I seem to remember that old AM BC radios had some sort of receiver built in to turn them off after a a Civil Defense transmission ended.I also seem to remember it was so the enemy would not be able to hone in on their signals.
i remember as a kid seeing the CD spots on the radio but never heard of a turn off circuit.
i has my hands in many a radio
if you mean to home in on the I.F. then they would be about 20-30 feet away and that would be way too close!
i remember as a kid seeing the CD spots on the radio but never heard of a turn off circuit.
i has my hands in many a radio
if you mean to home in on the I.F. then they would be about 20-30 feet away and that would be way too close!
i got ya the transmitter shut down
they played the shell game
if you tried to get a fix on the transmitter you could pinpoint where everything was (pre gps)
i think it would have been better to get everyone to stay on and on the same frequency (too late)