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2m-70cm quadrifilar helical antennas
- Build a pair of QHAs, one for 2 meter and one for 70 cm. A diplexer is of course needed to connect both to the single antenna connector of a dualband radio
post 29 May 2026
Helix Antennas Links →
Antenne helicoidale 2.4 GHz
2.4 GHz antenna design ideal for amateur satellite communications
Helix 2.425 GHz band
Broad bandwidth in the 2.425GHz band
circularly polarized antenna software
Software for calculator helix antenna
Detalles de diseo y construccion de una antena helicoidal
Here is a page with images of a 3-turn helicoid that was built for a reception system in the 1690 MHz band
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2.4 GHz antenna design ideal for amateur satellite communications
Broad bandwidth in the 2.425GHz band
Software for calculator helix antenna
Here is a page with images of a 3-turn helicoid that was built for a reception system in the 1690 MHz band
Microsat Ham radio shop for ulari project, aprs, aprs with radio, bluetooth, gps, gsm, ham radio interfaces, weather,accessories, cables to radio
Amateur radio kits by Kanga US
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