[Milsurplus] "BC means Basic Component"

[John Vendely]

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 
> <https://www.youtube.com/@w2hx/videos>_
>
> *From:*milsurplus-bounces at mailman.qth.net 
> <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>
> *Cc:* 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
>
> HH#11973
>
>
>
>     On Mar 26, 2026, at 21:28, Hubert Miller via Milsurplus
>     <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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