[Milsurplus] Re: DFing receiver re-radiation in WW 2?

[antqradio at juno.com]

I stand corrected, the BC-189 does precede the BC-312, making them Signal
Corps superhetrodynes number 1 and 2 respectively.

My reference was  "The Signal Corps: The Emergency" page 139, second
column.  Indirect reference to the BC-189 is found on the same page at
bottom of the first column.  Must have missed this when skim reading.  It
is the only mention of the BC-189 that I have found so far.  The only
receiver directly mentioned on this page is the BC-312.

Not having the BC-189 receiver, is it safe to assume that the BC-312 (and
family) is superior in performance?  Any information out there?

As for the US Navy having superhets in the early 30s, there seems to have
always been a very close relationship between this service branch and
RCA.  In fact, wasn't RCA created because the Navy needed reliable radio
communications and no single radio manufacturer had all of the necessary
patents and licences?

Regards,
Jim

On Mon, 28 Jun 2004 16:58:14 -0400 "ed" <dgnova at erols.com> writes:
> According to signal corps publications, the first US Army 
> superhetrodyne
> was the BC-189
> My source is the 3 books put out by the signal corps, telling their
> history