Colombo Radio :
a call from Colombo Radio in morse code (rb, 1986)...
...friendly answered by a verification letter and a PPC (rb, 1986)
------------------------------------------------------------
Callsigns:
4PB
Frequencies Voice:
4363
4363.6
4372
4384
4417
6501
6516
8722
8740
8779
13137
13146
17302
17359
22756
Frequencies Morse Telegraphy:
482
500
4247
6395
8473
12927.3
17045.6
Frequencies Radioteletype:
4218
4219
6329
8419.5
8431
8435
12586
12609
16844
16901
Systems used:
SITOR