EA4EOZ:
Besides the geostationary, you do have polar satellites transmitting on 1,7GHz (the same NOAA`s as on 137MHz, also don’t forget the Chinese birds.
As far as I know, and speaking for this side of the world, Meteosat broadcast, apt, have stopt transmissions some years ago. However Meteosat still transmitting (retransmit) like PDUS but this is decoded.
Simon:
Concerning the Doppler, this is a subject to take in consideration, when design/building a receiver for reception of signals from moving objects. If you are interested I can send you a link or document about this subject.
pb0aog
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