here a recording, made by
Andy Stumpf in 1987
friendly verification letter from 1973 (rb)
surprising: a letter in german language (Willi Passmann, 1978)
a rather short letter from 1994 (Frank Schüttig)
------------------------------------------------------------
Callsigns:
WCC
Frequencies Morse Telegraphy:
436
500
2036
4238
4268
4331
6334
6337
6376
8586
8630
8642
12487
12624.5
12847
12925.5
12961.5
13033.5
13088
16904.8
16933.2
16972
22518
22521
22640
22658
Frequencies Radioteletype:
4216
4216.5
6320
6320.5
6324
8422.5
8423
8424
8426.5
12585.5
12586
12589.5
12598
12648
13081.5
16079
16813
16813.5
16817
16825
22382.5
22383
22386.5
22395
Systems used:
SITOR
SITOR,CLOVER