Diy 2 meter yagi antenna. The next thing I thought about was improving the antenna.

ARRL Lab measurements confirmed the computer-predicted antenna pattern. This cable is readily available, easy to install, and will perform well for rooftop runs of up to 60 or 70 feet at 50 MHz. 3 GHz since it is quite difficult to find a 1. All you need is two rabbit ear antennas from Radio Shack, two CATV baluns, four feet of 3/4 CPVC pipe with one tee. 5 Ohms ( two 75 ohm coax cables in 433. I decided to build a copy of a very successful commercial antenna which utilized 2 elements each on the 10M, 15M and 20M bands. 34-36 Two three-element 6-meter Yagi designs. element tip closed (TV-antenna style). Simple j-pole antenna for 2 meter how to build a J-pole antenna for 2 meter band with many photos ecc. We found plans for a six element 6 meter antenna on Hamuniverse. On-line directional antenna designer. ) The lower portions of the VHF/UHF bands in the spectrum above 28 MHz (10 Meters) is referred to as “weak signal spectrum”. 1875 meters 2 METER THREE ELEMENT YAGI (Prototype) The 2 meter antenna in picture above is a three element yagi and again it uses John’s formula for calculating the length for the DE and REF . 0Mhz. Then measure and mark hole locations on the centerline (except holes d and e) at the following intervals: hole a 1″ from one end; hole b 6 1/2″ from a; hole c 6 3/4″ from b; holes d and e 2 3/4″ from c, 5/8″ apart and equidistant from the centerline; and hole f 2 1/2″ from d and e. You can try Martin Meserve's (K7MEM) online calculator here. 2 Elements Yagi 144Mhz; 7 Elements Yagi for 146Mhz band build; 2 Elements Yagi build for 107Mhz FM Band; Build the 5 Elements 2m VHF Yagi; Build a 4 elements yagi The calculations for these antennas are from N3DNO's Antenna Calculator. 7:1 at band edge. The F/B is relative power from the front to the back of the antenna measured from a fixed Sep 2, 2013 · 15 element long range WiFi yagi antenna for 802. 2 METER SSB YAGI PLANS FOR SIDEBAND FUN. 0. A 2-element Yagi can be thought of as a standard driven dipole antenna, with a dipole in parallel that has a short-cicuited feedpont. I would like to feed it with a Hairpin match and a 1:1 current choke. 1875 meters, Dipole to Director Spacing = 0. 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. For the ham building a one off antenna the added complication may be an impediment. V. An antenna I didn't appreciate when I first saw it is the WA5VJB cheap Yagi design. The N5WVX 2 Meter 7 Element Yagi with a "Twist" ( Cool Elements) Based on the 2 Meter Beam Project by Larry Morgan, AG5Z. 2M Yagi Antenna: This antenna is my 'experimental' twist on the tape measure yagi antenna. 2x3=6 (84,913 bytes, PDF file) QST February 2000, pp. Martin has many designs for many antennas and you will definitely find what you want. 8 dBd of gain and and 2. 66 v/f Coaxial Dipoles: There's no Such Thing as a Free Lunch • A Triple 5/8th 2m Collinear. Boom is 1" sq. I figured the gain, front/back isolation, impedance, and other stuff that takes a rocket scientist to figure out, (or at least someone smarter than me, HIHI) with YagiMax 2. I'm an ret Our new property has a smaller footprint which limited the size of the antennas. G0KSC Antennas - free yagi designs for ham radio G0KSC - Simple to build, High Performance Yagi and Quad Antennas - Home of the LFA Yagi - Free Yagi Antenna Designs for Ham Radio Canvey Island, Essex, England Justin@g0ksc. ¼ inch Introduction to QUICK YAGI. Figure 4 — Detail of a 70 cm director A 2 meter (146 Mhz) J-Pole antenna that is inexpensive, and easy to build. The tape measure antenna is a “homebrew” 2-meter antenna made out of PVC pipe and a steel tape measure. For a manufacturer that can be an advantage. 