[Milsurplus] BC-348Q

[WA5CAB at cs.com]

Quoting Airborne Radio Equipment Manual dated April 1943, issued by Signal 
Section, Air Service Command, Patterson Field, Fairfield, OH, "It is imperative 
that planes scheduled for overseas operations have coverage of the 200 to 500 
kilocycle band.  A directive was issued by this office on August 7, 1942, 
regarding this installation of BC-348-H <or later> receivers."  The previous 
paragraph discusses the differences Between BC-348-H and later model receivers, and 
all earlier models.  BC-348-S is supposedly of earlier models (some have said 
BC-348-C) to add the LF/MF band.

In a message dated 7/30/2007 3:08:39 PM Central Daylight Time, 
kargo_cult at msn.com writes: 
> I am more partial to the older ones because: the crystal filter is more 
> conventional
> and (i think) better for overall selectivity with the crystal OUT, and also 
> to (non
> destructlively) improve; because of the ant. trimmer control, and because 
> the
> first ones don't have the pretty useless LF band. ( In fact, i don't think 
> the
> Army needed the LF band for the vast majority of its planes. If you want to
> send a QTE request, you transmit the homing signal on LF, but there's
> really no need to communicate with the ground station on LF, except maybe
> for convenience, not having to change TU's . )

Robert Downs - Houston
<http://www.wa5cab.com> (Web Store)
MVPA 9480
<wa5cab at cs.com> (Primary email)
<wa5cab at comcast.net> (Backup email)
   
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