28MHz contest on Sunday. Oct 10, 2015 · 144MHz 2m Portable Yagi VHF Beam Antenna; Magnetic Loop Antennas; Homemade Carolina Windom antenna; Homemade 20 metre band loft dipole! John M0UKD. GMRS Base Station Install Tips: Thoroughly tape the coax to antenna connection with UV resistant electrical tape such as 3M Super 88 to prevent corrosion. But beforeRead More Oct 6, 2015 · A few of us decided to have a go in the RSGB 21/28MHz contest on Sunday. It is set by default to 0. This leads to a decrease in the inductance per length in this place, which is equivalent to shortening the element. Apr 1, 2021 · I found this to be an interesting take on a (DIY) portable 6 element 2 meter Yagi. The radial length is measured from the bottom of the driven element, so actual rod length is slightly shorter. Element and dipole setup on our booms - Marine grade stainless steel used throughout . A Portable Quad for 2 Meters by WA9GDZ/6. Dave M0TAZ is building a 4 element 15m Yagi, and I am building a 3 element 10m Yagi. 96, which is for bare copper or With the stronger gain of the electret mic element, I now use between 30 and 40 mic gain on the FT-817 on SSB as well as now being able to talk further away from the mic. Sep 26, 2014 · Dave M0TAZ is building a 4 element 15m Yagi, and I am building a 3 element 10m Yagi. The driven element of the LFA-Ultra is held in place with just 2 bolts. Icom IC-7200 SO-239 to N-Type Socket – Changing the SO-239 to a decent connector! Aug 23, 2020 · 144mhz 2m Portable Yagi Vhf Beam Antenna M0ukd Radio. 1 S. May 4, 2020 · 144mhz 2m Portable Yagi Vhf Beam Antenna M0ukd Radio. Sales price without tax £166. Nov 14, 2020 · An antenna for 6 meters. com/radioprepper DISCLAIMER: The Radio Prepper Boom and element arrangement of the 18el LFA-Ultra. 15 dB over the theoretical isotropic antenna, the 6-element Yagi demonstrates an approximate gain of 12 dBi. These are sometimes known as a Magnetic Longwire Balun. HYS 7 Element Yagi (11 dB gain) – $70; External Mic for Baofeng UV-9G – $6; CA-35RS Lightning Arrestor – $11; Total Cost For GMRS Base Station and Yagi Beam Antenna: $166. A 1mm wire wound on a 14mm bobbin will have a mean diameter a bit over 15mm. The driven element of a Yagi is the feed point where the feed line is attached from the transmitter to the Yagi to perform the transfer of power from the transmitter to the antenna. 4th August 2017. Since an old 5 element version (v1) of my Oct 10, 2015 · 144MHz 2m Portable Yagi VHF Beam Antenna; Magnetic Loop Antennas; Homemade Carolina Windom antenna; Homemade 20 metre band loft dipole! John M0UKD. Ignore the picture the page takes you to the yagi. Much lower SWR on 30 through 6 meters, now. Its really an impedance transformer (9:1) to feed a high impedance, end fed (unbalanced) random wire which is likely to be a few hundred ohms, and transform it into something closer to a 50Ω (unbalanced) coaxial input, hence UnUn. The coil diameter uses the mean diameter of the copper coil. YB Series antennas exhibit narrow beamwidths and high front to back ratios to help minimize potential interference to and from other systems. As its a half wave element, the wave is opposite at each end. Read more about the OP-DES Yagi Here. I then flattened about an inch of the element, and drilled a hole to accept the lugs of the Oct 6, 2015 · A few of us decided to have a go in the RSGB 21/28MHz contest on Sunday. Oct 18, 2008 · m0ukd/p – 70mhz We had some great September weather today for the 2nd 70MHz contest. This is the second version John, M0UKD has built for use as a portable antenna. Oct 10, 2015 · Tonight, I had my first QSO on the 23cm band with it with two friends who both have the same transverter, G7UVW and M1GEO. It has one driven element and one parasitic director. 625"/0. Feb 1, 2023 · This gain is defined as 10 dBd for the 6-element Yagi. Using the driven element as a focal point, the direction of maximum signal is to the left, away from the director. All you need is two rabbit ear antennas from Radio Shack, two CATV baluns, four feet of 3/4" CPVC pipe with one tee, and a bit of time. Oct 12, 2014 · Tweets by @M0UKD Common Tags 1/4 Wave 2m 4m 10m 15m 21MHz 28MHz 70MHz 144MHz 160m Amplifier Amsat Antenna Anytone AT-588 Backpackers BLF 278 Calculator Construction Contest Coupler DK7ZB Dungeness End Fed FM FT-897D Half Wave IC-7200 ID-51 International Space Station Inverted V ISS J Pole Linear Monoband MOSFET Portable quarter wave Secret When designing this circuit, I was going to power it with a 9v PP3 battery, through a 7805 5v regulator. Antennas, Splitters, cables, baluns, rear splitter mounts, rotators everything! Yaesu MH-31 Mic Mod – Replacing the standard dynamic mic element with an electret condenser element. 