TB 9-6625-2043-35
(8) Set synthesized signal generator output ON and adjust Level Control for a -
1 dBm indication on power meter. TI meter will indicate between -1.41 and -0.59 dBm.
Record TI indication.
(9) Reverse connection of power meter thermistor mount and TI power detectors at
power splitter and repeat (3) through (8) above. Average of two values will be within
limits specified.
(10) Repeat (2) through (9) above at 5 and 1 GHz. TI meter will indicate
between -1.31 and -0.69 (-1.21 and -0.79 dBm), respectively.
b. Adjustments. No adjustments can be made.
a. Performance Check
NOTE
Do not perform chopper frequency checks if all other
parameters are within tolerance.
(1) Connect negative edge of frequency counter to RECORDER connector on rear
(2) Connect TI power detector to function/arbitrary generator Output.
(3) Zero TI meter as described in paragraph 7 h above.
(4) Set FULL SCALE switch to -30 dBm.
(5) Adjust function/arbitrary generator output for a 30 dBm indication on TI meter.
(6) Set frequency counter to measure period. If frequency counter does not indicate
between 10.50 and 10.80 ms, perform b below.
counter (R).
16. Low Voltage Power Supply
NOTE
Do not perform power supply check if all other parameters are
within tolerance.
a. Performance Check
(1) Connect negative side of multimeter to - (negative) RECORDER connector on
rear panel, and positive side of multimeter to -15 V TP (fig. 1 or 2). If multimeter does not
indicate between -14.9 and - 15.1 V dc, perform b (1) below.
(2) Connect positive test lead to +15 V TP (fig. 1 or 2). If multimeter does not
indicate between +14.9 and +15.1 V dc, perform b (2) below.
b. Adjustments
(1) Adjust R143 (fig. 1 or 2) for a -15.0 V dc indication on multimeter (R).
(2) Adjust R140 (fig. 1 or 2) for a +15.0 V dc indication on multimeter (R).
