[ARC5] ARC-2?

[Michael Hanz]

On 2/22/2018 9:17 AM, J Mcvey via ARC5 wrote:
> ARC2 on Ebay 
> <https://www.ebay.com/itm/183057234636?_trksid=p11021.c100851.m5053&_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D1%26asc%3D20170803121420%26meid%3D28853369a10848bf9a1d5ed141ea78bf%26pid%3D100851%26rk%3D4%26rkt%3D7%26sd%3D192463001569%26itm%3D183057234636&ul_noapp=true>
>
> <https://www.ebay.com/itm/183057234636?_trksid=p11021.c100851.m5053&_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D1%26asc%3D20170803121420%26meid%3D28853369a10848bf9a1d5ed141ea78bf%26pid%3D100851%26rk%3D4%26rkt%3D7%26sd%3D192463001569%26itm%3D183057234636&ul_noapp=true>
> I have never seen one of these before.  Seems rather interesting, like 
> a compact version of the BC348/ART-13 combo.
> It's good for 40 and 80 meters , 30 watts with ....AUTOTUNE!

It's not that uncommon, but not commonly used in amateur service. The 
one below in the "flight deck" is a rare original contract issue (non-A) 
set.  It's a handful to lug around, even without the internal 
dynamotor.  Integrating transmitters and receivers into a single 
transceiver became a popular way of reducing the "box count" early in 
the war, and that trend that was begun in the VHF sets began to be seen 
in the HF realm as well.  It was actually pioneered by Bendix in their 
1940ish RTA-1B, though this Collins set shared little with that design 
other than the same general size.   It followed Navy requirements in 
having channelized autotune capability, though it has only eight 
channels rather than the ten that the ATC and AN/ART-13 enjoyed.  A 
variety of ways to reduce its barn door selectivity have been tried with 
varying degrees of success, complicated by its variable IF tuning.  Most 
of them have been reported on this reflector.

http://aafradio.org/flightdeck/ARC-2a.jpg

The shock mount is far less common, and unfortunately has an unusual 
connector on the back that is often missing even if you do locate the 
mount itself:



Breck K4CHE has an article on his web page about an innovative way of 
making a connector for his - http://k4che.com/Connectors/ARR-15connpg1.htm

           73,
  - Mike  KC4TOS
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