TB 9-6625-2340-35
25. First LO Output Amplitude
a. Performance Check
(1) Connect sensor module (11792A) to measuring receiver CALIBRATION RF
POWER OUTPUT.
(2)
Zero and cal the sensor module.
(3) Disconnect sensor module (11792A) from measuring receiver CALIBRATION
RF POWER OUTPUT.
(4)
Press TI keys as listed in (a) through (d) below:
(a)
2-22 GHz.
(b)
START FREQ, 2.3, GHz.
(c)
STOP FREQ, 6.0, GHz.
(d)
SWEEP SINGLE
(5) Remove termination from TI 1st LO OUTPUT.
(6) Connect sensor module (11792A) to TI 1st LO OUTPUT.
(7) Set up measuring receiver to measure RF power.
(8) Press TI SWEEP TIME, 100, and SEC keys.
(9) Press TI SWEEP SINGLE key and observe measuring receiver indications as
TI sweeps from 2.3 to 6.0 GHz. The measuring receiver indication should be >+5 dBm
across the full sweep.
(10) Disconnect sensor module (11792A) from TI 1st LO OUTPUT.
(11) Reinstall termination to TI 1st LO OUTPUT.
26. Sweep and Tune Out Accuracy
a. Performance Check
(1) Connect TI SWEEP + TUNE OUT (rear panel) to multimeter INPUT.
(2) Set up multimeter to measure V dc.
(3) Press TI keys as listed in (a) through (c) below:
(a) 2-22 GHz.
(b) FREQUENCY SPAN, 0, Hz.
(c) CENTER FREQUENCY, 0, Hz.
(4) The reading indicated on multimeter will be within limits specified in the first
row of table 55.
(5) Repeat technique of (3) (c) and (4) above for remaining frequencies listed in
