OPERATIONAL PERFORMANCE TEST PROCEDURE (Cont)

TM 11-5805-451-15

TABLE 5-3. OPERATIONAL PERFORMANCE TEST PROCEDURE (Cont)

PROBABLE

TEST

OPERATION

NORMAL

CAUSE OF

INDICATION

TROUBLE

LEVEL CHECKS 2 AND 3 DIRECTION (Cont)

dB loss of AT7

Faulty hybrid Al

-20 dBm less the

e. Measure level at

Faulty attenuator

dB loss of AT6

Faulty hybrid Al

f. For 3 direction only,

measure level at

-20 dBm less the

Faulty attenuator

g. For 3 direction only,

dB loss of AT9

measure level at

h. Remove oscillator and re-

terminate TB6-1 & 2.

apply l&Hz test tone at

-5 dBm to TB1-7,8.

Faulty hybrid Al

b. Measure level at

c. Remove test oscillator

at -5 dBm to TB1-5,6.

Faulty hybrid Al

5-5