PTT Karachi :

 

a recording of the voice mirror from 1972 (rb)
here a teletype transmission to Rangoon (50 Baud) (rb, 1984) just in case you have no decoder at hand ;-)
this is a recording from the files of Willi Passmann

 

from the collection of Hans Friedrich Dumrese (1972)

 

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Callsigns:
AQI **
ARL **
ASA *
ASB **
ASE **
ASF **
ASK *
ASN **
ASS **

 

Frequencies Voice:
10256
10470
10565
13858
17380
18060
18250
18470
18803
18990
19650
19670
19680
19748
20050
20845
20935

 

Frequencies Radioteletype:
8005
8135
10700
13412
13413
13420
14425
14850
16031
16086.4
16310
17382
17422
17440
17441
17442
18890
20050
20119
20120
20190
23160

 

Systems used:
50 Bd
ARQ-M2-192
ARQ-M2-96
ARQ-M4-192
FEC-A-192
?-196 Bd