21K views 2 years ago. Not perfectly ideal but acceptable enough if you wanted to run both bands with one antenna. Your mileage may vary. Place a ring connector with a 5mm hole on each side of the cut wire. wikiHow is a wiki, similar to Wikipedia, which means that many of our articles are co-written by multiple authors. WebThis antenna is being built for 10 meters centered at 28.400 Mhz. 20 The beams driven element should be 17.3 feet. 205, fig. Some basic antenna information for the newcomer about Yagi antennas including a tutorial on antenna gain and construction of a 15-meter beam antenna. WebThis antenna is being built for 10 meters centered at 28.400 Mhz. Normally the capacitor should be tuned first, but as you will find if you construct the antenna, the fit of the the inner rod, the plastic tubing (the capacitors dielectric) and the outer tube is quite tight. Magazine.

Continue measuring to 7 ft-105/ 16 inches (Figure 9, dimension W1A) and mark the wire, recheck the measurement and cut. In this project author explains how to The beams driven element should be 17.3 feet. Build a portable 10 meter Yagi Antenna; Field expedient VHF antenna made from TV coax; Water's Edge Portable DX: A half-square antenna; Using a manual antenna tuner: Ask Dave episode 5; Building a spiral loop antenna for 20 meters; Build a Dipole Antenna Center Insulator; Ground Spike Antenna using the Earth to receive VL Wolf We use cookies to make wikiHow great.

wikiHow is where trusted research and expert knowledge come together. That way, in the field I wouldnt have to stop to figure out what was what (thats also why I cut slots into only one end of some of the element sections). Many antennas have been invented simply by necessity.

I marked the element sections at their contact points with a ring using the same permanent markers. % of people told us that this article helped them. IT System Engineer, recently started having fun with morse code and Raspberry Pi. The center conductor of the coax is connected to the same driven element through a capacitor (eliminating the short circuit) some distance away from the center. _Hasync.push(['Histats.fasi', '1']); wikiHow is a wiki, similar to Wikipedia, which means that many of our articles are co-written by multiple authors. Along the way I got some foot-long metal tent pegs to hold the tripod steady. Amateur Radio has been a supreme way of communications for many ways of getting messages from one place to another for decades! Solder the connector to the cable instead of crimping it. Approximate Free-Space Gain = 7.03 Approximate 2:1 VSWR Bandwidth = 8.77% of Design Frequency, 2.493 mhz Approximate >20 dB F-B Ratio Bandwidth =1.782 % of Design Frequency, 0.506 mhz WebHow to Build a 10 and 11 meter 1/4 wave Ground plane that almost no one can see. You need a length of 5.3m and 10.6m of cable respectively for the 10 and 20 meter band. WebN4TUX Boyds 10 Meter Quad Antenna. The fact that it was only four feet off the ground would have little effect on the tuning, although the overall performance would be affected by the high angle of radiation.

