TB 9-6625-1213-24
(2) Adjust function/arbitrary generator output to minimum and repeat a (2) through
(7) above.
10. Distortion
a. Performance Check
(1) Connect equipment as shown in figure 2.
indication on audio analyzer.
(3) Measure and record distortion. Distortion will be less than 1 percent.
Figure 2. Distortion Check - equipment setup.
(4) Repeat (2) and (3) above far frequencies of 50 Hz, 1 kHz, and 100 kHz.
b.
Adjustments. No adjustments can be made.
11. Noise
a. Performance Check
(1) Disconnect function/arbitrary generator from TI INPUT.
(2) Short TI INPUT. Set GAIN switch to 40 dB.
(3) Measure TI OUTPUT noise level with audio analyzer voltmeter function. Audio
analyzer will indicate less than 4 mV (40 V referred to input).
(4) Set GAIN switch to 20 dB. Audio analyzer will indicate less than 2.5 mV (250
V referred to input).
b. Adjustments. No adjustments can be made.