4dBd. May 5, 2015 · Dave M0TAZ is building a 4 element 15m Yagi, and I am building a 3 element 10m Yagi. This is a true unbalanced antenna, with a feed impedance of around 50Ω and therefore a great match to 50Ω unbalanced feedline. After plugging this into my tranciever, and tuning to some RTTY stations, I decided to give it a go. I managed to get a 1:1. 6 ELEMENT PORTABLE / ROVER 144MHz YAGI BY M0UKD This page contains construction details on a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use. Now find, mark and cut the element in half. 65m @ 21. 43dBi from this antenna! The final dimensions are 100. Searching for a design on the internet, I came across the usual suspect Martin, DK7ZB and followed one of his designs, the 4 Element 50 Ohm Yagi with 2. Fabricate the Driver: Before you cut the driver element, add a couple 3" to the overall length of the element. The desired file format can then be viewed in your network planning software. Jul 20, 2009 · Press PLAY above, to hear the audio I received with an FT-817ND and homemade 7 element handheld yagi 435. Something I found I just couldnt do with the standard dynamic element. This page contains construction details on a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use. 5Ω Yagi. Various antennas I have built. On6mu Vhf 6 9 Element Yagi Antenna For 2 Meters Receive And Transmitting. 2MHz, ground mounted) SWR – Actual bandwidth on the 50Ω side of the coupler will be much narrower, due to the tuned circuit we are using. I just added a second counterpoise about 35 feet and that reduced ground loss a bit. Since this antenna was to be used for portable The YB Series are high gain yagi antennas which will provide excellent point to point communication in RF control, short or long haul link and other applications calling for highly directional antennas. The original formula was in inches and feet, so with Jack’s permission, I have modified the script to work with metric units, and this is presented below. This would have allowed the use of many logic level MOSFET’s, of which I was going to use the 2N7000 which has a TO-92 case. I used this formula and it seemed to work pretty accurately for centre loaded quarter wave antennas on the 160m band. This compact 6 element 50Mhz LFA provides stunning performance across the important section of the 6m band (50. I find talking ~6 inches away from the mic much improves voice clarity. XYL and I are big fans of British TV and movies. Mar 3, 2019 · Follow these links for some two element beam ideas applicable on bands from low HF through to high VHF. 5" Elements; 250 Ω (Open Wire) Parallel Phase Line 0. Aug 9, 2015 · A few of us decided to have a go in the RSGB 21/28MHz contest on Sunday. This antenna is widely use for migratory tracking of birds as well as turtles using the CTT LifeTag and PowerTag at 434 MHz. DSEJX5-50 5-element Yagi In selecting the Oct 10, 2015 · 144MHz 2m Portable Yagi VHF Beam Antenna; Magnetic Loop Antennas; Homemade Carolina Windom antenna; Homemade 20 metre band loft dipole! John M0UKD. I brought my 3 element 28MHz Yagi, Dave M0TAZ brought the two masts and his 21MHz 4 element Yagi, while George and his dad brought the Icom IC-7700 and generator. The first version was 5 elements while this one is 6. 3el Vhf. Now it's a new 6 meter Yagi. Martin has many designs for many antennas and you will definitely find what you want. 943 and centre frequency was 70. The G0KSC LFA Yagi is a major step forward in the development of the Yagi Antenna; it provides a low-noise front-end for your radio so you hear more weak signals . com/homebrew/antennas/144mhz-2m-portable-yagi-vhf-beam-antenna/ Please see: https://www. I have stuck the electret element onto the front of the mic with some hot glue, then padded it with some foam before placing the PCB back in. Dave started constructing his 15m beam this week. This design was followed by a number of hams like M0UKD,PA3ALF and others Mar 7, 2017 · I do have some things to update and new pages to add when I have the time such as constructing a 20 element 1. MFJ-971 ATU Mods – Adding a tune/bypass switch and extra inductance for 160m. Feb 19, 2015 · John M0UKD. -50-Ohm-Yagi, Boom 1,60 m, Gain 6. 