00. The tip-to-tip length of these elements is about 1/2 wavelength. The 2 Meter band tape measure beam antenna is a 3 element Yagi with about 7. Oct 1, 2020 · I have a fine dual band omni directional antenna on my roof about 25' above ground level. It works well for extending the range of an HT, transmitter hunting, SSB, or general use. Estimated at (12. The total length of the dipole is 30 cm. (If you wish, you may download YagiMax, and the data files for these antennas here. The spacing are the same between the elements and when built successfully it will give you a very desirable 9. Click the link to learn more about my experience. Since the moon subtends an arc one-half degree as seen from earth, the antenna is viewing a large portion of the noisy sky around the moon. You can purchase this antenna from Moonraker. It describes how to check the antenna with a field-strength meter, or by using DIY 5$ Portable VHF Yagi Antenna for the 2 Meter Band (144-146 MHz) by F4HWK: In this publication i explain how to build a very light weight, cheap, easy to build and deployable in 30 seconds portable VHF antenna for the 2 meter band. 35-37 This novel wire antenna is great for permanent or portable, QRO or QRP, and old Aug 19, 2021 · For completeness this is not the only DIY tape measure Yagi on Instructables so also check out [FN64’s] 2 m band “Radio Direction Finding Antenna for VHF” and [manuka’s] 70 cm band “433 All of the aluminium used for this antenna came from a disused 6m Yagi and a scrap 2m ZL special. 1 out of 5 stars 67 Mar 26, 2023 · A simple 2-element quad for 2m. Jun 8, 2022 · Build a Yagi antenna structure as shown in Figure 1, consists of an active element, a reflector, and a number of directors. Apr 12, 2020 · Based on Cebik W4RNL (sk) design that is reproducible. 6 dBd Gain and Boom Length to 39 λ. So what size would be worthy to try? Something 75 to 100 feet might be manageable. The YT clowns have probably never heard of antenna modeling. The little antenna performs very well and should be durable enough to hold up through many moves. Figure 3 — Elements mounted to boom of 2 meter antenna. This page has a variety of calculators that can be used to calculate dimensions for practical antennas for 6, 10, 11, 12, 15, 17 and 20 Meter Yagi Antennas. Editor's note: Many years ago, the 10 meter version of this 2 element Yagi was built by myself using much the same construction techniques as mentioned in the article using small aluminum tubing. net/dk7zb/ The possibilities are limitless. At 6 meters and above it is advantageous to have some gain (directivity) and front to back ratio (F/B) in an antenna system. Here is a simple 2-element quad for 2m that is easy to build and does a good job. Plans are available from https://www. Feb 15, 2023 · 3-element wire yagi supported between two trees. Mar 7, 2016 ·      A half wave dipole on an 80m is about 130 feet or 40 meters long. 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. I, like many readers, have built numerous 'tape measure' style antennae for the odd field day or DF event and whilst they do the job admirably I have a few issues with them; F… Aug 13, 2010 · Yagi’s are great gain antennas for the home builder, I built a 2 meter, 5 element beam out of old TV antennas that I harvested for parts, and the SWR only goes from 1. For this tutorial, I built 3 Yagi’s for 1. The antenna is useful (especially if you want a portable antenna for back packing etc. Good DIY project using simple tools and parts. 89) • 3/8-24 x 36” all-thread rod (Elliot’s $2. Most of us humans think an element that long is difficult to build an rotate much less keep up in the air reliably even for a single winter. In order to transform this piece of coaxial line into antenna you need to remove a bread shield in the middle of the coax, and solder braid shield to a central conductor at its both ends (cf. Build a truly portable 3-element Yagi-Uda antenna that does not require a matching element. Arrow II Yagi Antennas: Model # Description 146-4 Four Element Portable Yagi - there is even an Optional M/B II Mounting Bracket for it. If what you want is a good, easy-to-build antenna for 144, 220, or 432 MHz, the quagi may be your answer. The Yagi has three forward lobes (according to the three current maxima in the 3/2-lambda-radiator) with 5,39dBd - 4,35dBd -5,39dBd gain. 66 meters, Reflector to Dipole Spacing = 0. 