[Milsurplus] Heterodyne Frequency Meters

[Jim Whartenby]

If you go to: https://maritime.org/tech/radionames.htm and "decode" the nomenclature for both the Army and Navy systems, it might make a bit more sense.
In the Army system, SCR decodes as Set, Complete, RadioComponents of the SCR are BC or Basic ComponentFor the SCR-211, the main component is the BC-211, This is further broken down as: Calibration Book MC-177 and Crystal Unit DC-9
In the Navy System, LM breaks down as:L = Precision Calibrating EquipmentM = Radio Transmitting and Receiving Equipment
So, is the glass half full, half empty or twice the size needed to hold the liquid?Regards,JimToo much agreement kills a chat.  E. Cleaver

-----Original Message-----
From: Gordon Smith <gfsmith at cox.net>
To: howard holden <holden7471 at msn.com>; Sam Stokes <sestokes at sonic.net>; Milsurplus at mailman.qth.net <Milsurplus at mailman.qth.net>
Sent: Wed, Apr 21, 2021 10:13 pm
Subject: Re: [Milsurplus] Heterodyne Frequency Meters

Okay, we have 1 "For" and 1 "Against"! Any morevotes? :)
(good points, BTW Howie) :)

At 08:01 PM 4/21/2021, howard holden wrote:

I take a slightly differentview. The answer to your question, from my perspective Sam, is YES. Both.The BC-221 and LM series were used to set a wide variety of equipment(think Command sets, GO-9,s TBWs, and so much more) on frequency. Withoutthem, or something similar with accurate calibration, that equipmentwould have been all but useless in the environment.  At the sametime they could also serve as a transmitter monitor, a signal source forequipment repair or alignment, etc. I believe in this context thedictionary definitions become a bit hazy. 

73, Howie WB2AWQ (I use both LMs and BC-221s from time to time exactly asintended.) 

Sent fromMail forWindows 10

From: Gordon Smith
Sent: Wednesday, April 21, 2021 7:47 PM
To: Sam Stokes;Milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] Heterodyne Frequency Meters

 

Hi Sam,
At the risk of being word nerdy (?), I would submit that a heterodynefrequency meter is a piece of test equipment. A component is, per MerriamWebster," element,component,constituent,ingredient mean one of the parts of a compound or complexwhole". This means that a component is part of an assembly and ifyou remove it the thing it is part of become "non whole". Aheterodyne frequency meters is for testing and once that testing iscompleted can be removed from the radio it is being used to test whilethe radio is still "whole". 

And technically, I do not think they can be categorized as "UsedWith but Not Part Of". A radio does not "use" theheterodyne frequency meter for any of it's functions, it is an externalfrequency source used for the calibration of the radio. The radio worksjust fine without it. A Panadapter would be an example of "used withbut not part of".

Just my 2c 

73, Gordon KJ6IKT

At 06:17 PM 4/21/2021, Sam Stokes wrote:

For indexing purposes, are heterodyne frequency meters  LM-( ) and an SCR-221- (  ) pieces of test equipment or a component?Could they be categorized as Used With but Not Part Of? -- Sam Stokes,Publisher, KG6WYZ 3rd Edition of Rings of Supersonic Steel The LastMissile Site Fort Baker Through the Yearshttp://www.holeintheheadpress.com______________________________________________________________ Milsurplusmailing list Home:http://mailman.qth.net/mailman/listinfo/milsurplus Help:http://mailman.qth.net/mmfaq.htm Post:mailto:Milsurplus at mailman.qth.net This list hosted by:http://www.qsl.net Please help support this email list:http://www.qsl.net/donate.html
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