MARS Andrews AFB, MD :

 

no recordings available

 

a QSL from the 'Armed Forces Day' of 1967 ...
as well as from 1987 (both: Costas Krallis)

 

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Callsigns:
AIR

 

Frequencies Voice:
4593.5
4600
7457
7540
7680
11121
13825
13993
13994.5
13996
13997.5
14389
14390.5
14392
14407
14408
20188.5
20190
20195

 

Frequencies Morse Telegraphy:
4876.5
6995
13997.5
14528.5
14530.5
15526
15808
15808.5
20961.5

 

Frequencies Radioteletype:
7832.5
7915
14390
14392
14406
18156.6
20188.5
20190
20190.3

 

Systems used:
45 Bd
50 Bd
75 Bd