Attached (I hope) is the PPT slide that lists the identities of AN-specified system designators, like "PRC-".  (Yes, "Pigeons" was a legitimate "system" during WW2.)  I also included slides 2 and 3 that show the pre-AN component and system designators and current AN component designators, respectively.  My source for this info was the internet; I don't recall specifics, so don't ask.

Hope this helps.


73 de
Gene Smar  AD3F

On Friday, March 27, 2026 at 12:49:11 AM EDT, Gene Smar <[email protected]> wrote:


"BC" (Basic Component) is the thing that folks identify as the principal element of a Set, Complete, Radio kit. The BC-611 is the hand-held radio part of the SCR-536. Other elements of the SCR-536 are the BA-36 and BA-37 BAtteries, BX-48 was the battery BoX for spare tube and crystals for 5 BC-611s, and CS-156 was the canvas CaSe for the -611.

I have a PPT slide as part of a presentation I do on squad radios that lists many of the meanings for the SCR part of AN-designated equipment. If I can figure out how to PDF it, I'll send a copy as an attachment in a day or two.


73 de 
Gene Smar AD3F 

Sent from my Radio Shack TRS-80 model 100 laptop

On Thu, Mar 26, 2026 at 3:25 PM, Brenda Gentry via Milsurplus

Ages ago I read it meant "Basic Component",   usually a part of "SCR____" or Signal Corp Radio.

   B. Gentry, KA2IVY

On 3/26/26 2:44 PM, Hubert Miller via Milsurplus wrote:
Good heavens ! I was trying to look up any info on the BC-976 direction finding radio receiver, and i saw that 'Radionerds' says "BC" means "Boxed Component" !!! Oh ? How is such an error even possible !?
Granted, Radionerds HAS been a blessed lifesaver for me at times, providing  even a manual i had zero chance of finding on my own.
-Hue Miller


Sent from my Galaxy


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