[Milsurplus] R-648

[Scott Johnson]

I might add, the ARR-41 has several modules in common with the ARC-38, so 
one might think of it as a manually tuned receiver from an ARC-38, Mike is 
absolutely correct, the USAF never procured them, early ones were Collins, 
later ones were made by another contractor that slips my mind.  At any rate, 
it is one of my favorite receivers (next to the ARR-15), which , 
interestingly enough share design features with the ARC-2 receiver section, 
and the 18S- receiver section.

Scott


----- Original Message ----- 
From: "Mike Morrow" <kk5f at earthlink.net>
To: "John Page" <k4kwm at hotmail.com>; <milsurplus at mailman.qth.net>
Sent: Saturday, October 01, 2005 1:13 PM
Subject: Re: [Milsurplus] R-648


> John asked:
>
>
>>Guys, what is an R-648. Saw one today on "that other place". It looks like
> a
>>mini R-390...
>
> The R-648/ARR-41 was made by Collins, but I don't know of any module or
> major assembly in the R-648/ARR-41 that is interchangable with one in the
> R-390, -390A, or -392 receivers.  The similarity is coincidental and
> cosmetic.
>
> The R-648/ARR-41 is the auxilary HF receiver that was normally installed
> with the US Navy's AN/ARC-38 HF AM/CW receiver-transmitter (also made by
> Collins) in larger aircraft.  The AN/ARC-38 was the USN's mid-1950s
> replacement for their earlier AN/ARC-25 HF set (combo of the T-47/ART-13 
> and
> the R-105/ARR-15).  The frequency coverage and modes of operation of the
> AN/ARR-41 are identical to that of the AN/ARC-38 (2 to 25 mc), plus the
> AN/ARR-41 covers the LF/MF beacon band.  Anyone re-creating an AN/ARC-38 
> set
> should include the AN/ARR-41 with it as a matter of course.
>
> Don't believe the common ham operator BS stating that the R-648/ARR-41 was 
> a
> replacement for the USAF's BC-348 for use with the T-47A/ART-13.  It 
> wasn't.
> There's at least one ham's ARR-41 web page that persists in putting out 
> that
> nonsense long after that ham was shown otherwise.  The USAF did not use 
> the
> AN/ARC-38 or AN/ARR-41 except in the few aircraft they got from the USN 
> that
> already had them installed, and there's absolutely no documentation of the
> military ever pairing an AN/ARR-41 with an AN/ART-13.
>
> 73,
> Mike / KK5F
>
> ______________________________________________________________
> Milsurplus mailing list
> Home: http://mailman.qth.net/mailman/listinfo/milsurplus
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Milsurplus at mailman.qth.net