[Milsurplus] Old Military & Para-Military Radios, what freqs were yours on & who used them?

[Mike Morrow]

Spike wrote:

>I'm Tracing the use of 60mtrs & some of these old xtal control military
>& Para-Military radios. ... What's in you collection, what freqs were
>they originally on, & who was using them?

Probably older than you are seeking, but the USAAF's 1944-era AN/ARC-9
crystal-controlled HF transmitter-receiver was supplied with its ten
channels on the following frequencies:

CH.   KC
1    3105
2    4220
3    4495
4    4575
5    4465
6    5588
7    5662
8    6210
9    6440
10   6500

These frequencies are even specified in the AN/ARC-9 maintenance manual
(AN 08-30ARC9-3), so these are likely the USAAF's most commonly used
WWII-era HF aircraft frequencies.

The AN/ARC-9 is the military version of the commercial Bendix RTA-1B,
which was available as early as 1942.

Mike / KK5F