here the signal received
daytime on the german baltic coast (rb, 2016)
from the files of Rudy van Dalen, see this letter from Kristiansand
Kjevik airport (1984)
a PPC from the collection of Patrick Robic (1999)
another multi-QSL from the
collection of Rudi Renkwitz (2006), confirming NTD-400,
ODR-372, OPA-334,
RBU-352, REK-379,
and RG-381
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Callsigns:
ODR
Frequencies Morse Telegraphy:
372
381
.