I HAVE FOUND that *RHCP <=> LHCP switching* is not worth the added complexity, RF losses, cost, and lack of reliability for most Amateur Radio applications. Exception: If you are running an official ARISS Telebridge ground station, an AMSAT OSCAR command station or perhaps a Primary SatNOGS ground station. My 2 USD cents. Just sayin'! DE Pat N8PK-FM19

On Sun, Dec 24, 2023 at 2:20 PM Eduardo PY2RN via AMSAT-BB < amsat-bb@amsat.org> wrote:

Just make it polarization switchable: vertical / horizontal, simpler and almost same result.

73

Merry Christmas to all.

Ed PY2RN

On Sunday, December 24, 2023 at 02:08:32 PM GMT-3, Joseph Amato via AMSAT-BB amsat-bb@amsat.org wrote:

I’m looking for some advice on antennas for 2 m/70 cm satellite operation. Presently, I have home-brew yagis for each band, horizontally polarized. To eliminate fading due to satellite rotation, I want to replace these antennas with circularly polarized ones. But the new antennas need to be relatively lightweight, because I have to lug them up on a ladder to mount them, and, well, I’m not as young as I used to be. I have been considering the WiMo circular polarized antennas (#18010 and 18011), but would first like to hear from people who have experience with them. I like to build things myself, but the WiMo design looks cleverer than anything I’ve been able to come up with so far. Any advice? Thanks!

Joe K1MNY

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