[ARC5] More ZB

[Jack Antonio]

All this ZB talk got me to rounding up my ZB and AN/ARR-2 stuff.
 
I have two of the test oscillators for the ZB system. One is a
Navy CZR-60013, the other one has what looks like an
Army tag.  A contract number of 9245-WF-43.
 
But, the nomenclature part of the tag has been obliterated.
There is just the tip of the first character showing, which looks
like it *might* be an A, but that doesn't seem like it would be
right. Seems like it should be an I-something.
 
So the question is, did this test oscillator have a Signal Corps
designation?
 
I fired off my TS-24/ARR-2, and found that its carrier frequency was 
about 246.3, and wandered around about 50kc around that frequency,
and that the output was anywhere from -5 to -10 dbm into the spectrum
analyzer. I doubt however that the output impedance of the oscillator
is 50 ohms, so this output level could be inaccurate.
 
The subcarrier frequencies were very close to 20 db down
from the carrier.
 
Jack Antonio WA7DIA/4