3 GHz seems to be gaining popularity. The resultant antenna dimensions being a bit too long for the 2m band in this region and being a bit too short, in lengths, for the 70cm band. U. Is this the best Horizontal/vertical 2m Yagi antenna for the money? Lets take a look at the construction and how it is to build. I like to Feb 7, 2017 · On this episode of Ham Radio Q&A, I build a 2 meter tape measure yagi antenna. Measurement results for the S11 (or SWR) are… 2 Meter 3 Element Quad Direct coax feed! The Quad antenna, sometimes called the Cubical Quad, is an antenna which is used by many amateur radio operators. Still, if I had to use a 2 meter antenna indoors I would use a Diamond X50A. 39dBi Since most TV antennas are what is known as a Log-Periodic Dipole Array (LPDA) that the elements are in a Vee configuration, that would make re-building the TV antenna into a 2 meter Yagi more difficult. The tape measure antenna is a "home brew" 2 meter antenna made out of PVC pipe and a steel tape measure. RUZ Antenna; Building a T-Antenna; Suction Mount Antenna; Tape Measure VHF/UHF Yagi Antenna; Temporary Car Antenna Mount; Battery Information; Grounding and Bonding; Homebrewing Equipment; Installation Tips, Tricks, and Ideas; Pixie 1/2 Watt CW 40 Meter Transceiver Kit; QSX – Kit Build an All Band All-Mode 10-watt Radio; Soldering In this video I show a article from QST magazine that is from April 1993 on how to build a 2 meter Yagi for 7 bucks. eu/hlp-2-144mhz-2m-halo-loop-folded-dipole-antenna-3596As you ca This Antenna Must be End Mounted (as shown) With the M/B Mounting Bracket included . For more information about Some well-designed and easy-to-build antennas for the 12- and 17-meter bands. 5 MHz. com/3-elements-yagi Oct 26, 2020 · Ailunce AY04 Ham Radio Yagi Antenna,VHF/UHF Outdoor Yagi Antenna,9. Moore (patent no. 5 dBi/11. Feb 7, 2017 · The 2 Meter band tape measure beam antenna is a 3 element Yagi with about 7. 5dBi 100W Yagi Antenna 8 Element Beam 2 Meter/70 cm VHF/UHF Outdoor Yagi Antenna with U-Bolt for 144/430Mhz Ham Mobile Digital Radio/Repeater (TC-YG08UV) 3. begun to be explored by radio amateurs. Hewes. Mar 19, 2023 · Those work ok on 2 m but on 70 cm the radiation pattern is terrible. Nov 19, 2018 · Build your own 2m/70cm 3 Elements VHF by 5 Elements UHF Yagi antenna with excellent gain for both VHF and UHF operation. Next up in my six-meter antenna journey was trying to find a bit more gain while still fitting the antenna into my yard. The older "Quick Yagi" program was used in its design. They just aren't needed for this particular application. THE KD5IVP Backpacker Yagi. If you build the antenna as shown, the computer model predicts 11 dBi gain and a front-to-back ratio of 20 dB. Blue plot is the phased design, black the three element refl ector/director and red a two element Yagi. wide-band Yagi designs for 10 meters at 28. eu via the following link:https://www. Shop now. Six Meter Yagis — 3 Elements. 6 dBd or a Boom Length > 39 λ will limit the design to 21. REDUCING THE SIZE OF A YAGI. So how do we shrink the length and maintain most of the performance and efficiency Feb 28, 2000 · VE3CUI 2021-12-22; Two Element Yagi Ideas for 12-Meters and 17-Meters; Hey, I take absolutely NOTHING away whatsoever from anyone who has the ability to exercise such obvious due diligence on the computer, & come-up with something as detailed & well-documented as this antenna article is Sep 22, 2020 · This approach would quickly reach the point of diminishing returns, so I needed another solution. The element lengths and spacings are a combination of info from the ARRL Antenna Book section on 2 meter Yagi antennas, and from experiments with a field strength meter and different length elements and spacings. Version 1: 144-146MHz broadband. Longer antennas can be hung from a rope boom between two While this antenna is designed for VHF two-meter operations, it can easily be redesigned for other frequencies like 1. EXAMPLE of 3 element Yagi Antenna calculator: INPUTS : Operating Frequency (MHz) = 200 OUTPUTS: Reflector Length = 0. Plans for a 20 Meter Yagi Antenna category is a curation of 19 web resources on , Monoband Yagi for 20 meters, 3 elements Yagi for 20 meters, 2-Element-Yagis for HF. photo). Check out the Ham Radio Adve SEE A 6 ELEMENT 2 METER SSB (144. The antenna falls into the category of utility beams, since it has modest forward gain, good front-to-back ratio, and a very wide operating bandwidth in all performance categories. We offer a huge selection of Yagi antennas, including cross-polarized and circularly polarized, from top brands like M2 Antennas, Cushcraft, MFJ, and Diamond Antenna. 