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Dragan, 4O4A Profile picture
Dragan, 4O4A
@4o4a
🇲🇪 4O4A, 🇷🇸 YU4YY, retired Navy Comm officer, operations manager @4O3ASignature, SAT chaser. Waiting for Bouvetoya. Like a bridge over troubled water...
Jan 1, 2023 • 6 tweets • 2 min read
So, you have only one radio and restrain yourself from LEO sat operations because you don't know how to deal with Doppler?

Or you have two radios and would like to find clear frequency to call, or to find exact frequency where that rare station is listening?

#amsat #dxcc

1/6 You know math, right?

And you already have ISS Detector for Android, with those valuable information about passes, paths, Doppler shift for your location?

How to calculate on what frequency you have to call, to be heard exactly where you heard someone calling?

2/6