Santiago Aero :

 

a recording from Tony Paredes: 'Santiago Oceanic' working with an austrian aircraft

 

see this QSL from Maarten van Delft's collection for a reception in 1967
here the QSL for an 'AFTN'-link (Lars Lundström, 1983)
PPC with much details (rb, 1986)

 

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Callsigns:
CAK

 

Frequencies Voice:
2854
2944
2956
2998
3446
3476
4651
4663
4669
4696
4745.5
5454
5481
5583
5710.5
6547
6553
6649
8831
8842
8858
10024
10081
11303
11321
11330
11360
13297
13300
17907
17967
18360

 

Frequencies Morse Telegraphy:
3485
3773
6746
7810
18001
18014

 

Frequencies Radioteletype:
5544
5745
8203
11100
11170
11200
11622
14559.7
14600
16427.7
18360
20381

 

Systems used:
50 Bd
SITOR