2×4 2m/70cm Compact Satt Comm Antenna; 2×3 2m/70cm Cross Yagi – compact build; Build 3 x 5 2m/70cm Cross Yagi 145-435Mhz; Build the 3 x 5 Elements 2m/70cm Yagi; VHF antenna’s. This antenna was built in about an hour after using K6STI's AO simulation software to design it. "Local" in Crosby, North Dakota, means 50 to 60 miles as the crow flies! I knew there were plenty of VHF antenna Mar 12, 2014 · Building the ultimate 2 meter ham radio beam antenna with local parts. That would seem to be usable in walking hunts and in a driving hunt when you get closer to the target. The Tape-Measure antenna is a simple, hand-held 2 meter Yagi; that is fun and inexpensive and easily to build. There are many websites that will calculate the length of and length between the elements on a Yagi-Uda antenna. Even at 50 MHz, a quagi of this design would be too big for the author’s portable expeditions and contest work. 2 db of forward gain. A simple, compact and effective antenna for 50 Mhz. That’s how, about 4 years ago, I decided to build an antenna. 7095 meters, Director Length = 0. HYS Dual-Band 9. Part 1 of 2. One good suggestion is the "Ugly Balun Project" as seen on this site. Use the following entry areas to define your antenna requirements. 6dB colinear VHF antenna Building details of a VHF colinear antenna with 6 db gain 5/8 Collinear antenna A 5/8 wave stacked j-pole antenna plan 9 element yagi for 2 boom Yagi for 2 meter EME has just 11 elements. “Radio Data Reference Book” (ISBN: 1872309305) Radio Society of Great Britain; 6th edition (November 1995) Unknown Author (N4UJW?). 21. Pass the coax through the hole, leaving the BNC connector's Jun 12, 2017 · This is a 3 elements yagi for the amateur band center @145Mhz - the build and measurements instructions can be found here: https://dw1zws. A Five-Element, 2-Meter Yagi for $20 (457,324 bytes, PDF file) Need a 2-meter beam antenna, but you're short on cash? You can build this antenna for the cost of a fast-food meal! hen I became active on 2-meter FM, I soon discovered that I needed a beam antenna to hit some of the local repeaters. 5 dBi SL16-Female Directional Antenna,for Retevis RA25 RT95 RT97 RT97P Amateur Radio Mobile Transceiver Repeater(1 Pack) 4. co. The feedline would connect at the angle in the center element. To be prec The tape measure antenna is a simple, hand-held 2 meter Yagi; that is fun, inexpensive, easy to build. 92 MHz Yagi Antenna - Unknown Author Drill or cut a small hole in to the bicycle hand grip so that the BNC connector will fit. 25 meter, 70 cm or 33 cm. S. 2), with a radius of 0. 2-meter yagi beam antennas are very reasonably priced, and I found the Diamond A144S10 Base Station Yagi Beam Antenna for under $95. It works great and is very easy to build from coax and PVC pipe and a few plastic wire ties. 20 each) Here's a simple Saturday project: build a portable VHF yagi antenna for 2 meters. A Three Element Lightweight Monobander for 14 MHz QST July 2001, pp. A 3-element 2m yagi with a wood boom is my wife’s favorite for ARDF. A gamma-match serves a triple purpose: As a small diameter wire parallel and in close vicinity with the main radiating element, it will carry only a fraction of the main element current while being exposed to the same electrical field strength. Low Noise LFA Yagis designed by G0KSC free to build for personal use. We can use this Yagi without any changes on 2m and 70cm. Yagi Antenna Design program by WA7RAI called Quick Yagi (QY4) This antenna progam is no longer supported but you may be able to find it by doing a web search. Here i present all steps to build this antenna. A simple design using dipole driven elements. For more information about this antenna: Dec 5, 2010 · How to build a ham radio tri-band 6 meter, 2 meter & 70 cm yagi beam antenna