[Milsurplus] LF in a B-17?

[WA5CAB at cs.com]

I can add a little more official info to this thread.  Quoting from the 
Airborne Radio Equipment Handbook, dated April, 1943, 

"BC-348-H Receivers.  Receivers used in SCR-287, namely BC-348 prior to model 
BC-348-H, are nor provided with coverage of the 200-to 500-kilocycle band.  
Models BC-348-H and later have this band....

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 receivers."

The office referred to is Signal Section, Air Service Command, Patterson 
Field, Fairfield, Ohio.

Some earlier sets, as we know, were modified to add the LF band.  And the el 
cheapo sets (BC-348-J/N/Q) all had it.

In a message dated 8/24/2004 10:36:52 PM Central Daylight Time, 
arc5 at ix.netcom.com writes: 
> Given the monitoring times of 1545 and 1615,
> plus the use of the term "guarding" in the aircraft
> radio log, plus the excerpt from the training document,
> we can confidently conclude that, among other duties,
> the LF capabilities of  WWII AAF heavy aircraft
> were there to comply with the Distress requirements
> of "ships" capable of transiting the open ocean.

Robert Downs - Houston
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