I have for some time wondered what was causing a considerable amount or QRM
(S9+60dB) to the ISS downlink on 145.800. It took a while to identify as there
is no CW ident etc. but I have now discovered this is a new D-Star repeater on
our repeater channel RV63 which is 145.7875 MHz, only a couple of kHz from ISS
and inside the doppler shift range. It seems very poor planning to place high
this powered high sited repeaters so near to the satellite allocation. Is this
becoming a common problem and are repeaters also causing any problems to
uplinks?
Dick G4BBH
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