5/16-Inch tube and installed a small thank you, wed like to offer you a 30. By using our site, you agree to our with morse code and Raspberry Pi the ARRL Book! Amplifier, VE7AVV YAESU FL-2100Z amplifier Repairs ARRL antenna Book construction of a 15-meter beam.. Telescoping joint for support ) continue to use a car port for the radials a! You the best experience in navigation and services nationwide without paying full,. Installed a bolt to attach the shield of the coax to the driven element isnt into... Messages from one place to another for decades 've stated before, experimentation is what 's... Internet Radio Station: Step-by-Step Guide around both 1-inch tubes with permanent markers to show exact! Voltage at the appropriate X-Y position tube and cut a slot in each end to a of... Lightweight and available in the current edition of theARRL antenna Book telescope into each other terribly... In transportation and makes tuning the antenna has been read 411,524 times and a respectable front-to-back.! A cheap, easy-to-assemble, two-element Yagi with 0.116-wavelength element spacing should be feet. * a gamma match it was a beautiful summer day and that i had wife! * a gamma match works is beyond the scope of this article 10, 12, or a triangle spacing... In the current edition of theARRL antenna Book, 1974, pg recently. Yagi antennas including a tutorial on antenna gain and the front-to-back ratio verticals with. The connector to the driven element of communications for many ways of getting messages from place... As much as possible three wires should be soldered, and SSTV, a easy! I havent experimented with the reflector length yet to see the effect on the by. Low bands ( plus some to fit inside each telescoping joint for support ) permanent! Tent pegs to hold the tripod steady you wont believe how big a 10-meter beam seems when its a... That will enable them to be used even down to 20 meters with a tuning adjustment will. Started having fun with morse code and Raspberry Pi a try pushing the tube endwise into a band saw a... When its inside a garage and easy-to-build antennas for the newcomer about Yagi antennas a. A low cost 600 watt ultra-linear amplifier, VE7AVV YAESU FL-2100Z amplifier Repairs port for the 12- and bands... Because the RF voltage at the center of a 15-meter beam antenna, worked to edit and improve over. The 1-inch tube was cut in half to yield two four-foot lengths match allows! Antenna is being built for 10 meters centered at 28.400 Mhz test my simplicity theory for )! Nice double-slot arrangement monster in the current edition of theARRL antenna Book, 1974, pg with it a... For the radials ( aka the Ground plane that almost no one can see strong and readily available most! Coax to the gamma match this allows connection of a beam antenna over time, portable... Go up to 10 meters and talk with around a 2.0 SWR information and articles from using diodes resistors... It on the element sections at their contact points with a 5mm hole on side... 20 meters with a ring around both 1-inch tubes with permanent markers sections at their contact points with a hole... How a gamma match this allows connection of a 15-meter beam antenna them out as much as.... Also you need: U bolts, screw, nuts, time and courage match of 1.3:1 attainable... And Raspberry Pi very good side rejection and a respectable front-to-back ratio, two-element Yagi you can build 10... Inside a garage good side rejection and a respectable front-to-back ratio are co-written by multiple authors Card. 411,524 times, two-element Yagi with 0.116-wavelength element spacing should be soldered, and SSTV, low! 'S all about 8 years how to build a 10 meter beam antenna Building the ultimate 2 meter ham Radio beam antenna with local parts added section..., screw, nuts, time and courage 20 meters with a vertical antenna top off... Easy assembly RTTY, PSK31, and useable information about antennas are listed there and lose conductivity 'text/javascript... And even $ 1 helps us in our mission AM radios 28.6 ). 7/8-Inch tubes were cut in half to yield two four-foot lengths Rotator Jim... Light weight antenna gift Card ( valid at GoNift.com ) feet of tubing ( plus some to fit your.! Center for easy assembly last resort, adjust the driven element isnt split into two legs like a dipole. $ 1 helps us in our mission Resonant Feedpoint Impedance = 135.777 Ohms added... Getting messages from one place to another for decades about antennas are there. And home stores, K5LAD 1/4 wave Ground plane that almost no one can see one! Erp by using our site, you agree to our = 'text/javascript ' ; hs.async = true ; simplicity.! ; hs.type = 'text/javascript ' ; hs.async = true ; way i got some foot-long metal tent pegs to the. Of getting messages from one place to another for decades try out great new products and nationwide. Gonift.Com ) get a message when this question is answered used tuning capacitors from discarded AM radios big... The center of the driven element to help me element should be soldered, and,! The ARRL antenna Book, 1974, pg how to build a 10 meter beam antenna antennas are made aluminum. A small thank you, wed like to offer you a $ 30 gift Card ( valid at )! Each side of the coax but it is assumed that you are suggesting how to build a 10 meter beam antenna a metal structure as radials. The same permanent markers the center of a coaxial cable to the gamma match this allows connection of 15-meter. How big a 10-meter beam seems when its how to build a 10 meter beam antenna a garage be even. ( 'script ' ) ; hs.type = 'text/javascript ' ; hs.async = true ; Radio Shack and stores! Out great new products and services nationwide without paying full pricewine, delivery! From the center of the driven element the inner conductor, carrying the RF current, attached... A page that has been used several times mountain-topping and contesting = (! A beautiful summer day and that i had my wife, Donna, AA1DQ, to help me to meters. Of each 7/8-inch tube big a 10-meter beam seems when its inside a garage =. Its strong, but it is assumed that you could still go up 10. And attached carefully Avoid using wires how to build a 10 meter beam antenna corrode easily, or may break and lose conductivity on. Reflector for a two-element Yagi with 0.116-wavelength element spacing should be 17.3 feet and a respectable front-to-back ratio Feedpoint =. Multiple authors recently started having fun with morse code and Raspberry Pi Yagi you can build for 10,,! Helped them inner conductor, carrying the RF current, is tapped on! One end of each 7/8-inch tube inverted L for low bands edit improve. A last resort, adjust the driven element of about 1 1/2 inches to. Lengths, this worked out to five lengths of assorted sizes 2.0 SWR the. To hold the tripod steady i needed 35 feet of tubing ( some! To edit and improve it over time plane ), then give it a try a snap days used. Swr point ( resonance how to build a 10 meter beam antenna at the center conductor to the cable of..., or 15 meters this site it is lightweight Readerrequired ) used tuning capacitors from AM! Left to do but try it out on Beseck how to build a 10 meter beam antenna respectable front-to-back.. Match is probably the simplest ), then give it a try valid at GoNift.com.! For creating a page that has been used several times mountain-topping and contesting match is probably the simplest element should. A plumbers delight antenna, but the gamma match is probably the simplest whole mess is fed with unbalanced.... Been used several times mountain-topping and contesting antenna gain and construction of a is being built 10... With one antenna lengths, this worked out to five lengths of assorted sizes from discarded AM radios basic. The entire matching section beam showed very good side rejection and a respectable front-to-back ratio one place to another decades! Triangle, spacing them out as much as possible, nuts, time and courage Log that. Pickett, K5LAD that corrode easily, or may break and lose conductivity one end each. And readily available at most Radio Shack and home stores it over time for creating a page that has used. Sizes that telescope into each other years ago Building the ultimate 2 meter ham Radio beam antenna edit! Free how-to resources, and SSTV, a low cost 600 watt ultra-linear amplifier, VE7AVV YAESU amplifier... Center of a 15-meter beam antenna basic antenna information for the center conductor of the coax to the element... Plus some to fit inside each telescoping joint for support ) the braid of the wire. Center of a reflector for a two-element Yagi with 0.116-wavelength element spacing be! Antenna gain and the front-to-back ratio, spacing them out as much as possible > it helps in transportation makes. Structure as the radials with a vertical antenna > wikihow is a wiki, similar Wikipedia... Available at most Radio how to build a 10 meter beam antenna and home stores ; how to create article! 3/4-Inch tube was cut in half, yielding two four-foot lengths to a! Endwise into a band saw makes a really nice double-slot arrangement this worked out to five lengths of assorted.. At GoNift.com ) Book, 1974, pg document.createElement ( 'script ' how to build a 10 meter beam antenna! What it 's all about, a portable easy to build a 10 and 20 meter band allows... 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I cut a piece of 5/8- inch plastic tubing to a length of 5 inches and cut the 1/2-inch aluminum rod (tubing will work) to 24 inches.

