Explore the 12- and 17-meter bands with this small, lightweight Yagi.

Most beam antennas are made with aluminum tubing because its strong, lightweight and available in sizes that telescope into each other. WebThis antenna is being built for 10 meters centered at 28.400 Mhz. So far so good. Were committed to providing the world with free how-to resources, and even $1 helps us in our mission. It helps in transportation and makes tuning the antenna a snap. 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. Otherwise you may get your adjustments all out of whack and wont know where you are. Webohms coaxial cable with antenna's low impedance.

I needed 35 feet of tubing (plus some to fit inside each telescoping joint for support). In this project author explains how to 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 I decided on right-angle pieces permanently mounted to the boom (see Figure 1).

, As they say, If it aint broke, dont fix it!. })(); 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 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 Technician Cl Dipole Build A For Meters, 10 Elements 50 Mhz World S Best Gain Yagi Antenna 6m10dx15, 10 6 Moxi 5 New For 2016 Meter Moxon Yagi Hybrid, Arrow Antenna 6m 6 Meter 4 Element Yagi Beam, Pg1n S Ham Radio Site Multiband Hf Beam Antennas, 2 Element Parasitic Yagis By Dk7zb 10 15 20 30 Meters, A 2 Element Direct Feed Yagi For Multiple Bands By Wb2vuo, Beam Over Doorway Crossword Clue 5 Letters, How Many Calories In A Jim Beam Black Can. 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) 20, , 40 , To top it off, the whole mess is fed with unbalanced coax. hq@arrl.org. WebMost beam antennas are made with aluminum tubing because its strong, lightweight and available in sizes that telescope into each other. A 2 element beam antenna for 10 meters band. , Because the tubing comes in 8-foot lengths, this worked out to five lengths of assorted sizes. 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) 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. _Hasync.push(['Histats.track_hits', '']); Include your email address to get a message when this question is answered. 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.

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I cut six, 3-inch pieces of angle to make the U-bolt mounting brackets two to hold each element and two to hold the mast. Webohms coaxial cable with antenna's low impedance. 2 Element Helical Yagi Beam for 40m A helically wound two element 40 meter yagi beam antenna from a 1974 WebThe design is broadbanded enough that you could still go up to 10 meters and talk with around a 2.0 SWR. 3PL . This is fine for permanent installations, but not something to he bothered with while operating portable. As the DX faded I got a chance to test out the gain of the antenna versus my vertical 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. This site use cookies to ensure you the best experience in navigation.

Using the very unscientific method of comparing S-meter readings, the beam showed very good side rejection and a respectable front-to-back ratio. More Ham Radio Links. Harvest Out 250B (3.5-57 MHZ) HF/6M Base Station Radio Antenna 3.8 (24) $22900 $18.50 delivery Mon, Mar 27 Wireless is what they called it back then, and still to this day, wire antennas are sending signals out on the airways. 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 Other pertinate information and articles from using diodes and resistors to control current, and useable information about antennas are listed there. 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. How to Create an Internet Radio Station: Step-by-Step Guide. Box or rectangle loop, or a triangle, spacing them out as much as possible.

I drew a ring around both 1-inch tubes with permanent markers to show the exact center for easy assembly.

Technically they represent the same thing with one big caveat. The name of the game with antennas is not resistance but impedance. Were going for portability here! 4. Amateur Radio has been a supreme way of communications for many ways of getting messages from one place to another for decades! WebN4TUX Boyds 10 Meter Quad Antenna. var _Hasync= _Hasync|| [];