Specifications

TM 11-5820-670-30
2-33. TONE SQUELCH ADJUSTMENT. (CONT)
ADJUSTMENT PROCEDURE
1.
2.
3.
4.
5.
Place +28 VDC ON-OFF switch on test set to ON.
Set control unit mode switch to T/R, VOL control fully clockwise, SQUELCH switch to TONE,
and frequency selectors to 60.05 MHz.
Set Signal Generator AN/URM-127 amplitude control to 0, and adjust output frequency to
150 Hz.
Set Signal Generator AN/URM-103 FUNCTION selector switch to EXT MOD, and adjust for a 10
microvolt output at 60.05 MHz.
Adjust Signal Generator AN/URM-127 for 3 kHz deviation as indicated on AN/URM-103 modula-
tion meter.
EL1AT239
6. Adjust potentiometer R5217, on A5500 assembly, so receiver-transmitter just unsquelches.
2-139