4 elements will give you about 8 dBd, 5 elements will give about 9dBd while 6 elements will give close to 10 dBd. 6 Element Yagi For 2 Meter Band Resource Detail The Dxzone. I decided on Version 1 on this page. A dipole driven element will be "resonant" when its electrical length is 1/2 of the wavelength of the frequency applied to its feed point. Hi Leigh. A 6 element LFA-Q (Super-rigid Quad-style) Super-Light Quad Style Yagi for 144 - 145MHz. Well, a dual band slim jim can be done, but it’s performance is massively compromised on the higher band (70cm). Hence, 'dipole'. This is because on 2m it’s a half wave which has a nice low radiation pattern, but on 70cm the antenna may kind of work, but it won’t be working as intended and will have a poor radiation angle. Prepare and install all elements except the driver. To maintain its electrical length, the element must be physically May 5, 2015 · Dave M0TAZ is building a 4 element 15m Yagi, and I am building a 3 element 10m Yagi. We setup at the Kelvedon Hatch ‘Secret Nuclear Bunker’ as seen above, using my new 70MHz amplifier at 160w and my 4 element DK7ZB 12. You can think of the antenna as an optimized 5 elements. A 6 element very low-noise LFA3 Yagi. It is built from aluminum with 7 elements, providing 10. A portable 2-element VHF Yagi by K3MT. 63. A 6 element very low-noise LFA2 Yagi designed for DK1MAX The LFA2 has a Bent Reflector system designed to enhance SWR bandwidth and F/B. Wooden boom with bicycle spoke directors/reflector and a coathanger as a driven element! 4:1 coax balun. Antennas. M0UKD Amateur Radio Station Information May 5, 2015 · Dave M0TAZ is building a 4 element 15m Yagi, and I am building a 3 element 10m Yagi. 17th August 2015. End Fed Half Wave Antenna Coupler (EFHW) 1:1 Voltage Balun for HF wire dipoles; 9:1 Magnetic Longwire Balun / Unun; Simple CW Touch Keyer Circuits; Capacitive CW Touch Key Circuits; 2N6084 Oct 18, 2008 · The lower run does not circle the building like the upper run. Element Trimming For this job, a fine-toothed saw works well. I even left the two ends drooping down a couple of feet. (Caution: During the following steps, be sure that you cut half the total amount from each half [ie, each side] of an element. If it is GAIN you want from a small boom, this is the antenna for you! Wow, Super compact boom!! Massive 11. Jan 27, 2020 · Seven element yagi antenna yagi antennas for 27 mhz 11m 50 mhz high gain antenna zs2fm the yagi uda antenna antennasCalculator Yagi Uda Antenna Based On Nbs Tn 6883 Element Yagi Antenna Well, we are using a 4:1 ‘voltage’ balun and a voltage balun will not work as a choke, yet we are using an asymmetrical antenna, the shorter element wants to be longer and is coupled to the shield of the coax via the 4:1 voltage balun, causing it to radiate. This element becomes the reflector. Feb 13, 2016 · Build a portable VHF yagi antenna for 2 meters. InnovAntennas provide Complete EME Antenna Systems including everything you need to be you active. With a metal boom, a local thickening of the antenna elements occurs at the place of installation on the boom. This is particularly so if you are operating from somewhere already in the clear that doesn't require you to carry a large mast as well. To help explain this, I have drawn above what happens to the voltage on a half wave element during one cycle. M0UKD Amateur Radio Station Information Sep 26, 2014 · Dave M0TAZ is building a 4 element 15m Yagi, and I am building a 3 element 10m Yagi. Comments. 5cm for the driven element and 112. Since an old 5 element version (v1) of my antenna was shown in the July 2011 edition of Feb 15, 2023 · Sample plots for 15m 3-element wire yagi. Aug 9, 2015 · A few of us decided to have a go in the RSGB 21/28MHz contest on Sunday. Considering that a dipole antenna in free space has a gain of 2. You can see, there are 2 poles, one positive and one negative at each half cycle. gross price Sales price without tax: £166. Sep 26, 2014 · 70MHz 4 element 12. patreon. 3GHz Yagi, building a 1. The challenge for this antenna were that items had to be compact bore to walk upside a mountain and be super quick or easy to assemble and disassemble. All other elements are friction-fit. Excellent for setting up a 2- or 4-element array. Mar 17, 2019 · But on 144 MHz a 4 to 6 element beam can easily be carried places by hand. Hope that makes sense! 