It was not easy to identify who was the United Statest Naval
Communications Station Harold E Holt ... (1971)
friendly verification form letter from 1970 (rb)
TX-Site Exmouth, "Crop
Pentagon"
------------------------------------------------------------
Callsigns:
NWC
Harold E Holt
Frequencies Voice:
7453
9805
10580
10650
10850
13540
14601
14655
16011
16093
18009
18372
22430
22910
23030
23290
23351.5
23870
24430
Frequencies Morse Telegraphy:
19,8
12867
Frequencies FAX Picture Transmissions:
8614
9498.5
12674
12727.5
16914.5
17060
Frequencies Radioteletype:
19,8
20,9
11080
14601
14643
14655
18372
22910
23290
23351.5
23870
Systems used:
120 rpm
50 Bd VFT
VFT