Transmitter Power Test

5.2-4. Transmitter Power Test

a. Test Equipment Required

b. Test Connections and Conditions.

(1) Connect the equipment as indicated in c below.

(2) Connect test point A4TP5 to ground (module A4 at the rear of test set.

c. Procedure.

Control settings

Equipment under test

I Performance standard

Test procedure

Test equipment

Step

INone.

MODE: 1.

None

N/A

Code Any.

FUNCTION: SYSTEM

POWER ON.

ISLS: OFF

CAUTION

The test equipment settings

Controls remain as in step 1.

TS 779A/U

must be performed before the

BOLO BIAS CURRENT OFF.

MX-2144A/U, is connected to

BOLO

avoid equipment damage.

RES:200.

a Connect the MX-2144A/U to the a. None.

B O L O TEMP COEF: NEG.

TS 779A/U.

RANGE:

b. None.

b. Adjust the TS 779A/U as

0 DBM.

follows: (1) Set the BOLO BIAS

CURRENT switch to 10-16 MA. I

(2) Set the LINE POWER

switch to ON, and permit a

15-minute warmup. -

(3) Adjust the ZER0 SET

COARSE AND FINE

controls to zero meter.

c. Connect the equipment as shown c. None.

in figure 5-2. Make sure that test

point A4TP5 is grounded.

d. Connect the MX-2144A/U to d. -61 dbm.

the test set PROBE jack. Ob

serve the power indication.

e. Disconnect the ground from e. None.

test point A4TP5, and connect

test point A4TP4 to ground.

Disconnect the MX-2144A/U.