DESIGNDATA FOR YOUR YAGI. Note : It is quite possible, that other calculators deliver slightly different results. Some are based on look-up tables, some completely hide their algorithms. We use an interpolation approach. Our results are optimised for gain, but others may be optimised for bandwidth. However, if the parasitics differ much from 0
Theattached instruction sheet is courtesy of WA5VJB who designed these antennas. It outlines how to build yagis for 144Mhz, 220Mhz, several different 440 band frequencies, 900 Mhz, and 1.2 Ghz. For some of the broader bands (like 2m & 440) you may need to tweak the elemnt lengths slightly, but if you follow the dimensions you'll have very good
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MakingThe Gamma Match. Remove the outer insulation and braid from an 11-inch piece of RG-8 coax, leaving the center conductor and its insulation. Strip off one-half inch of the insulation and solder the center conductor to the SO-239 pin. At the pin, bend the wire at a right angle so that the wire is parallel to and about 2 and three
Circularpolarization on 2 meters: A 2-meter "Ring-Stub" style antenna. This design has been used by FM broadcasters for over 40 years. There are a number of reasons why amateurs might want to experiment with c-pol transmissions on 2-meters. Satellite communications typically involve a VHF uplink in the 2 meter band, and the azimuth
Prepareand install all elements except the driver. Before you cut the driver element, add a couple 3" to the overall length of the element. Now find, mark and cut the element in half. I then flattened about an inch of the element, and drilled a hole to accept the lugs of the coax.
Performanceis what counts! After you build one (try building a small one for 6 or 2 meters) and you'll agree that based on gain and F:B, the Moxon Rectangle is a superb antenna that is fun to build, works like a champ and is virtually indestructible. And they're great for portable field operating as well.
AntennasVHF-UHF. I've added yet another antenna to my aluminum collection. This time it's a 3-element six meter yagi, the M2 6M-3SS. I had been reviewing the options for a portable antenna. My planned operation will always be from a push-up mast either in my backyard for the summer Es season or from some relatively rare grid from my SUV.
Hamradio antennas, home made ham radio antenna projects kits and drawings category is a curation of 5295 web resources on . Resources listed under Amateur Radio Antenna Projects category belongs to main collection, and get reviewed and rated by amateur radio operators. Yagi (111) new; ZS6BKW (22) new:
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how to build a 2 meter yagi antenna
