TB 9-4931-488-24
b. Adjust meter mechanical zero adjustment (located
above
MODULATION
FREQUENCY switch) until needle is over 0 line on TI meter.
d. Connect autotransformer to a 115 V ac source and adjust autotransformer for a 117
V output.
e. Press LINE OFF ON pushbutton to ON and allow 2 hours for temperature
stabilization.
f. Position controls as listed in (1) through (17) below:
(1) On front panel: SCALE press FM k/MHz pushbutton.
(2) Set COUNTER MODE pushbuttons as listed in (a) through (e) below:
(a) EXPAND X10 and X100 released.
(b) LOCK released.
(c) INT EXT pressed.
(d) EXT released.
(e) +1/2 DIGIT released.
(3) AM switch to OFF.
(4) AUDIO OUTPUT LEVEL control fully ccw.
(5) AM control fully ccw.
(6) MODULATION FREQUENCY switch to FREQ FIXED 1 kHz (1000 Hz for
opt 004).
(7) FM switch to OFF.
(8) PEAK DEVIATION switch to 5 kHz.
(9) FM control fully ccw.
(10) RANGE MHz switch to 1 - .5.
(11) FREQUENCY TUNE control fully cw.
(12) FINE TUNE control centered.
(13) OUTPUT LEVEL switches to -20 dBm (-20dBm and 0dBm for opt 004).
(14) OUTPUT LEVEL vernier controls (not opt 004) centered.
(15) TIME BASE VERN control to CAL.
(16) RF OFF/ON (RF OUT OFF/ON for opt 004) switch to OFF.
(17) TIME BASE (rear panel) EXT INT switch to INT.
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