[Milsurplus] "BC means Basic Component"

[W2HX]

Interesting. I guess during the war they were developing so many radio/electronic systems they needed a better nomenclature system.


73 Eugene W2HX/4
My Youtube Channel: https://www.youtube.com/@w2hx/videos


From: milsurplus-bounces at mailman.qth.net <milsurplus-bounces at mailman.qth.net> On Behalf Of John Vendely via Milsurplus
Sent: Friday, March 27, 2026 12:09 PM
To: milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] "BC means Basic Component"


Howdy,

It appears the "AN system" nomenclature was devised around 1943, with the Navy using it during the war (e.g., AN/ARC-5).  TM 11-600, released in 1947, refers to radio set AN/VRC-5 (a BC-603 and a BC-604 on separate mounting bases), indicating the Army was using it by then...

73,

John K9WT


On 3/27/2026 10:44 AM, W2HX via Milsurplus wrote:
Maybe this was covered but… The nomenclature system was redesigned post WW2 (anyone know when)? So, prior to the AN system, SCR definitely stood for Set, complete Radio.  After the adoption of the AN system it meant something else, no doubt “Surface Water Craft, Carrier, Receiving.”

But this discussion was about BC (basic component) and SCR, both pre-AN system designations.


73 Eugene W2HX/4
My Youtube Channel: https://www.youtube.com/@w2hx/videos


From: milsurplus-bounces at mailman.qth.net<mailto:milsurplus-bounces at mailman.qth.net> <milsurplus-bounces at mailman.qth.net><mailto:milsurplus-bounces at mailman.qth.net> On Behalf Of Daniel Jones via Milsurplus
Sent: Friday, March 27, 2026 7:15 AM
To: Hubert Miller <kargo_cult at msn.com><mailto:kargo_cult at msn.com>
Cc: milsurplus at mailman.qth.net<mailto:milsurplus at mailman.qth.net>
Subject: Re: [Milsurplus] "BC means Basic Component"

Well pardon the intrusion but  I was the only one that provided an official government document. I also mentioned it was from a later date,  So there is that.

I was just providing input which I only do on occasion when I feel like there is some use to what I am providing.

But everyone go ahead and continue saying this or that or other input is wrong with nothing official I’m sure it’s all true.

Daniel

www.K6YIC.com<http://www.K6YIC.com>
DJones at K6YIC.com<mailto:DJones at K6YIC.com>
HH#11973



On Mar 26, 2026, at 21:28, Hubert Miller via Milsurplus <milsurplus at mailman.qth.net<mailto:milsurplus at mailman.qth.net>> wrote:





Sent from my Galaxy


>Subject: Re: [Milsurplus] "BC means Basic Component"

In later manuals.  Specifically the Joint Electronics Type Designation system manual MIL-STD-196a dated 9May57

SCR stands for Surface Water Craft, Carrier, Receiving, >passive/detection.

Pardon me, but i am not seeing how this helps. The Navy's 2 to 4 letter system and the Army's SCR system were both replaced, for new gear, by the AN system, i think 1943.
-Hue Miller

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