MAXIMUM SIGNAL PLUS NOISE-TO-NOISE RATIO TEST.

TM 11-5820-670-30

2-8. MAXIMUM SIGNAL PLUS NOISE-TO-NOISE RATlO TEST.

PURPOSE

This test checks the ratio of received audio signal power and noise power when rt is in receive mode.

TEST EQUIPMENT AND MATERIALS

Maintenance Kit MK-1035/ARC-131

Signal Generator AN/URM-103

Signal Generator AN/URM-127

Spectrum Analyzer TS-723A/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.

2-14