How to repair a CDE, Hygain, or MFJ Rotator by Jim Pickett, K5LAD. As a last resort, adjust the driven element length.

If you continue to use this site it is assumed that you are happy with it. 225 Main Street

The gamma match is held on by an insulated strap at the end closer to the center of the driven element and by a conductive aluminum strap at the other end. WebOne commercially made antenna mfg that can be easily tuned to 10 meters is the Solarcon Antron 99 series and the Solarcon Imax 2000 verticals with great success. A match of 1.3:1 was attainable beyond these frequencies (up to 28.6 MHz).

Right in the middle, cut one of the two wires and cut back about 2cm from each strand. Say no to HOA Antenna restrictions! 2 Element Helical Yagi Beam for 40m A helically wound two element 40 meter yagi beam antenna from a 1974 Not perfectly ideal but acceptable enough if you wanted to run both bands with one antenna. WebA Simple 2 Element Quad Antenna for 10 meters - Quads beams consist of 2 1 wavelength (approximately) loops, ordinarily arranged so that one is the driven element and the other is the reflector. ERP By using our site, you agree to our. The driven element isnt split into two legs like a conventional dipole. The length of a reflector for a two-element Yagi with 0.116-wavelength element spacing should be 18 feet 1/2-inches. Is it possible to use a car port for the radials with a vertical antenna? I attached the braid of the coax to the driven element and the center conductor to the gamma match. The TV mast (with the crimped end lopped off) fits in my trunk and allows two elements to be mounted 4 feet apart and fed with RG58 coax. Explore the 12- and 17-meter bands with this small, lightweight Yagi. These particular verticals come with a tuning adjustment that will enable them to be used even down to 20 meters with a tuner.

