[ARC5] Running the receiver rack with the sidetone/voice function

[David Stinson]

----- Original Message ----- 
From: "J Mcvey via ARC5" <arc5 at mailman.qth.net>
I guess they never had to deal with this on the planes because 
the transmitters were "set and forget", not able to be tuned 
during flight?
----------------------------

You check the calibration of  your BC-221 against the
"standard" in the Radio Shop, then lug it out to
the flight line with a list of the assigned freqs for
the mission.
You set the 221 and zero-beat the receiver.
Without moving the 221's dial, you plug-in the
221's headphones, key the transmitter, listen
for the heterodyne between the 221 and the
transmitter and zero-beat.  Then  you know your
receiver and transmitter are "netted."  Only mess
with it in flight if you have some reason to believe
one of them has wandered or on the rare occasion
one might have to land at an alternate airfield tower
with a different "guard" frequency.

73 Dave S.