[AMRadio] OT. Retuning for Conelrad?

[B Farrell]

Nick,

I believe stations not assigned those frequencies for standard broadcast
transmissions had dedicated receivers in their control booths tuned to
those frequencies and relied on those 640/1240 stations. If I recall
correctly, if the system was activated the stations not on 640 or 1240
would retransmit the 640 and 1240 signals broadcasting civil defense
messages. Hopefully, someone with more knowledge will reply.

Brad K4RT

On Sat, May 11, 2024 at 9:07 PM Nick England <navy.radio at gmail.com> wrote:

> Did commercial AM stations switch crystals and retune transmitters for
> Conelrad at 640 or 1240kc or did the system depend on stations already
> operating on those frequencies? If stations retuned, did they also have to
> retune antennas?
>
> Nick England K4NYW
> www.navy-radio.com
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