A New Helix Antenna Design
- Gain 15.9 dbci approximately 1 to 1.5 db better than the standard helix antennas i have modeled, pattern: first side lobes at 36 degrees down 14 db average of all remaining sidelobes <25 db, bandwidth: <0.2 db variability from 432 to 438 mhz 50 ohm match at <1.2 vswr from 432 to 438 MHz
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post 15 Sep 2026
Antenna for UHF VHF Links →
A Portable Antenna for Mode B and J Satellites
A turnstile antenna for 2-meter ARDF
Antena Direcional para UHF - 430 - 450mhz
Antenna for 2m and 70cm
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A Portable Antenna for Mode B and J Satellites- A 4:1 balun, constructed out of a 1/2 wavelength of RG-58 coax is used to couple the T match to the 50 ohm feedline
A turnstile antenna for 2-meter ARDF- Designed by Jay Hennigan, WB6RDV, these are the same type of antennas I've been using for about seven years for both championship and practice ARDF These are horizontally polarized omindirectional antennas as specified in the IARU R1 ARDF rules
Antena Direcional para UHF - 430 - 450mhz- The boom should be aluminum and rectangular. The diameter used in the antenna tested for this project was 2x2 cm and the total length was 1.80 meters
Antenna for 2m and 70cm- Small antenna for 2m and 70cm, after using it you can roll-up the antenna, very nice on holidaysv
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