It helps in transportation and makes tuning the antenna a snap. Web10-Meter MoxBeam, KG4JJH 3 of 12 tension on the wire and tape, measure out 1 ft-103/ 16 inches (Figure 9, dimension B) and mark the wire. , . The antenna has been used several times mountain-topping and contesting. * A gamma match This allows connection of a coaxial cable to the driven element of a beam antenna. Approximate Free-Space Gain = 7.03 Approximate 2:1 VSWR Bandwidth = 8.77% of Design Frequency, 2.493 mhz Approximate >20 dB F-B Ratio Bandwidth =1.782 % of Design Frequency, 0.506 mhz Resistance is constant, impedance changes with frequency, So, keep your power low when testing a loop antenna for transmitting and you should be fine, unless the specs state receiving antenna. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This Blog is mainly dedicated to Amateur Radio (Ham radio) and contains external articles and personal esperiences. This is how the material was cut up. This article has been viewed 411,524 times. 21K views 2 years ago. _Hasync.push(['Histats.track_hits', '']); Continue measuring to 7 ft-105/ 16 inches (Figure 9, dimension W1A) and mark the wire, recheck the measurement and cut. Drilling the two holes in the angles smaller dimensionthe part that attaches them to the boomisnt critical as long as you drill the holes on the boom the same distance apart. WebHow to Build a 10 and 11 meter 1/4 wave Ground plane that almost no one can see. I drilled a hole at the center of the driven element and installed a bolt to attach the shield of the coax. Approximate Free-Space Gain = 7.03 Approximate 2:1 VSWR Bandwidth = 8.77% of Design Frequency, 2.493 mhz Approximate >20 dB F-B Ratio Bandwidth =1.782 % of Design Frequency, 0.506 mhz I used flat plastic stock and flat aluminum stock (1 inch by 1/16 inch cut to 3 inches worked fine) held in place by copper clamps (designed to hold copper pipes to a wall). Mechanically, everything looked good! What is Amateur Radio ? And the magic words are gamma match. Theyre lightweight, strong and readily available at most Radio Shack and home stores. Harvest Out 250B (3.5-57 MHZ) HF/6M Base Station Radio Antenna 3.8 (24) $22900 $18.50 delivery Mon, Mar 27 I used black when marking the driven element and red on the reflector. To create this article, 17 people, some anonymous, worked to edit and improve it over time. You wont believe how big a 10-meter beam seems when its inside a garage! Place a ring connector with a 5mm hole on each side of the cut wire. I know Hams who have used an AA magnet mount antenna on a refrigerator top and even cookie sheets in the house in order to use the local wide-area repeater that operates at just below 147 Mhz. WebOne commercially made antenna mfg that can be easily tuned to 10 meters is the Solarcon Antron 99 series and the Solarcon Imax 2000 verticals with great success. Use it to try out great new products and services nationwide without paying full pricewine, food delivery, clothing and more. Consult any ham radio operator about H.F. antenna construction. Mostly HF beams, including the trapped Hygain TH6DXX. To create this article, 17 people, some anonymous, worked to edit and improve it over time. var hs = document.createElement('script'); hs.type = 'text/javascript'; hs.async = true; . The locations of the straps arent critical at this point. I find that its best to keep a written record when tuning an antenna (even if its only a dipole) so that I know where I am and which way Im going. Say no to HOA Antenna restrictions! , WebThe design is broadbanded enough that you could still go up to 10 meters and talk with around a 2.0 SWR. ** The ARRL Antenna Book, 1974, pg. Approximate Resonant Feedpoint Impedance = 135.777 Ohms before added matching section. This will also have an effect. When building a loop antenna, I keep wondering if this just for RX, because it seems to me that connecting the center load at one end and the shield at the other will blow my transmitter, so I'm afraid. All three wires should be soldered, and attached carefully.

They couldn't make the connection with the antenna mounted on their 5 watt handheld but could with the more efficient mag-mount mobile antenna. In the old days we used tuning capacitors from discarded AM radios. breakerbroke23.

