TB 9-4931-535-24
(10) Adjust MARKER/CONTINUOUS ENTRY knob to move marker to the most
positive point on trace using TI marker amplitude indication. TI marker amplitude
indication will be between 0.7 and 0.7 dB.
f
input and 50
(11) Disconnect TRACKING GENERATOR output from 1 M
eedthrough termination.
(12) Press keys and enter values using ENTRY keys as listed in (a) through (e) below:
MARKER/CONTINUOUS ENTRY OFFSET key to off.
(a)
INPUT IMPEDANCE 50 .
(b)
ENTRY START FREQ to 10 MHz.
(c)
ENTRY STOP FREQ to 40 MHz.
(d)
TRACE A - B to off.
(e)
(13) Repeat (2) through (11) above. TI marker amplitude indication will be between
1.5 and 1.5 dB in (10) above.
b. Adjustments. Refer to paragraph 6d.
14. Noise
a. Performance Check
(1) Ensure TI front panel inputs are open.
(2) Press keys and enter values using ENTRY keys as listed in (a) through (f) below:
ENTRY INSTR PRESET.
(a)
ENTRY CENTER FREQUENCY to 9.35 MHz.
(b)
ENTRY REFERENCE LEVEL to -75 dBm.
(c)
RBW-VBW-ST ENTRY RES BW to 30 kHz.
(d)
RBW-VBW-ST ENTRY VIDEO BW to 30 Hz.
(e)
MARKER/CONTINUOUS ENTRY MAN SWEEP to on.
(f)
(3) Average TI marker amplitude indication will be <-100 dBm.
(4) Press RBW-VBW-ST ENTRY RES BW key.
(5) Press ENTRY STEP
key.
(6) Average TI marker amplitude indication will be <-104 dBm.
(7) Repeat technique of (5) and (6) above for the remaining TI settings and
indications listed in table 5.