this voice mirror was used in the 1960's (Hajo Russow)
...and this one in the early 1970's (rb)
another one, from the late 1970's (Willi Passmann)
an interesting letter from 1963 confirms the reception of Maarten
van Delft
1972: a very nice and detailed
card for the radiotelephone service (rb)
------------------------------------------------------------
Callsigns:
SXN8
SYA4
SYC
SYI
SYU
SZF **
SZI45
SZJ
SZK26
SZU **
SZV **
SZW3
Frequencies Voice:
5115
5180
5305
7355
7969
9206
9228
9290
9321
9459
9962
10282
11425
11485
11562
12100
14465
15045
15625
17363
18070
18170
18270
18470
18672
18760
19130
19230
19508
19562
19885
20265
20430
20805
21784
23657
Frequencies Morse Telegraphy:
4945
Frequencies Radioteletype:
9327
Systems used:
50 Bd