Not really rare, just the latest iteration of the receivers, from my memory of reading the US Navy manuals on the radios.  In fact, I have a control for the Broadcast receiver that is the standard ARINC width.
From memory, the USN didn't standardize the ARC/ARA radios until early 1960s.
R

On Tuesday, April 15, 2025 at 02:03:23 PM EDT, J Mcvey via ARC5 <[email protected]> wrote:


I never saw one of those (ARC?) broadcast receivers with the loop option.
That's a rare beast.
The Arc beacon receivers all had the loop option. I've seen lots of those.

On Tuesday, April 15, 2025 at 11:35:05 AM EDT, Al Klase <[email protected]> wrote:


Gang,

Recent discussion of CBY-46145 and BC-946B bring to mind my experience with R-24/ARC-5 as a BCB DX receiver.


Here's my log from our radio club's DX contest back in 2012:


Sadly, YVKS  has been QRT for a while now.

95% of the time you'll bemuch  better off with a tuned loop rather than a wire antenna.

More info here:  https://www.skywaves.ar88.net/homebrew/ARC-5_PS/ARC-5_PS.html

Have fun,
AL


--
Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/
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