using an old TV antenna for parts. It's hot weather in Texas in July and Larry Parker, N5WVX, shows us a novel way to make these "cool" elements for a 2 meter Yagi and also his method of building a gamma match. Unlike most antenna designs on this site which are omni directional, this antenna type is very directional and has been constructed to facilitate the reception of telemetry signals from the smart falconry telemetry project. The antenna has a single reflector and two directors along with t May 2, 2020 · I show you how to quickly build a DK7ZB yagi with 4 elements on 2m and 5 elements on 70cm with minimal tools. This antenna is designed for amateur band frequency for both VHF (2m) and UHF (70cm). We wanted to try and catch the summer magic. 2,537,191), W9LZX, (SK), an engineer at HCJB, 7-Element-Yagi for the 2m-Band with the 28-Ohm-DK7ZB-Match. Although it was intended that an old TV beam be used to build this antenna, I had already bought some aluminium with the building of a 2 meter Yagi in mind, though not yet having decided on any design. 2 Elements Yagi 144Mhz; 7 Elements Yagi for 146Mhz band build; 2 Elements Yagi build for 107Mhz FM Band; Build the 5 Elements 2m VHF Yagi; Build a 4 elements yagi Aug 21, 2017 · 2×4 2m/70cm Compact Satt Comm Antenna; 2×3 2m/70cm Cross Yagi – compact build; Build 3 x 5 2m/70cm Cross Yagi 145-435Mhz; Build the 3 x 5 Elements 2m/70cm Yagi; VHF antenna’s. This 6 element beam was designed using the free. 7425 meters, Dipole Length = 0. A 2 element beam antenna for 10 meters band. The page will operate below the lower limits, 11. In this tutorial I will discuss a little bit of theory behind the Yagi and then go into the design and construction. Which is slightly longer than the active element reflector to reflect the energy role, and slightly shorter than the active element to guide the role of energy. It needed to be dual purpose in that the mast may be used for tarp/shelter support. In Line (Direct Feed) Gamma Match with SO239 or N; Type Connector (2:1 Bandwidth is over 4 MHz. Tube, Length is 48 inches. YAGI DESIGN BASICS _____ The yagi antenna has been with us for more than half a century now, but. "Local" in Crosby, North Dakota, means 50 to 60 miles as the crow flies! I knew there were plenty of VHF antenna Figure 2 — Fabrication details of the mounting brackets needed for the 70 cm antenna. (M/B Mounting Bracket) Mounts on a mast up to 1 1/2 inches. Hopefully, this software package SEE A 6 ELEMENT 2 METER SSB (144. This lightweight antenna is perfect to use for fox hunts or Nov 2, 2023 · Posted in Radio Hacks Tagged 2 meter, amateur radio, antenna, copper foil, ham, tyvek, yagi, yagi-uda Post navigation ← 2000-Year Old Charred Manuscripts Reveal Their Secrets You will find one decent design that will use the pieces you have in the article "7 dB for 7 bucks", by Nathan Loucks, WB0CMT, which has a basic construction as follows: The article recommends that if your radio is further than 15 feet you'll want a good low loss cable such as RG-213. Whether you’re operating on 2 meters or you work in the 1. qsl. Can the Hairpin rods face the Dec 21, 2010 · How to build a ham radio 2 meter 4 element yagi beam antenna with a gamma match using parts from an old T. All the hairpins I have seen are on a beam of 3 or more elements with the hairpin rods facing the director elements. 5/11. • As Simple as it Gets - Build a 2m VHF Dipole - Ideal for Novices • Wide-band a 3-Element Yagi • Build a 6m 2-Element Yagi • A 6m 3 Ele Yagi Built Two Ways • Matching with a Hairpin Match • Match a Single Element Delta • 0. -Ultralight-Yagi for 2m can be used on 70cm with an SWR of 1,5 without any changes. While you may not have the space for a large array, there is a lot to be gained from simple, 2 and 3 Element arrays. Remove the shield from the DE about . I designed this antenna with a specific purpose in mind, that is, to provide the lightest, most collapsible Yagi antenna possible for backpacking. Figure 2 — 10 meter (28-29 MHz) free-space gain curves for the three wide-band Yagis. The initial design was based on a 4 element Yagi for 24Mhz (12 Meter Ham Band) from the 19th edition of the ARRL Antenna Book (which also contains great detail on the physical construction of Yagi antennas). 