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. Not perfectly ideal but acceptable enough if you wanted to run both bands with one antenna. IU New Ham Radio Callsign Prefix in Italy, Licensed Amateur Radio operator in 1996 as IW5EDI, active member of, Class 1970, married with two childrens, love experimenting and antenna home-brewing. 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 took the 8-inch piece of 3/4-inch tubing that I had set aside before and cut it to 5 1/16 inches. 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. WebThe design is broadbanded enough that you could still go up to 10 meters and talk with around a 2.0 SWR. N5ESEs 87 ft Inverted L Portable Antenna? This is fine for permanent installations, but not something to he bothered with while operating portable. ERP Keep notes on what you do so you can repeat it, explain it to others and even build upon it! It performs well and can be erected by one person in about 15 minutes. When the elements are assembled, hose clamps will pinch the slots closed and keep the element sections in place (see Figure 3). 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 * In short, the braid of the coax is connected to the center of the driven element (since this is where the voltage null occurs in a half-wave conductor). 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 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. It may be reproduced in its entirety as long as you make no profit and credit is given to QST, Your email address will not be published. Thanks to all authors for creating a page that has been read 411,524 times. Amateur Radio has been a supreme way of communications for many ways of getting messages from one place to another for decades! I was overjoyed. Continue measuring to 7 ft-105/ 16 inches (Figure 9, dimension W1A) and mark the wire, recheck the measurement and cut. 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 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 IT System Engineer, recently started having fun with morse code and Raspberry Pi. This novel wire antenna is great for permanent or portable, QRO or QRP, and old-timer or beginner operation. Web81K views 8 years ago Building the ultimate 2 meter ham radio beam antenna with local parts. A two element 10-Meter beam designed for portable or permanent installation. This will also have an effect. There are actually several ways to feed a plumbers delight antenna, but the gamma match is probably the simplest. 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 It helps in transportation and makes tuning the antenna a snap. To create this article, 17 people, some anonymous, worked to edit and improve it over time. 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) 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 light-duty stuff is plenty strong and comes in five-foot lengths. High voltage coils were used for their power, and it systematically sent out the familiar "dits" and "dahs" of Morse Code, and the party or parties, at the other end who could read Morse Code wrote the symbols down, and they made words. Explore the 12- and 17-meter bands with this small, lightweight Yagi. As you may have noticed, this antenna uses plumbers delight construction. A two element 10-Meter beam designed for portable or permanent installation. 28.7K subscribers. 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. 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. Use wire of similar nature. WebThis antenna is being built for 10 meters centered at 28.400 Mhz. 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 225 Main Street , 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. 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 As I've stated before, experimentation is what it's all about. 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. The National Association for Amateur Radio Right in the middle, cut one of the two wires and cut back about 2cm from each strand. What is Amateur Radio ? I disassembled the monster in the garage and reassembled it on the lawn by myself to test my simplicity theory. _Hasync.push(['Histats.track_hits', '']); 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 Continue measuring to 7 ft-105/ 16 inches (Figure 9, dimension W1A) and mark the wire, recheck the measurement and cut. var hs = document.createElement('script'); hs.type = 'text/javascript'; hs.async = true; My manuscript had a different sequence, but I was persuaded by the editor to change it. You wont believe how big a 10-meter beam seems when its inside a garage! All tip submissions are carefully reviewed before being published. Leaving the hose clamps over the element slots loose, I adjusted the driven element length to about 17 feet and the reflector to about 18 feet 1/2 inch. Say no to HOA Antenna restrictions! 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) In the garage I erected a 3-foot tripod. Place a ring connector with a 5mm hole on each side of the cut wire. Right in the middle, cut one of the two wires and cut back about 2cm from each strand. . In this project author explains how to 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. I havent experimented with the reflector length yet to see the effect on the gain and the front-to-back ratio. I set it to 28.4. As I change the length I can easily see whats happening. This approach to matching a feed line to an antenna uses the antenna itself as an impedance transformer. WebMost beam antennas are made with aluminum tubing because its strong, lightweight and available in sizes that telescope into each other. 20 I was fortunate that it was a beautiful summer day and that I had my wife, Donna, AA1DQ, to help me. _Hasync.push(['Histats.start', '1,4346535,4,0,0,0,00010000']); Harvest Out 250B (3.5-57 MHZ) HF/6M Base Station Radio Antenna 3.8 (24) $22900 $18.50 delivery Mon, Mar 27 A bumper-mounted vertical is fine for casual operation, but it leaves a lot to be desired when mountain-topping for rare DX. Slip on a corner clamp and then a 2 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). This article has been viewed 411,524 times. _Hasync.push(['Histats.fasi', '1']); Also you need: U bolts, screw, nuts, time and courage! Webohms coaxial cable with antenna's low impedance. After only a few adjustments I could obtained a 1:1 match at any chosen frequency (28.0 to 28.5 MHz). Harvest Out 250B (3.5-57 MHZ) HF/6M Base Station Radio Antenna 3.8 (24) $22900 $18.50 delivery Mon, Mar 27 Simple Gain Antenna for the Beginner, A Three Element Lightweight Monobander for 14 MHz, Practical High Performance HF Log Periodic Antennas, Simple Offset Feeding of Wire-Element Beams, A Light and Sturdy Quad for 10 and 15 Meters, A Five-Band, Two-Element Quad for 20 through 10 Meters, How to repair a CDE, Hygain, or MFJ Rotator by Jim Pickett, K5LAD, Hiram Percy Maxim 150th Birthday Celebration, Volunteer Form for Deployment Consideration, Advertising and Other Business Opportunities. ** The ARRL Antenna Book, 1974, pg. 21K views 2 years ago. Place a ring connector with a 5mm hole on each side of the cut wire. The two 7/8-inch tubes were cut in half to yield four four-foot lengths. 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