TB 9-6625-1098-35
Test Instrument
Electronic
filter cut-off
Calibrator
RANGE
dial
frequencies
frequencies
switch settings
settings
(kHz)
(kHz)
X100
50
5
5
X1K
50
50
50
X10K
10
95
951
1Total
change will be at least 70 dB below indication recorded in (4) above.
b. Adjustments. No adjustments can be made.
a. Performance Check
(1) Connect equipment as shown in figure 4.
(2) Repeat 17 a (2) and (4) through (5) above.
(3) Adjust SENSITIVITY and VERNIER controls for a 0 dB indication on TI
meter. Record spectrum analyzer 500 Hz signal amplitude (as reference).
(4) Repeat 17 a (7) and (8) above.
(5) Add dB readings of METER RANGE switch and spectrum analyzer signal
amplitude. Total dB change will be greater than 80 dB below indication recorded in
(3) above.
CHANGE 1 17