2 Elements Yagi 144Mhz; 7 Elements Yagi for 146Mhz band build; 2 Elements Yagi build for 107Mhz FM Band; Build the 5 Elements 2m VHF Yagi; Build a 4 elements yagi Once the antenna and matching network are designed and debugged reproduction is easy. YAGI ANTENNA DESIGN BASICS. 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. This lightweight antenna is perfect to use for fox hunts or as a portable directional antenna for public service events. Version 2: 144-145 MHz for SSB/CW use. The SWR chart on the right show the General Coverage antenna's SWR performance, within the 15 Meter band. Feb 7, 2017 · On this episode of Ham Radio Q&A, I build a 2 meter tape measure yagi antenna. 6 dBi of free-space gain with the unwanted lobes suppressed by 20 dB--a reasonably clean pattern. A lightweight antenna deserves a light- weight feedline! RG-8X (or mini-8) foam coax provides an ideal feed for tlie Fe~ith- er~jeiglzt antenna. There are plenty of plans online to build your own tape measure antenna, but no good step by step video that takes you through the process. With inflation you might actually be abl Jun 8, 2020 · This is easily my favorite six-meter antenna. So I make do with a long, thin random wire that works nicely as long as the New England wind, snow and ice don’t conspire to give my hamming a holiday (which happens more often than I’d like). This being my first antenna that I Jan 5, 2019 · In this video I show the setup and configuration of a 6 element 2 meter Yagi I used for a recent ham radio fox hunt, also known as a transmitter hunt. We quickly caught the bug for DXing and I started looking for 6 Meter antennas. I simulated the same dimensions with 8 mm and 6 mm e Aug 8, 2018 · 2×4 2m/70cm Compact Satt Comm Antenna; 2×3 2m/70cm Cross Yagi – compact build; Build 3 x 5 2m/70cm Cross Yagi 145-435Mhz; Build the 3 x 5 Elements 2m/70cm Yagi; VHF antenna’s. J. The pattern and the currents of the Yagi are shown down. 28-31 A portable easy to build light weight antenna A Portable 2-Element Triband Yagi QST November 2001, pp. Uda Yagi Antenna dimension calculator Back to Antenna calculator overview. 73, Keith WB2VUO. Dec 21, 2010 · How to build a ham radio 2 meter 4 element yagi beam antenna with a gamma match using parts from an old T. 2:1 at center frequency and 1. ) Mounting Hardware included. 0001 meters. antenna. The antenna has good reflection coefficient and VSWR ratio @ 1. uk May 6, 2022 · This video shows that you can use materials that you have to make an antenna that is not critical at all. I have 75' of LMR-400 coaxial cable going to that antenna. QUICKYAGI . Jun 26, 2010 · So by request I am finally writing a DIY Yagi antenna tutorial. 2) and (Dir/2, RefToDir, 0. The driven element of this Yagi is a folded dipole which i made from a piece of RG316 cable. The driven element feed point has a impedance of 28 Ohms, so a quater wave transmission line transformer with a characteristic impedance of 37. 2 λ Boom Length, but the output data may not be accurate. The dipole centers from the 2m / 6m antennas are also utilised here. Specifying a Gain > 21. Resources listed under 20 meter yagi category belongs to 20M main collection, and get reviewed and rated by amateur radio operators. 9 out of 5 stars 97 An easy to build ham radio 2 meter yagi antenna made with coat hangers. The 4-El. G0KSC - Free Antenna Designs for Ham Radio. 2 METER SSB YAGI PLANS FOR SIDEBAND FUN This 6 element beam was designed using the free Yagi Antenna Design program by WA7RAI called Quick Yagi (QY4) This antenna progam is no longer supported but you may be able to find it by doing a web search. For longer runs, use an ultra- Feb 13, 2016 · Build a portable VHF yagi antenna for 2 meters. 40 meter Yagi antennas, are complex to build due to the overall antenna dimension, and the world wide web unfortunately does not offer many projects, but we discovered some realizations that could inspire you to build one. Directional Antennas for RDF discusses different types of antenna systems and what factors are most important when using them for direction-finding. It has 11. When not in use it comes apart for storage. 