TRANSMITTER DISTORTION NARROW BAND TEST.

TM 11-5820-670-30

2-14. TRANSMITTER DISTORTION NARROW BAND TEST.

PURPOSE

Distortion will ruin the quality of an audio signal and must, therefore, be kept at the lowest possible

level. This test measures the percentage of distortion in the signal transmitted by the rt.

TEST EQUIPMENT AND MATERIALS

Maintenance Kit MK-1035/ARC-131

Signal Generator AN/URM-127

Spectrum Analyzer TS-723A/U

Modulation Meter ME-57/U

Electronic Voltmeter ME-30(E)/U

Power Supply PP-2953/U

All cables are part of MK-1035/ARC

TEST SETUP

Connect equipment as shown in test setup diagram. Turn on all equipment and allow at least 5 minutes

for warmup.

EL1AT150

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