from the collection of Andy Stumpf: a CQ call from 1987
this duly stamped PPC dates from 1988 (rb)
different version of a PPC (Frank Schüttig, 1994)
a form letter for verification, received by Vladimir Rozhkov
(1999)
------------------------------------------------------------
Callsigns:
7TF **
7TK**
Frequencies Voice:
4384
4393
4417
4426
4432
6501
6507
6513
6516
8722
8743
8755
8779
8791
13095
13119
13125
13137
13170
17302
17326
17332
17347
17362
22708
22756
22768
22774
22807
Frequencies Morse Telegraphy:
4252
4282.3
4288
4309
4341.6
6387.4
6415
6425
6443.5
8437
8648.5
8651.5
8698
8705.4
12615
12658
12662
12695.5
12771
13008.8
13071.3
16932
17106.3
17139.5
17148.5
17217.4
17217.5
22488.5
22498.5
22543
22680
Frequencies Radioteletype:
4211
4215
6316.5
6322
6325.5
8421.5
8423.5
12582
12600
16825.5
16835.5
16836.5
16932
22395.5
22397.5
22408.5
Systems used:
SITOR