73 http://www. 5ft) which keeps it portable, whilst still have good gain. 95. ; 144MHz Portable Yagi Beam – A compact, portable 6 element 144MHz Yagi antenna. Oct 29, 2014 · A few of us decided to have a go in the RSGB 21/28MHz contest on Sunday. With this kind of antenna you can achieve good contatcs from a fixed station to another mobile or fixed , and you can use it to connect satellite stations , using a proper rotor. To download the pattern file right click on the file and select “Save Link As”. The radiating element is a quarter wave (λ/4) and the radials are 12% longer. The first design is actually to short to be called a real 6 elements monobander. 144MHz 2m Portable Yagi VHF Beam Antenna; Magnetic Loop Antennas; Homemade Carolina Windom antenna; Homemade 20 metre band loft dipole! Baluns and UnUns. WY-208: Oct 6, 2015 · 144MHz 2m Portable Yagi VHF Beam Antenna; Magnetic Loop Antennas; Homemade Carolina Windom antenna; Homemade 20 metre band loft dipole! John M0UKD. 00 - 50. 18el 430-435MHz LFA-Ultra, free space pattern . A Rear Mount 6 element OWL Super-Light 144MHz Yagi Sales price: £199. 3 element wideband short-boom Yagi at 52 MHz. All you need is two rabbit ear antennas from Radio Shack, two CATV baluns, four feet of 3/4 CPVC pipe with one tee. What is yagi-uda antenna? construction, working, radiation pattern May 5, 2015 · Dave M0TAZ is building a 4 element 15m Yagi, and I am building a 3 element 10m Yagi. Just remember, when adjusting elements, 1cm shorter on 'C' would equal 3cm shorter off 'A'! *Velocity Factor: I have added the ability to select the velocity factor of your conductor. Oct 6, 2015 · A few of us decided to have a go in the RSGB 21/28MHz contest on Sunday. 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. 5") Length This page contains construction details on a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use. ) For operation at the low end of the band (144 MHz), cut the 66-inch element to a total length of 41 inches (see Figure 1B). Some photo’s are below. Antenna uhf diagram wiring fm vhf rooftop radio building antennas mobile channel which band school high elements low 6 elements vhf yagi antenna by sv1bsx Uhf antenna: uhf antenna wiring diagram. Mar 28, 2018 · The U6YRN is a UHF antenna for 432 Mhz, 70 cm band that offer a 12,1 DBi Gain. W. 4-element yagis. The G0KSC LFA Yagi is a major step forward in the development of the Yagi Antenna; it provides a low-noise front-end for your radio so you hear more weak signals. 98m) straight element with a 39 foot (11. There are usually four radials, three being a minimum, but you could use up to six. With 4 elements it is possible to apply the OWA (Optimized Wideband Yagi) approach, with an element spaced close to the driven element to allow better adjustment of matching. New by KONNI Version 3: 4-El. Tweets by @M0UKD Common Tags 1/4 Wave 2m 4m 10m 15m 21MHz 28MHz 70MHz 144MHz 160m Amplifier Amsat Antenna Anytone AT-588 Backpackers BLF 278 Calculator Construction Contest Coupler DK7ZB Dungeness End Fed FM FT-897D Half Wave IC-7200 ID-51 International Space Station Inverted V ISS J Pole Linear Monoband MOSFET Portable quarter wave Secret Sep 26, 2014 · I thought I might have to trim a bit off the 1m elements, but once I put it on the mast, the analyser showed the lowest VSWR of 1:1 at exactly 70MHz, so I left them as they are! The only thing I forgot was to put self amalgamating tape around the PL-259 plug after putting all my tools away! All watertight now though 😉. The after problem was how to construction e so a canister be putting together quickly. 6 features was chosen, for the boom length is 2m (6. 20m Boom. If you cant get it perfect, the length of the elements may need adjusting or the choke is not adequate. m0ukd. zip Now we have good electro-mechanical connection. 5Ω design and has around 8. 6 Element Yagi – YB6-61. Resources listed under Antenna Calculators category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. The insertion loss for every connector, power divider, length of coaxial cable/100M will be entered into a sepearate cell and the total sum of dB will be calculated. com/static/blog_files/2016/23cm_QSO_07-03-2016. 144MHz to 148MHz Yagis. com/homebrew/antennas/144mhz-2m-portable-yagi-vhf-beam-antenna/ https://m0ukd. Selim M0XTA went to Happisburgh Lighthouse for the Lighthouse On The Air weekend 2015. com Apr 24, 2022 - This page contains construction details on a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use. 70MHz Quarter Wave Ground Plane – Building a simple 1/4 wave ground plane antenna for the 4m band. 2 Meter Ssb Yagi Antenna A 6 Element Beam Homebrew. That’s how, about 4 years ago, I decided to build an antenna. This is then choked off by a choke further down the line. In the space provided on the top right, enter the center frequency for your proposed 2-element Yagi antenna. 