[Milsurplus] Heterodyne Frequency Meters

[howard holden]

I take a slightly different view. 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. Without them, or something similar with accurate calibration, that equipment would have been all but useless in the environment.  At the same time they could also serve as a transmitter monitor, a signal source for equipment repair or alignment, etc. I believe in this context the dictionary definitions become a bit hazy.

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

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From: Gordon Smith<mailto:gfsmith at cox.net>
Sent: Wednesday, April 21, 2021 7:47 PM
To: Sam Stokes<mailto:sestokes at sonic.net>; Milsurplus at mailman.qth.net<mailto: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 heterodyne frequency meter is a piece of test equipment. A component is, per Merriam Webster, " element<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.merriam-webster.com%2Fdictionary%2Felement&data=04%7C01%7C%7C1e229cca6d594f33d9ec08d9053903b2%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637546564694637405%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=MdAEERF4Xe8EahfpKY%2FbEw8U0%2BVqdmU6g9Vm9G%2FYJwM%3D&reserved=0>, component<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.merriam-webster.com%2Fdictionary%2Fcomponent&data=04%7C01%7C%7C1e229cca6d594f33d9ec08d9053903b2%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637546564694637405%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=hFfnsogtmTlC%2FXv%2BQ%2B9CV3YcqR37nFsiLwcQJm2F2jE%3D&reserved=0>, constituent<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.merriam-webster.com%2Fdictionary%2Fconstituent&data=04%7C01%7C%7C1e229cca6d594f33d9ec08d9053903b2%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637546564694647362%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=kx1K4lUOmaUMzEqcCST7B0qhbo5MOZ5Gyvpn5ZY%2BtYM%3D&reserved=0>, ingredient<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.merriam-webster.com%2Fdictionary%2Fingredient&data=04%7C01%7C%7C1e229cca6d594f33d9ec08d9053903b2%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637546564694647362%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=dl9EkptO3%2Fdn1A0aeAMu7%2FsOfTIF%2Bf4YcFf7FWClq0M%3D&reserved=0> mean one of the parts of a compound or complex whole". This means that a component is part of an assembly and if you remove it the thing it is part of become "non whole". A heterodyne frequency meters is for testing and once that testing is completed can be removed from the radio it is being used to test while the radio is still "whole".

And technically, I do not think they can be categorized as "Used With but Not Part Of". A radio does not "use" the heterodyne frequency meter for any of it's functions, it is an external frequency source used for the calibration of the radio. The radio works just fine without it. A Panadapter would be an example of "used with but 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 Last Missile Site Fort Baker Through the Years http://www.holeintheheadpress.com<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.holeintheheadpress.com%2F&data=04%7C01%7C%7C1e229cca6d594f33d9ec08d9053903b2%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637546564694657318%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=vzc4cmVTWauGOEZrcJdOCtKpHxfgBKv%2FSpHkrie%2FCMM%3D&reserved=0> ______________________________________________________________ Milsurplus mailing list Home: http://mailman.qth.net/mailman/listinfo/milsurplus<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Fmilsurplus&data=04%7C01%7C%7C1e229cca6d594f33d9ec08d9053903b2%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637546564694657318%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=CDQNcqmbq4kYP7XDdCrMf5ag4W9%2FaOtIlaaICIbUXOc%3D&reserved=0> Help: http://mailman.qth.net/mmfaq.htm<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=04%7C01%7C%7C1e229cca6d594f33d9ec08d9053903b2%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637546564694667272%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=T479EQtxtmpy8PV7uQdreT9tDNsS1RlybUR9DThcpsE%3D&reserved=0> Post: mailto:Milsurplus at mailman.qth.net This list hosted by: http://www.qsl.net<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=04%7C01%7C%7C1e229cca6d594f33d9ec08d9053903b2%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637546564694667272%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=g%2F0lqN%2Bo5MGZHgwN0pXMyIOeGVUTYV0pT5IcJDhaqbs%3D&reserved=0> Please help support this email list: http://www.qsl.net/donate.html<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=04%7C01%7C%7C1e229cca6d594f33d9ec08d9053903b2%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637546564694667272%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ToM%2BatCphtqOMmApc%2By0%2BFnyccnlu0ZoUXZnwxFvvXE%3D&reserved=0>

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