TB 9-6625-2094-24
a. Performance Check
(1) Position controls as listed in (a) through (f) below:
(a)
MODULATION MODE switch to AM.
(b)
MODULATION FREQ switch to 1 KHz.
(c)
MODULATION FM/AM slide control to 0 percent.
(d)
OUTPUT step attenuator switch for 0 dBm.
(e)
OUTPUT VERNIER control for -7 dB.
(f)
(2) Set measuring receiver to measure AM.
(3) Adjust TI MODULATION FM/AM slide control to indicate 70 percent AM on
measuring receiver.
(4) Set measuring receiver to measure modulation distortion.
(5) The measuring receiver will indicate less than 3 percent AM distortion.
(6) Set measuring receiver to measure AM.
(7) Adjust TI MODULATION FM/AM slide control to indicate 90 percent AM on
measuring receiver.
(8) Set measuring receiver to measure modulation distortion.
(9) The measuring receiver will indicate less than 5 percent AM distortion.
b. Adjustments. No adjustments can be made.
15. Frequency Modulation Accuracy
a. Performance Check
NOTE
If necessary, ZERO and CALIBRATE measuring receiver and
sensor module.
(1) Connect measuring receiver sensor module to the TI RF OUTPUT.
(2) Position controls as listed in (a) through (g) below:
(b) FREQUENCY switches to indicate 050.000 MHz.