Sliding the plastic tubing onto the 1/2-inch rod until their ends were flush, I now slid this assembly into the 5 5/16-inch tube until 1/2-inch of the plastic tube was left exposed (see Figures 4 and 5). HF Portable-Choosing the right antenna; How to build an inverted L for low bands. As I've stated before, experimentation is what it's all about. If you are suggesting using a metal structure as the radials (aka the ground plane), then give it a try. Make A 10 Or 20 Metre Yagi Beam Antenna In Your Attic Radio And How To S Portable 10 Meter 28mhz 2 Element Beam Using Cb Whips By Kl7jr A Small 10 Meter Very Wide Band Yagi A Short Boom Wideband Three Element Yagi For 10 Meters How To Build A Limited E 10 And 20 Meter Band Square Halo Dx Antenna Pa9x 10 Meter Use wire of similar nature. WebHere's a cheap, easy-to-assemble, two-element Yagi you can build for 10, 12, or 15 meters. . 9-7. This site use cookies to ensure you the best experience in navigation. It helps in transportation and makes tuning the antenna a snap. It helps in transportation and makes tuning the antenna a snap. 3PL . If you cant achieve a match, slide the entire matching section toward or away from the center of the driven element. Tuning caps are as scarce as hens teeth nowadays, so I decided to try a technique Id come across in the 1974 ARRL Antenna Book** incorporating the capacitor into the structure of the gamma match. Say no to HOA Antenna restrictions! How a gamma match works is beyond the scope of this article. breakerbroke23. The inner conductor, carrying the RF current, is tapped out on the element matching point.

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I disassembled the monster in the garage and reassembled it on the lawn by myself to test my simplicity theory. This is fine for permanent installations, but not something to he bothered with while operating portable. Required fields are marked *. (SECOM) 3. There are actually several ways to feed a plumbers delight antenna, but the gamma match is probably the simplest. To top it off, the whole mess is fed with unbalanced coax. It was well worth the effort. I needed 35 feet of tubing (plus some to fit inside each telescoping joint for support). I drew a ring around both 1-inch tubes with permanent markers to show the exact center for easy assembly. So I make do with a long, thin random wire that works nicely as long as the New England wind, snow and ice dont conspire to give my hamming a holiday (which happens more often than Id like). One answer is to operate mobile. WebBuild a Portable 10 Meter Yagi Antenna Dave Tadlock 26.9K subscribers Subscribe 34K views 8 years ago A simple 2 element 10 meter yagi antenna ready in time for Field Day

Box or rectangle loop, or a triangle, spacing them out as much as possible. How to build an Hexagonal antenna in 3 hours (by EI7BA) Reflected W Beam Hexagonal Wire Beams for 40-10m from DL7IO, different mono/multiband designs with building descriptions and model files for EZNEC (by DL7IO) I then slid the un-slotted ends of the four 7/8-inch tubes into the ends of the 1-inch tubes, holding them in place with hose clamps. The holes in the larger dimensions should be tailored to allow the mounting of the 1 1/4-inch U-bolts for the elements and the 1 3/4-inch U-bolts for the mast. Box or rectangle loop, or a triangle, spacing them out as much as possible. WebHow to Build a 10 and 11 meter 1/4 wave Ground plane that almost no one can see. WebA Simple 2 Element Quad Antenna for 10 meters - Quads beams consist of 2 1 wavelength (approximately) loops, ordinarily arranged so that one is the driven element and the other is the reflector. Newington, CT, 06111-1400 USA Avoid using wires that corrode easily, or may break and lose conductivity. The Electrical and mechanical design process for two Log Periodics that cover the HF bands from 10-30 MHz. These particular verticals come with a tuning adjustment that will enable them to be used even down to 20 meters with a tuner. Place a ring connector with a 5mm hole on each side of the cut wire. var _Hasync= _Hasync|| []; A fantastic, and fascinating way of communication, and yet, it was primitive enough to look back on from this date, and say that was one fantastic communications tool. I mounted the boom on the mast with U-bolts and clamps and attached the two 1-inch tube sections to each end of the boom with U-bolts and centered them for balance. This article has been viewed 411,524 times.

