[Milsurplus] Frequency Measuring Test, What's an LR?

[Rob Flory]

It is indeed a General Radio product.

RF

On Wed, Nov 4, 2015 at 5:34 AM, Nick England <navy.radio at gmail.com> wrote:

> Photo of BB-55's LR here
> http://www.navy-radio.com/ships/bb55/patch-086.JPG
>
> IIRC this is a General Radio gadget.
>
>
> On Wednesday, November 4, 2015, Rob Flory <farmer.rob.flory at gmail.com>
> wrote:
>
>> An old buddy who used to hang around on a submarine asked me what an LR
>> is.  Hi Howie!
>>
>> The LR, too big for submarines or casual collectors, is found on larger
>> vessels and shore stations.  I have played with one casually at USS
>> MASSACHUSETTS but was never man enough to really master it.  I'm not sure
>> who I admire more, the man who can operate it or the man who can lift it.
>> It dwarfs the RBB and RBC receivers it usually hangs around with.
>>
>> It has a crystal controlled multivibrator that makes harmonics every 100,
>> 20, or 10kc.  In between those points there is an audio beat note meter to
>> tell you the frequency increment from the crystal generated landmark.
>>
>> The LR is patched to the antenna panel where its signal can be patched to
>> receivers to set them up, or to the master oscillators of the
>> transmitters.
>>
>>
>> There is some information here, thanks Nick as usual for your
>> contributions
>> to documentation of this cool old stuff.
>>
>> http://www.virhistory.com/navy/manuals/cemb/cemb05-l.pdf
>>
>> RF
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>
>
> --
> Nick England K4NYW
> www.navy-radio.com
>
>