TB 9-4931-540-24
(22) Repeat technique of (2) through (21) above for remaining TI INPUT ENTRY
RANGE settings.
(23) Disconnect synthesizer/level generator rear panel 10 MHz OUTPUT from
function generator rear panel 10 MHz In.
input.
(24) Disconnect synthesizer/level generator OUTPUT 50
from TI 50-75
b. Adjustments. Refer to paragraph 6 d.
13. 1 M
Flatness
a. Performance Test
(1) Press keys and enter values using ENTRY keys as listed in (a) through (l) below:
ENTRY INSTR PRESET.
(a)
INPUT ENTRY RANGE to -5 dBm using ENTRY STEP or .
(b)
ENTRY REFERENCE LEVEL to -6 dBm.
(c)
INPUT REF LVL TRACK to off.
(d)
ENTRY dB/DIV to 1 dB.
(e)
ENTRY START FREQ to 20 Hz.
(f)
ENTRY STOP FREQ to 1 kHz.
(g)
RBW-VBW-ST ENTRY RES BW to 3 Hz and wait for TI to calibrate ( 10 sec).
(h)
RBW-VBW-ST ENTRY VIDEO BW to 10 kHz.
(i)
RBW-VBW-ST ENTRY SWEEP TIME to 30 sec.
(j)
ENTRY blue shift and then ENTRY CAL OFF.
(k)
ENTRY SAVE and then 1.
(l)
input.
(2) Connect TI TRACKING GENERATOR output to 50-75
(3) Adjust TRACKING GENERATOR AMPLITUDE control to position trace in
the center of crt display.
(4) Press SWEEP SINGLE key twice and allow sweep to complete.
(5) Press keys as listed in (a) through (d) below:
B.
TRACE STORE A
(a)
TRACE A - B to on.
(b)
TRACE VIEW B to off.
(c)
INPUT IMPEDANCE 1 M .
(d)
input.
(6) Disconnect TRACKING GENERATOR output from 50-75
f
input using a 50
(7) Connect TRACKING GENERATOR output to 1 M
eedthrough termination.
(8) Press SWEEP SINGLE key twice and allow sweep to complete.
