no recordings available
here the czechoslovak PTT confirms
a report of Joop Balneger about the news agency (1980)
Rudy van Dalen obviously received 2 different letters written
the same day - confirming directly (1987)
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Callsigns:
OLA **
OLC *
OLD *
OLH *
OLI *
OLL *
OLM *
OLO *
OLS *
OLU *
OLV *
OLW *
OLX *
OLZ **
Frequencies Radioteletype:
4105
4602
5028
5603
5917
6768
7328
7577
7578
7845
8142
9353
11002
11117.5
12312
13597
13648
14584
15505
15898
17525
18985
19525
21000
21780
23375
Systems used:
50 Bd