WW2-Korea era equipment. What is it?
Firearm & Gun Forum - FireArmsTalk.com > General Discussion Forums > The Club House > WW2-Korea era equipment. What is it?

Reply
 
LinkBack Thread Tools Display Modes
Old 06-27-2012, 11:50 PM   #1
Feedback Score: 1 reviews
 
Join Date: Feb 2011
Location: Reno,Texas
Posts: 10,211
Liked 6563 Times on 3635 Posts
Likes Given: 27929

Default WW2-Korea era equipment. What is it?

A few years ago, we picked up this wavemeter from an antique shop for about $25. It looked cool, and I though it would look good on a shelf. The problem is, I don't really know anything about it. I've tried looking it up, but I never found out ANYTHING about it other then that it may have been used during either WW2, or Korea. We think it may have also came off a aircraft, but we're not sure.

Sorry about the crappy pics, I took them with my phone.

The big dial also has some writing, but I couldn't get a readable picture with my phone. Here's what it says.

Left lower corner--- TYPE DO-41
---------------------- F.S.A.=.00002

Right lower corner--- MODEL
------------------------ AAA257

Middle--- GENERAL ELECTRIC
---------- MADE IN U.S.A.

The scale on the dial also goes up to 100.

--------------------------------------------------------------------------

There is also some extremely small writing on the black dial next to the big white one.

It says NP110918

----------------------------------------------------------

Finally, there is a small logo next to the ID plate shown in the picture.

I can't completely read it, but it looks like it's an AN in a circle with some writing under it.


Any ideas what this thing is, what it came off of, or what it was used for?

Thanks

downsized_0627121833.jpg   0627121834.jpg  
__________________
texaswoodworker is offline  
 
Reply With Quote

Join FirearmsTalk.com Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join FirearmsTalk.com Today! - Click Here


Old 06-28-2012, 12:15 AM   #2
Feedback Score: 0 reviews
 
Vincine's Avatar
 
Join Date: Jun 2011
Location: Adirondack Mts.
Posts: 3,336
Liked 1739 Times on 898 Posts
Likes Given: 1338

Default

Looks like a calibration or measuring device for phone lines or radios. Does the meter say cycles or Hz or something?

__________________
"Sometimes I pretend to be normal, but it's boring and I go back to being me."
"You might as well be yourself, people won’t like you anyway."
Vincine is online now  
 
Reply With Quote
Old 06-28-2012, 12:17 AM   #3
Feedback Score: 1 reviews
 
Join Date: Feb 2011
Location: Reno,Texas
Posts: 10,211
Liked 6563 Times on 3635 Posts
Likes Given: 27929

Default

Quote:
Originally Posted by Vincine View Post
Looks like a calibration or measuring device for phone lines or radios. Does the meter say cycles or Hz or something?
I couldn't find any units of measurement marked on it.
__________________
texaswoodworker is offline  
 
Reply With Quote
Old 06-28-2012, 12:43 AM   #4
Moderator
FTF_MODERATOR.png
Feedback Score: 0 reviews
 
JonM's Avatar
 
Join Date: Nov 2009
Location: Rochester WI,Rochester WI
Posts: 17,586
Liked 5678 Times on 2965 Posts
Likes Given: 375

Default

its a test device for radio equipment. your missing a knob. it looks kinda like an antenna tester or maybe a line tester. wavemeter ts-192/cpm-4 is the name of the device. if you search hard enough you will likely find the military manuals for its usage

__________________

"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith

The problem with being stupid is you cannot simply decide to stop doing dumb things...

JonM is offline  
 
Reply With Quote
Old 06-28-2012, 01:52 AM   #5
Retired
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
danf_fl's Avatar
 
Join Date: Apr 2010
Location: LA (Lower Alabama),FL
Posts: 10,268
Liked 2878 Times on 1662 Posts
Likes Given: 1236

Default

I have to agree. A SWR meter is used to match the radio to the antenna for the best trans/receive signals.

I believe the knob was used to bypass the requirement of attenna adjustment.

__________________

Amendment II:
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."

Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)

danf_fl is offline  
 
Reply With Quote
Old 06-28-2012, 05:23 PM   #6
Feedback Score: 1 reviews
 
Join Date: Feb 2011
Location: Reno,Texas
Posts: 10,211
Liked 6563 Times on 3635 Posts
Likes Given: 27929

Default

Quote:
Originally Posted by JonM View Post
its a test device for radio equipment. your missing a knob. it looks kinda like an antenna tester or maybe a line tester. wavemeter ts-192/cpm-4 is the name of the device. if you search hard enough you will likely find the military manuals for its usage
Quote:
Originally Posted by danf_fl View Post
I have to agree. A SWR meter is used to match the radio to the antenna for the best trans/receive signals.

I believe the knob was used to bypass the requirement of attenna adjustment.
I did a little Googleing, and I found a manual that mentions it. I didn't read enough of it to know exactly what they used it for, but it was possibly used to test electrical equipment (most likely radio equipment, or radio waves).

Thanks guys. I'm going to keep looking into it.
__________________

Last edited by texaswoodworker; 06-28-2012 at 05:26 PM.
texaswoodworker is offline  
 
Reply With Quote
Old 06-28-2012, 08:49 PM   #7
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
utf59's Avatar
 
Join Date: Feb 2008
Location: Orange Park,FL
Posts: 671
Liked 42 Times on 23 Posts
Likes Given: 53

Default

Since it's from the Signal Corps, I'd agree with Dan that it's probably an SWR meter.

If you have a CB (and maybe the right adapter) you can use it on that.

IF YOU DON'T CARE ABOUT RADIO STUFF, STOP READING NOW!

An SWR (Standing Wave Ratio) meter measures standing waves coming from an antenna. Standing waves are waves that are off-frequency from the intended sending frequency. They sort of "fill in" within waves sent at the intended frequency and distort the signal. Think of ripples in a pond. If one thing makes ripples (waves), they are clear. If something smaller also makes waves, they bump into each other, and there are smaller waves within the original wave pattern. When the radio and antenna are in tune, the signal is clearer.

Operating frequencies change daily (or even more often) and field stations move frequently, so you can't set up an antenna one time and leave it. Antennas were often adjustable (two spools of antenna wire), and they could be set at the correct length for the frequency being used. Once that was done, you tuned the antenna. Part of that procedure included checking the SWR meter. If it was too high, you had to readjust the length of the antenna.

utf59
Former 31C (single-channel radio operator)
__________________

"An armed society is a polite society." — Robert A. Heinlein

"After a shooting spree, they always want to take the guns away from the people who didn't do it. I sure as hell wouldn't want to live in a society where the only people allowed guns are the police and the military."
— William S. Burroughs

utf59 is offline  
 
Reply With Quote
Old 06-28-2012, 09:12 PM   #8
Feedback Score: 0 reviews
 
Vincine's Avatar
 
Join Date: Jun 2011
Location: Adirondack Mts.
Posts: 3,336
Liked 1739 Times on 898 Posts
Likes Given: 1338

Default

My other thought was that it was part of Mr. Peabody's 'Way Back Machine', but I guess not.

__________________
"Sometimes I pretend to be normal, but it's boring and I go back to being me."
"You might as well be yourself, people won’t like you anyway."
Vincine is online now  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
Best value cleaning equipment? JT426 General Rifle Discussion 11 09-27-2011 04:05 PM
Reloading equipment SmithKid308 The Club House 3 07-20-2011 04:39 PM
North Korea Kelly J Politics, Religion and Controversy 0 12-25-2009 04:23 AM
All the Equipment FCross7 Ammunition & Reloading 37 11-20-2009 07:54 PM