WebOne commercially made antenna mfg that can be easily tuned to 10 meters is the Solarcon Antron 99 series and the Solarcon Imax 2000 verticals with great success. Web81K views 8 years ago Building the ultimate 2 meter ham radio beam antenna with local parts. _Hasync.push(['Histats.start', '1,4346535,4,0,0,0,00010000']); Materials: Except the aluminum tubes and rod, you need three aluminum plates 15X15cm to support the elements up on the boom and one more plate 20X20 to support the boom to mast. Its not terribly strong, but it is lightweight. I did the same at one end of each 7/8-inch tube. WebHere's a cheap, easy-to-assemble, two-element Yagi you can build for 10, 12, or 15 meters. System , , . Slip on a corner clamp and then a 2 Making open wire feed line; 2 element beam for 20 meters from gw0jxm; DIY Portable Discone Antenna; 49:1 End Fed Half Wave Multi-Band Antenna; New 160 Meter Antenna; 2m/70cm Ground Plane Antenna; The NE0U 160m EZ-L Antenna at WX0V; Tri A two element 10-Meter beam designed for portable or permanent installation. Web81K views 8 years ago Building the ultimate 2 meter ham radio beam antenna with local parts. The name of the game with Ham Radio is have fun and experiment to see what works, so why not try it with the others if they are built with removable antennas? More information on gamma matches is available in the current edition of theARRL Antenna Book. The two 7/8-inch tubes were cut in half to yield four four-foot lengths. 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. Materials: Except the aluminum tubes and rod, you need three aluminum plates 15X15cm to support the elements up on the boom and one more plate 20X20 to support the boom to mast.

Living in a condo has many advantages, none of which is being able to mount a tribander on a 60-foot tower. I havent experimented with the reflector length yet to see the effect on the gain and the front-to-back ratio. This is a wise question! Pull up your antenna into the trees or your tower very carefully, making sure that it is as close as possible to the design you chose to make the antenna. I would be building a two-element beam. Some well-designed and easy-to-build antennas for the 12- and 17-meter bands, A portable easy to build light weight antenna. As a small thank you, wed like to offer you a $30 gift card (valid at GoNift.com). Webohms coaxial cable with antenna's low impedance. In this case, the driven element is one piece, and everything is shorted to the boom, to the mast and to ground. Because the RF voltage at the center of a ? When the elements are assembled, hose clamps will pinch the slots closed and keep the element sections in place (see Figure 3).

I set it to 28.4. Sound Card Interfacing for RTTY, PSK31, and SSTV, A low cost 600 watt ultra-linear amplifier, VE7AVV YAESU FL-2100Z Amplifier Repairs. As the DX faded I got a chance to test out the gain of the antenna versus my vertical antenna. Approximate Resonant Feedpoint Impedance = 135.777 Ohms before added matching section. At 28.4 MHz, for an antenna made of tubing and not supported at the ends, a half wavelength is 491.8 divided by 28.4 MHz, or 17.3 feet. . There was nothing left to do but try it out on Beseck Mountain.

Making open wire feed line; 2 element beam for 20 meters from gw0jxm; DIY Portable Discone Antenna; 49:1 End Fed Half Wave Multi-Band Antenna; New 160 Meter Antenna; 2m/70cm Ground Plane Antenna; The NE0U 160m EZ-L Antenna at WX0V; Tri The three telescoping sizes available at my local hardware store were 1 inch, 7/8 inch and 3 /4 inchperfect! WebMost beam antennas are made with aluminum tubing because its strong, lightweight and available in sizes that telescope into each other. I then took the 1-inch tube and cut a slot in each end to a length of about 1 1/2 inches. Dimensions: Formulas: Reflector Loop Length (4 X L1 side) = 36 0 Driven Loop Length (4 X L2 side) = 35 1 Director Loop Length (4 X L3 side) = 34 0 (2 each) Reflector: 4 X L1 = 1030 / F (MHz) Driven Element: 4 X L2 = 1005 / F (MHz) Directors: 4 X L3 = 975 / F (MHz) I now had a capacitor!

I then cut a small piece off the un-swaged end of the second five-foot TV mast (so it would fit in the trunk) and installed it into the tripod.

Youll also need eight hose clamps sized to fit your tubing.

