[Milsurplus] scr-183

[David Stinson]

The Radio Mechanic set both the receiver and transmitter
before the flight using a freq meter.  However, the pilot
could tune.  He had a frequency read-out (either direct or chart)
and had some training in radio use.  However, the receivers were
intentionally designed to be broad-tuning to make-up for tuning
errors in what was intended to be a close-range set.
A little regeneration between the second and third RF stages
will vastly improve both sensitivity and selectivity,
but it's a very toucy tune.
Off to church.

73 Dave S.

----- Original Message ----- 
From: "Phil" <dgnova at verizon.net>
To: <Milsurplus at mailman.qth.net>
Sent: Sunday, June 03, 2012 11:10 AM
Subject: [Milsurplus] scr-183


>I have a question about netting the SCR-183 receiver. The transmitter 
>was
> tuned up on the
> ground by radio machanics, so that it was fixed tuned as far as the 
> pilot
> was concerned. But
> how about the receiver. How could the pilot get the receiver tuned 
> to the
> frequency of the
> flight leader ? Since dual range coils were normally used, if the 
> pilot
> switched to the 200kc
> to 400kc band, then  switched back to the short wave band, he would 
> have to
> return his
> receiver. Again how would he get the receiver netted ?
> Phil