S Emb Tehran :
in 1986, they still used 'normal' 75 baud RTTY (rb, 1986)just in case, you have no decoder at hand ;-)
verification by PPC (rb, 1985)
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Callsigns:
SAM51
Frequencies Voice:
14517
14522
14965
18945
23529
Frequencies Radioteletype:
14517
14522
14965
14970.4
15821.9
15861.9
18945
19218
20606.9
20960
23586
Systems used:
75 Bd
SWED-ARQ