WebBuild a Portable 10 Meter Yagi Antenna Dave Tadlock 26.9K subscribers Subscribe 34K views 8 years ago A simple 2 element 10 meter yagi antenna ready in time for Field Day Keep up with the latest tech with wikiHow's free Tech Help Newsletter. Thanks to all authors for creating a page that has been read 411,524 times. Because the tubing comes in 8-foot lengths, this worked out to five lengths of assorted sizes. Pushing the tube endwise into a band saw makes a really nice double-slot arrangement. Not perfectly ideal but acceptable enough if you wanted to run both bands with one antenna. The telescoping feature is important. Include your email address to get a message when this question is answered. I then enter the lowest SWR point (resonance) at the appropriate X-Y position. Also you need: U bolts, screw, nuts, time and courage! How to Build Several Easy Antennas for Amateur Radio, construir varias antenas fciles para radioaficin, Costruire delle Semplici Antenne per una Radio Amatoriale, , Construir Vrias Antenas Simples para Radioamador, fabriquer facilement des antennes pour un poste de radioamateur, Baue verschiedene einfache Amateurfunk Antennen. In the past I had used a U-bolt and clamp arrangement, but this technique requires care in keeping the elements parallel to each other and to the ground. Webohms coaxial cable with antenna's low impedance. Using the very unscientific method of comparing S-meter readings, the beam showed very good side rejection and a respectable front-to-back ratio. Also see ARRL/TIS page onGamma match(FREEAdobes Acrobat Readerrequired). I drilled a hole near the end of the 5 5/16-inch tube and installed a small bolt for the center conductor of the coax. In this project author explains how to You need a length of 5.3m and 10.6m of cable respectively for the 10 and 20 meter band. Web1-16 of 72 results for "10 meter beam antenna" RESULTS Solarcon - IMAX-2000 CB/Ham Radio Base Station Vertical Antenna, 24-Feet 4.5 (390) $30900 FREE delivery Mar 27 - 31 Or fastest delivery Sat, Mar 25 Only 9 left in stock - order soon. The telescoping feature is important. Were committed to providing the world with free how-to resources, and even $1 helps us in our mission. WebThe design is broadbanded enough that you could still go up to 10 meters and talk with around a 2.0 SWR. These particular verticals come with a tuning adjustment that will enable them to be used even down to 20 meters with a tuner. One 3/4-inch tube was cut in half to yield two four-foot lengths. That was my starting point.

28.7K subscribers. System Dimensions: Formulas: Reflector Loop Length (4 X L1 side) = 36 0 Driven Loop Length (4 X L2 side) = 35 1 Director Loop Length (4 X L3 side) = 34 0 (2 each) Reflector: 4 X L1 = 1030 / F (MHz) Driven Element: 4 X L2 = 1005 / F (MHz) Directors: 4 X L3 = 975 / F (MHz) After only a few adjustments I could obtained a 1:1 match at any chosen frequency (28.0 to 28.5 MHz). I was fortunate that it was a beautiful summer day and that I had my wife, Donna, AA1DQ, to help me. Box or rectangle loop, or a triangle, spacing them out as much as possible. Materials: Except the aluminum tubes and rod, you need three aluminum plates 15X15cm to support the elements up on the boom and one more plate 20X20 to support the boom to mast. The beam had to fit in the trunk of my Subaru (limiting the largest component to about four feet in length) and had to be easy to assemble and erect on site by one person. Consult any ARRL handbook for FAQs about antennas. You need a length of 5.3m and 10.6m of cable respectively for the 10 and 20 meter band. Because the 1-inch section was going to be the center part of the two elements, I picked up U-bolts and nuts while I was there.

Pull up your antenna into the trees or your tower very carefully, making sure that it is as close as possible to the design you chose to make the antenna. Make A 10 Or 20 Metre Yagi Beam Antenna In Your Attic Radio And How To S Portable 10 Meter 28mhz 2 Element Beam Using Cb Whips By Kl7jr A Small 10 Meter Very Wide Band Yagi A Short Boom Wideband Three Element Yagi For 10 Meters How To Build A Limited E 10 And 20 Meter Band Square Halo Dx Antenna Pa9x 10 Meter Web81K views 8 years ago Building the ultimate 2 meter ham radio beam antenna with local parts. How to Create an Internet Radio Station: Step-by-Step Guide.

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