500MHz). This is showing the feed point SWR at 3200Ω Jun 30, 2022 · Let's pay special attention to boom-correction. It is a DK7ZB 28Ω feed-point 4 element Yagi, with a forward gain of ~6. Technical Support – Phasing of Side Mounted Dipole & Yagi Antennas; Digitized Patterns. on my desired frequency. That allows these antennas to be designed for higher gain than a 3-element yagi of similar boom length, with a The SteppIR 2 element 20m-6m Yagi with 40/30 loop covers 8 ham bands (40m, 30m, 20m, 17m, 15m, 12m, 10m, 6m) and every frequency in between. John M0UKD on Loaded Quarter Wave Antenna Inductance Calculator; KK5VN on Slim Jim and J Pole calculator; yimbo on Slim Jim and J Pole calculator; Paul larner on Loaded Quarter Wave Antenna Inductance Calculator; Paul, KB1NCD on 1:1 Voltage Balun for HF wire dipoles; Site Map The drawing on the right shows a two element Yagi antenna. May 7, 2020 · Sm2yer goran s homepage 144mhz 2m portable yagi vhf beam antenna m0ukd radio 20m mini yagi beam practical adjustment of the gamma match february 1953 qst rf cafe 2 I used this formula and it seemed to work pretty accurately for centre loaded quarter wave antennas on the 160m band. . 5ohm DK7ZB Yagi. R. 2M , 6 Elements, 11 dB YAGI ANTENNA (based on designs by DK7ZB) Given below are the details of a simple 6-elements high performance YAGI antenna based on design by DK7ZB. Yagi Uda Antenna based on DL6WUHomebrew 5 Element VHF Yagi - NT1K - Welcome10 Best Free Antenna Design Software For WindowsThe Moxon Beam by DK7ZB, moxon yagi, moxon antenna144MHz 2m Portable Yagi VHF Beam Antenna – M0UKD – …Understand Yagi Antenna Theory: the Basics » Electronics NotesYagi Calculator - VK5DJHome - The YS4306-Rev2 is a heavy duty, directional Yagi antenna for 430-450 MHz. Here's a simple Saturday project: build a portable VHF yagi antenna for 2 meters. 625" Inner Sections = 24" Each Side of Center or 48" Total; Add 2" to Tip Lengths for Insertion Element Total Length Tip (0. 24dBd gain. Jan 31, 2015 · Dave M0TAZ is building a 4 element 15m Yagi, and I am building a 3 element 10m Yagi. We used Georges call, M1GEO and a combination of equipment from us all. May 5, 2015 · m0ukd/p – 70mhz We had some great September weather today for the 2nd 70MHz contest. Its a 12. It was then I realized, a counterpoise should run parallel and not perpendicular to the driven element. The wire and ferrite core I had already, the box, terminal plugs and SO-239 came to about £6. 4 dBi of linear gain. My goal is to use these in the home ham shack and for a few 6 meter grid activations as well as the CQ WW VHF contest as a rover. I used a Yaesu VX-6 for the IF, but that went flat, so I switched to the Icom ID-51, which is set to record all QSO’s, so there is an MP3 below! https://m0ukd. * WB2VUO 2 element direct feed yagi * 2 element parasitic yagis by DK7ZB * M0MCX bidirectional 40m wire yagi * VE7CA's portable two element triband yagi (pdf) * More VE7CA portable yagis (pdf) * 2 element wire beam for 24 and 28 MHz by KL7JR See full list on m0ukd. 1 dBd, F/B 24 dB (see below) The Yagi Version 1 is a narrow-band, high-gain design, do not use this antenna if others are nearby! John, M0UKD I started off with about 6 metres of wire per element, with 15 turns on each bottle and cut them bit by bit, until the antenna analyzer showed it resonant at 14. The bit over is the uncoiling that naturally occurs when one releases the tensioning force. 3GHz system & some PSU reviews. Hope to work you on 70MHz! Short version Boomlenght 7,3 meters Types HPSD 6 Short. 5cm for the radials (Velocity factor ended up 0. WY-207: The 7-element Yagi is with only 3m length quite short and offers nevertheless good gain. The LFA-Q Packs a bigger punch than a traditional Yagi with MUCH MORE GAIN per metre of boom . l also have a few messages and comments to reply to which I am getting through slowly. The elements are tapered with 3 different sizes of tubing and the boom is 40mm square and 5m long. 89m) looped driven element. For 20 metres, I started with 6 metres of wire per element, and trimmed each down until it has minimum S. 300MHz This is my homemade beam for receiving AO51.
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