TB 9-6625-2317-40
12. AM Accuracy and Distortion
a. Performance Check
(1) On measuring receiver, calibrate AM and FM functions.
(2) Connect equipment as shown in figure 5, CONNECTION A.
Figure 5. AM Accuracy.
(3) Press TI pushbuttons (on) as indicated in (a) through (h) below:
(a) CARR FREQ then 1, 2, . (decimal), 5 MHz.
(b) LEVEL DISPLAY to AM.
(c) LEVEL UNITS to ABS.
(d) LEVEL DETECTOR MODE to + PEAK.
(e) HIGH PASS FILTER to 50 Hz.
(f) LOW PASS FILTER to 15 kHz.
(g) FREQ DISP to RF.
(h) Data keyboard, press #, 0, 7 to perform self-calibration of AM and FM (this
requires approximately 20 seconds).
(4) On audio analyzer, press pushbuttons as indicated in (a) through (d) below: