[Milsurplus] CRV-46123...what is it?...

[Mike Hanz]

Hue Miller wrote:

> Wait a minit. Wasn't the standard loop for the DZ, just the
> DW ?

It appears as though it might be similar in the photos of the original 
DZ, Hue, but apparently the inner construction was different to obtain 
the low impedance.  Looks like the RCA improvements for the DZ-1 and -2 
changed its appearance quite a bit, though.

> The Navy had a lot of fine ground equipment, but it seems they never developed
> on their own, a topnotch HF aircraft receiver during WW2. Instead they put to
> use the USAAF's  BC-348. On their own, all they had was the ARB, RU, RAX,
> RA-10, none of which come up to the BC-348's level.
> Also, in the late 1930s, while the Navy had this early-30s looking DZ df, the Army
> already had a much more modern looking df receiver, but not ADF, the BC-310.

While I'll admit the remote tuning requirement of the ARB makes it a bit 
kludgey to use, it's an excellent short wave receiver in its own right. 
  Just because it doesn't match our current operational preferences as 
hams or SWL buffs doesn't make it fundamentally a bad set.  And the 
RAX-1 triplets, for another example, are vastly superior to the BC-348 
in terms of dial length and frequency coverage, among other things. 
It's hard to compare apples and oranges when the basic requirements for 
the competing sets were so different at their inception.

I'm just being the devil's advocate here, because I pretty much agree 
with you and Mike Morrow on the assertion about the BC-348...or at least 
almost.  The -224/-348 are my second favorite sets in the "flight deck," 
and their ergonomics and performance are excellent.  Just to muddy the 
waters further, my personal choice for best of breed is the ARR-7, which 
is the repackaged Halli SX-28.  How do three crystal and three tuned 
circuit selectivities compare with the single off/on crystal filter of 
the -348?  How about the neato motor tuning drive?  With an APA-10 
panadapter it's a superb ham set for its age.  If Hallicrafters had 
adopted a precision dial like the BC-348 has instead of that cheap 
celluloid thing, IMO it would win hands down.

Time for breakfast,
Mike