6 dBi gain, so should work well. 6 meter, 2 element yagi. We owe it's development to Clarence C. 5 dbd ) this video shows how to build it and the parts you will need, In the April 1993 QST, Nathan Loucks, WB0CMT, (no longer active) described a 2 meter beam, (Yagi) with a PVC boom shown in the drawing below. I als A conventional Yagi may well deliver more gain per pound or per square foot of wind load at 20 meters. Shorter antennas, particularly the 2-element designs, may be supported from a cross spreader on top of a single mast, and rotated by untying and moving the bottoms of the ropes. last updated 26 March 2023. I apologize for the shaky video. @146. · The power source Jan 30, 2012 · “Yagi Antenna Design”. Here's a no matching network Yagi. com. The next thing I thought about was improving the antenna. We may reduce the physical length of these elements, as long as their electrical length remains unchanged. A General Coverage frequency (21. I did a fair bit of review of the available options and selected the InnovAntennas 3-element LFA. The reflector and director element spacings are equal at 16 inches. I have received ISS SSTV signals on that antenna from different pass angles and the results were junk. In typical Zack Lau, W1VT fashion, the element and mounting clamps are machined, but good ol’ hose clamps and hardware store mast mountings will work on this 4-element antenna. PDF (Sept 2011) G. The diagram below contains all the information you would need to build a 2-Element 15 Meter antenna. Version 3: 144-144,8 MHz for EME/SSB/CW use. ) While it Apr 6, 2005 · I'm building a 2 element yagi with a direct fed isolated split driven element. When we started to put our shack together, it was decided that 10 Meter fixed dipole would be our 1st antenna. A 2-element quad for 2m is my most common antenna for mobile transmitter hunts, and is simple to build. Most smaller 2m antenna arrays used for EME have a half power beamwidth of approximately 30 degrees for a single yagi to about 15 degrees for a four yagi array. This antenna (Version 1) was described in the issue 2/2000 of the magazine "FUNKAMATEUR" , report "Kurze Yagis f r das 2m-Band in bew hrter 28-Ohm-Technik". Cebik, W4RNL. It was installed on a short mast about 15 to 17 feet Dec 18, 2012 · Use a pencil and ruler to draw a centerline down one long side of the wooden beam. moonraker. May 27, 2020 · Learn How To Build Your Own DIY Yagi Antenna With This Tutorial From EEWeb. 20m Boom. Two are required. Yagi Designer / Analyzer / Optimizer. You may wish to read further about tuning adjustments in The ARRL Handbook. I struggled to break the pileups with a small mast and trap dipole and decided to build a 35 foot telescoping mast with a small yagi on top. Need a 2-meter beam antenna, but you're short on cash? You can build this antenna for the cost of a fast-food meal! hen I became active on 2-meter FM, I soon discovered that I needed a beam antenna to hit some of the local repeaters. 146-3 Three Element Portable Hand Held Yagi - for 2 Meters 146-2 Two Element Portable Hand Held Yagi - for 2 Meters 216-7 Seven Element Portable Hand Held Yagi - for falconry 220-3 To build the 4 Elements Yagi you may follow the direction for building the 3 Elements Yagi except that you will add an additional parasitic element (director) which is about 5% shorter than the last element of the 3 elements yagi. R Jessob, and R. Link to This page contains construction details on a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use. This sketch shows a semi-exploded view of the antenna. 