16 turn helix antenna for 70cm band
- a helix antenna simplest antenna for the band 70 cm
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post 30 Oct 2026
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Quadrifilar helix antenna for 137 Mhz

Quadrifilar Helix Antennas QHA

Quadrafilar Helix antenna for 436 Mhz
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Quadrifilar helix antenna for 137 Mhz
- I had always wanted to try and receive a signal from a satellite using my scanner

Quadrifilar Helix Antennas QHA
- The Quadrifilar Helical Antenna, it ideal for a number of uses. Satellite reception and transmission may be number one among them

Quadrafilar Helix antenna for 436 Mhz
- This is an antenna that I just built. I intend on using for receiving the AO-27 downlink at 436.800 +/- doppler. It is built with right hand circular polarization, and the gain is supposed to be in the neighborhood of 3 DB


