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

[Rob Flory]

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