4 across the band Subject: 2 meter dipole antennas Date: Mon, 10 Sep 2007 12:45:54 -0500 From: Bain Adam Cheap and easy to build Yagi Antennas from the Clear Lake Amateur Radio Club . Nov 14, 2020 · An antenna for 6 meters. This article has been edited from the original QST article with added information that may be helpful to some builders desiring to build the antenna for 2 meters. Prepare the antenna's boom from two pieces of 3/4" CPVC plastic plumbing Some well-designed and easy-to-build antennas for the 12- and 17-meter bands. The director with Celcon insulator and stud/rod detent washer are clearly visible, as is the driven element feed point with plastic plate. This particular design appealed to me because although having seven elements, was shorter than other designs I had seen. 11 b/g/n. 6 METER 6 ELEMENT SSB YAGI PLANS FOR 6 METER SIDEBAND FUN Yagi Antenna Design program by WA7RAI called Quick Yagi (QY4) This 6 meter 6 element SSB yagi was designed and optimized for best feed match using 50. . Elements are 1/4" Solid Aluminum. 250) DESIGN HERE Further information on antenna design and feed systems, see The Radio Amateurs Handbook, The ARRL Antenna Handbook, Dr. 2 According to Yagi Analyzer, the simple program that comes with The ARRL Antenna Book,3 the antenna has 10. A standard Jan 30, 2016 · In the week when we celebrates Hidetsugu Yagi’s 130th Birthday we selected 5 homemade Yagi-Uda Antenna Project for the 7 MHz. Here's a simple Saturday project: build a portable VHF yagi antenna for 2 meters. The antenna was then taken to a hilltop near Rainier, Oregon (CN86) where it was deployed on a 12 foot mast for the 6 meter sprint contest. In a past issue of AntenneX, I described the properties of a 2-meter Moxon rectangle and surveyed some potential uses for the antenna. 2 GHz band, DX Engineering has a VHF/UHF beam antenna that can deliver the clean, clear signal you demand. 59) • 3/8-24 locking nuts, 3 each (Elliot’s $0. 35-37 This novel wire antenna is great for permanent or portable, QRO or QRP, and old Don Murray W9VE Building a Dual-Band Antenna Mentorfest 10/23/04 9 J-pole construction – Required Materials • ½” EMT conduit, 10’ section (Home Despot $2. Consider a 2 Element Yagi this Antenna season. 3 GHz Yagi off the shelf and 1. 2 Elements Yagi 144Mhz; 7 Elements Yagi for 146Mhz band build; 2 Elements Yagi build for 107Mhz FM Band; Build the 5 Elements 2m VHF Yagi; Build a 4 elements yagi Jun 24, 2020 · Figure 2: 4NEC2 Simulation SWR results for single radiator, dual band, 2m/7cm antenna As can be seen in Figure 3, there is a minimum SWR crossover point at around 145/445 MHz. Building a 2-Meter Moxon L. Dec 27, 2020 · This was a long project that worked out very well. A better design is to make a 2 m dipole with one (or two) closely spaced (about 1 inch) 70 cm 1/2 wave parasitic element (also called coupled resonator). 2 to 1. Simple 3 element Yagi Beam Calculator for Amateur Radio: Select number of elements: 2 3 Enter frequency: Element Feet Inches Metres Reflector: Driven Ele: Jan 26, 2017 · Challenged myself to build a usable Yagi style antenna for the 2 Meter (2M - 144MHz) amateur radio band. The 1st DIR length was calculated by reducing the dimensional length of the DE by . Living in a condo has many advantages, none of which is being able to mount a tribander on a 60-foot tower. L. There are almost innumerable ways to build the antenna--that is, ways to support the elements. Sometimes you can find a LDPA whose elements are perpendicular to the antennas main boom section, those are the ones that can be rebuilt. 2 MHz) is selected as this provides the best coverage of the 15 Meter band. This Yagi should be used with a 1:1 balun for best performance and to help eliminate TVI. “Basic Yagi Antenna Design For The Experimenter”. We have examined a design for a dual-band directional antenna for 2 meters and 70 cm. How To. only with the recent advent of the personal computer has its real potential. I wonder if it is possible to build a smaller yagi (1/4 wave) that wouldn't have much gain but would still be directional in the 2-meter band. Antennas. Jul 13, 2020 · This video clip describes my build of a four element 2m portable amateur band Yagi antenna. 125MHz as the center frequency which is in the SSB portion of the 6 meter band. Apr 4, 2023 · The important thing in a fox hunt like this is antenna directivity, rather than gain. 3%. Lawson's Yagi Antenna Design (ARRL), or Bill Orr's Radio Engineer's Handbook, to name only a few. S Department of Commerce/NBS Tech Note 688 (Dec 1976). B. dzyo rlya wryan oahy ignrn rrv bfhql vdxc tqtdu zhdtwhw