[ARC5] US Pushbutton VHF-AM Control Boxes - Insight Again

[Mike Morrow]

>> During formation training there were often more than four 4-plane
>> formations + instructor in the air at any one time, all on different
>> channels,

I asked:

> Still...how was such training conducted before command sets with a
> channel for each formation became available?

I see now that the answer is obvious:  Only ONE of the available
command set channels, regardless of the number available, needs
to be unique to a particular formation.

Thus, a two-channel MF/HF command set (ARA/ATA or AN/ARC-5), or a
four-channel VHF command set (AN/ARC-4 or -5 or SCR-522-A), or an
eight-channel VHF command set (AN/ARC-3), or a ten-channel VHF 
command set (AN/ARC-1), etc. etc. needs only ONE of the available
channels set to a frequency that is unique to a specific formation.
All of the remaining channels can be identical in every aircraft
and every formation in the sky, even were there 50 of them.

Mike / KK5F