TB 9-4931-535-24
(5) Press ENTRY INSTR PRESET key.
(6) Set synthesizer/level generator for a 20.08 MHz, -25 dBm output.
(7) Adjust MARKER/CONTINUOUS ENTRY knob to place marker on peak of
displayed signal. TI marker frequency indication will be between 20000000 and 20160000 Hz.
b. Adjustments. Refer to paragraph 6d.
9. Range Calibration
a. Performance Check
(1) Connect synthesizer/level generator OUTPUT 50
to TI 50-75
input.
(2) Press keys and enter values using ENTRY keys as listed in (a) through (g) below:
ENTRY INSTR PRESET.
(a)
ENTRY CENTER FREQUENCY to 150 kHz.
(b)
ENTRY REFERENCE LEVEL controls to -20 dBm.
(c)
ENTRY dB/DIV to 1 dB.
(d)
RBW-VBW-ST ENTRY RES BW to 10 Hz.
(e)
MARKER/CONTINUOUS ENTRY MAN SWEEP to on.
(f)
INPUT REF LVL TRACK to off.
(g)
(3) Set synthesizer/level generator for a 150 kHz, -25 dBm output.
(4) Press keys as listed in (a) through (c) below:
(a) MARKER/CONTINUOUS ENTRY OFFSET to on.
(b) MARKER/CONTINUOUS ENTRY ENTER OFFSET key.
(c) INPUT ENTRY RANGE key.
(5) Press ENTRY STEP
key. TI marker indication will be between -0.7 and 0.7 dB.
(6) Repeat (5) above for remaining TI range settings.
b. Adjustments. Refer to paragraph 6d.
10. Amplitude Linearity
a. Performance Check
(1) Connect synthesizer/level generator OUTPUT 50
to TI 50-75
input.
(2) Press keys and enter values using ENTRY keys as listed in (a) through (e) below:
ENTRY INSTR PRESET.
(a)
SWEEP ENTRY MANUAL to 1 MHz.
(b)
RWB-VBW-ST ENTRY RES BW to 3 Hz.
(c)
RBW-VBW-ST ENTRY VIDEO BW to 1 Hz.
(d)
or .
INPUT ENTRY RANGE to 10 dBm using ENTRY STEP
(e)
(3) Set synthesizer/level generator as listed in (a) through (c) below:
(a) FREQUENCY to 1 MHz.
(b) AMPLITUDE to 10 dBm.
(c) AMPTD INCR to 0.1 dBm.