TB 9-4931-540-24
c. Set LINE switch to on and allow TI at least 20 minutes for warm-up.
d. Connect TI rear panel 10 MHz REF OUTPUT to synthesizer/level generator rear
panel 40/N MHz REF INPUT. Maintain connection for remainder of this procedure.
8. Counter and Marker Frequency
a. Performance Check
to TI 50-75 .
(1) Connect synthesizer/level generator OUTPUT 50
(2) Press keys and enter values using ENTRY keys as listed in (a) through (c) below:
(a) ENTRY INSTR PRESET.
(b) SWEEP ENTRY MANUAL to 9 MHz.
(c) MARKER/CONTINUOUS ENTRY COUNTER to on.
(3) Set synthesizer/level generator for a 9 MHz, 0 dBm output.
(4) TI counter frequency indication will be between 8999999.7 and 9000000.3 Hz.
(5) Press keys and enter values using ENTRY keys as listed in (a) through (d) below:
ENTRY INSTR PRESET.
(a)
RBW-VBW-ST ENTRY RES BW to 1 kHz.
(b)
ENTRY FREQUENCY SPAN to 10 MHz.
(c)
ENTRY dB/DIV to 1 dB.
(d)
(6) Set synthesizer/level generator for a 20 MHz, 0 dBm output.
(7) Press SWEEP SINGLE key twice.
When sweeping is complete, press
MARKER/CONTINUOUS ENTRY PEAK SEARCH key. TI marker frequency indication
will be between 19980000 and 20020000 Hz.
b. Adjustments. Refer to paragraph 6 d.
9. Range Calibration
a. Performance Check
(1) Connect synthesizer/level generator OUTPUT 50
to TI 50-75
input.
(2) Set frequency/level generator as listed in (a) through (c) below:
(a) FREQUENCY to 150 kHz.
(b) AMPTD INCR to 5 dBm.
(c) AMPLITUDE to -45 dBm.
(3) Press keys and enter values using ENTRY keys as listed in (a) through (e) below:
ENTRY INSTR PRESET.
(a)
SWEEP ENTRY MANUAL to 150 kHz.
(b)
ENTRY REFERENCE LEVEL to -44.5 dBm.
(c)
ENTRY dB/DIV to 1 dB.
(d)
