PTT Lusaka :

 

a recording of the voice mirror from 1971 (rb)
slightly different version (rb, 1974)

 

detailed letter for verification (Lars Lundström, 1965)
a nice QSL with (general) ham-card and PPC (rb, 1971)
a very detailed letter confirming interior point-to-point circuit (Peter Conway, 1972)
here the ham-card with much more details (Frank Schüttig, 1974)

 

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Callsigns:
9JA **

 

Frequencies Voice:
10107
10170
10280
13390
13570
13828
15760
19987
20120
20261
20410
25260

 

Frequencies Radioteletype:
19877
19984

 

Systems used:
50 Bd