[Milsurplus] re SCR-522 ( Milsurplus Digest, Vol 137, Issue 35 )

WA5CAB--- via Milsurplus milsurplus at mailman.qth.net
Wed Sep 23 01:43:46 EDT 2015


Probably tuning (xmtr power out and rcvr sensitivity) drift rather than 
frequency drift.  Although the typical 60 to 140 F temperature variation would 
shift the crystals slightly, too.  No ovens in the SCR-522 or 542.

In a message dated 09/22/2015 23:16:50 PM Central Daylight Time, 
kargo_cult at msn.com writes: 
> >Bruce Vaughn/NR5Q (SK) was a USAAF radio tech in the ETO.  He told me 
> that 
> >the SCR-522-A was easily the most important and most used USAAF radio set 
> 
> >in the ETO.  But Bruce complained of its drift with temperature change...
> 
> Mike, how explain this? The set was quartz-controlled both r and t, and 
> the 
> IF surely wasn't that selective, right?
> -Hue 

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480


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