this is a rather complicated
puzzle: try to get 4XO out of the QRM
from 6YI and SXA (and more...) (rb,
1983)
this one is easier: listen
to the recording of the telegraph signal by Andy Stumpf (1987)
nice QSL letter from the collection of Udo Rostalski
this card looks rather simple - but it works! (Willi Passmann,
1984)
this QSL was printed on telex / telegramme paper (Ary Boender,
1990)
------------------------------------------------------------
Callsigns:
4XO
P
Frequencies Voice:
2182
2649
3656
4348
4366
4384
4408
4423
6507
6510
8719
8731
8752
8797
8800
13086
13095
13119
13144.2
13185
17266
17290
17323
17374
19776
22705
22714
22744
26157
Frequencies Morse Telegraphy:
484
4238
6430
6470.5
6471
8485
8694
12860
13051.5
13057.5
17060
17146.4
22491
Frequencies Radioteletype:
518
Systems used:
SITOR