[ARC5] Command Set Receiver/Transmitter Frequency Spotting

[Mike Morrow]

>Ummm ... lest we forget, both the BC-221 and the LM are pretty decent
>signal generators as well - one of the cool parts of heterodyne
>frequency meters.  To me, that would make spotting a pretty easy
>trick.  But that's just me.

The command sets were operated by the pilot/co-pilot.  It is not likely that a BC-221 or LM would be used in the cockpit to ensure that the receivers were set appropriately.  I would be willing to bet that never happened even once.

In any event, that would certainly be much much more difficult than using a MONITOR-NORMAL switch like the liaison sets used in USAAF aircraft.

Now as far as the equipment that a radio tech might use to align the receivers pre-flight, I did list three useful external signal sources:  The LM, the BC-221, and the rarely encountered O-4/ARC-5.

Mike / KK5F