Hey @alex245: Can you tell me something about your turnstile antenna? Is there a source for your build? I’m always looking for new ideas. And: What setup are you using at this antenna?
Thank you.
Hi,
sorry, the antenna is not homebuild, I’ve bought it from “Winkler Antennenbau”.
Kreuzdipol
I’ve opened it and it’s the typical turnstile-antenna like thise one:
https://hb9odi.com/2016/08/31/turnstile-antenne-fuer-137-mhz/turnstile-137-mhz/
My setup is:
antenna -> 20m Ultraflex 7 -> l/4 stub for filtering out FM-broadcast -> NooElec NESDR SMArt RTL-Stick -> Raspi
Could it be, that your antenna has the wrong polarization, left handed instead of right handed? This would explain the bad NOAA-reception and the good amateur satellites reception because, at least I think so, they are mostly linear polarized.
Alex
Thx fer nfo. I don’t hope that the cables are connected the wrong way since 2010 or so… lol But: I’ll check it soon…
EDIT: Thanx for the link. Hey. These antennas doesn’t seem to be too expensive.