a recording of their telegraph marker (rb, 1974)
here a nice handmade QSL card, showing the Telecom Building in
Barranquilla (rb, 1974)
in 1982, Rudy van Dalen received this nice QSL via Bogota headquarters
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Callsigns:
HKB
Frequencies Voice:
2046
2053
4354
4372
4372.9
6519
8707
8794
8796.4
13083
13107
13173
13176
17276.3
17284
17365
17368
22816
22819
Frequencies Morse Telegraphy:
420
434
460
476
500
4277
6463.5
8701.4
12781
13087.5
17004