LOCAL OSCILLATOR ALINEMENT.

TM 11-5820-670-30

2-36. LOCAL OSCILLATOR ALINEMENT.

TEST EQUIPMENT AND MATERIALS

Maintenance Kit MK-1035/ARC-131

Power Supply PP-2953/U

Frequency Meter AN/USM-207

T-Connector

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.

EL1AT247

ALINEMENT PROCEDURE

1. Set control unit mode switch to T/R.

2. When RT-823/ARC-131 is on a frequency range of 30.00 to 52.95 MHz, frequency counter will

read that frequency plus 11.5 MHz. When RT-823/ARC-131 is on a frequency range from 53.00

to 75.95 MHz, the frequency counter will read that frequency minus 11.5 MHz. See the following

table.

2-146