[R-390] For Sale: SG-1144/U Sig Gen (Solid state successor to the AN/URM-25 series)

[Jerry Kincade]

Hi fellow sore-wristers,
I have an HF sig gen for sale, an ex-military SG-1144/U. This is a solid
state general purpose 50 KHz - 80 MHz unit with a metered and leveled output
range of -127 dbm to +10 dbm in five freq bands. Puts out CW, AM (400 or
1000), and FM (0-75 KHz deviation, FM modulation available above 28 MHz
only). Red LED 4-digit freq counter built in. Built in the early 80's. I
believe this was the general purpose sig gen that replaced the AN/URM-25(x)
series. I have used it on my bench and it is very stable after warmup and
works just fine on all ranges and modes. Modulation deviation and
percentages were checked against my Racal 9008 mod meter and were very
accurate. The output attenuator was tested against a lab grade
millivoltmeter down to -50 dbm (as low as I could test it) and is also very
accurate. Standard operating method is to "T" the output to a "real" freq
counter, use the sig gen's 4-digit LED freq counter to get in the ball park,
then tweak the freq fine tune to home in. About 16" x 17" x 7", 31 pounds.
Front panel is very good, case is decent with a beige (!) repaint job over
the military grey, a few chips in the paint. $80 plus shipping will buy it,
and although I can't guarantee NIST calibration, I will certainly guarantee
it all works as advertised. A couple of digital photos are available to
email if somebody wants to see it.
73, Jerry W5KP  Mustang, OK