Donaufunk Wien (OED2) :
listen here to the traffic of the Danube River Shipping Company's stations (rb, 1987)
a very friendly letter from 1987, with an invitation to visit the station (rb)
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Callsigns:
OED2
Frequencies Voice:
4000
4066.1
4068
4072.3
4074
6206
6206.3
6230
8204.3
8297