TB 9-4931-321-35
(10) Adjust amplitude of function/arbitrary generator for a 0 (zero) dB indication on
TI meter.
(11) Function/arbitrary generator output amplitude will not exceed 1 V rms.
(12) Adjust FREQ control fully clockwise and function/arbitrary generator frequency
for peak indication on TI meter. Adjust function/arbitrary generator amplitude as necessary.
(13) Adjust function/arbitrary generator output amplitude to 1.0 V and adjust GAIN
controls for a 0 (zero) dB indication on TI meter.
NOTE
Strap LOW and GRD terminals on resistance standard.
(14) Disconnect function/arbitrary generator. Set resistance standard to 5000 ohms
and connect to TI INPUT.
(15) Set RANGE-DB switch to 60.
(16) Average noise level will be at least 7.5 dB down from 0 (zero) on TI meter 0
(zero) to 10 dB scale.
(17) Set RANGE-DB switch to 0 (zero) and INPUT (INPUT SELECTOR) switch to LOW.
(18) Adjust function/arbitrary generator output amplitude for 0.15 V rms.
(19) Disconnect resistance standard and reconnect function/arbitrary generator to
INPUT. Adjust GAIN control as required.
GAIN control for a 0 (zero) dB indication on TI meter.
(21) Disconnect function/arbitrary generator. Set resistance standard to 100 ohms
and connect to INPUT.
(22) Set RANGE-DB switch to 60 and repeat (16) above.
(23) Set RANGE-DB switch to 0 (zero).
b. Adjustments. No adjustments can be made.
10. Input Frequency
a. Performance Check
(1) Connect function/arbitrary generator to TI INPUT using 50 Ω termination.
(2) Set EXPAND switch to 0 (zero) and turn GAIN and FREQ controls
fully clockwise.
(3) Adjust function/arbitrary generator output amplitude for on-scale indication on
meter. Readjust function/arbitrary generator output amplitude to obtain a 0 (zero) dB
indication on TI meter 0 (zero) to 2 dB scale. Function/arbitrary generator frequency
display will indicate 1020 Hz or more. Record function/arbitrary generator
frequency indication.
(4) Turn FREQ control fully counterclockwise.
