Reply Evaluation Percentage Tests - TM-11-6625-667-450137

5-9. Reply Evaluation Percentage Tests

a. Test Equipment Required

(1) Test Set, Radar AN/UPM-98.

(2) Generator, Signal AN/URM-64A.

(3) Modulator MD-796.

(4) Multimeter ME-26B/U.

b. Test Connections and Conditions. Connect the equipment as shown in figure 5-7.

c. Procedure.

Performance

Test

Standard

procedure

a. Turn on the AN/URM/64A. Permit this

a. None.

equipment to warm up 1 hours.

b. None.

b. Turn on the AN/UPM-96 and permit a

few minutes warmup.

c. None.

c. Adjust and connect the AN/URM-64A as

follows:

(1) Adjust the ZERO SET control to

zero the meter.

(2) Set the FUNCTION switch to

C W , and adjust the POWER

SET control for 0-dbm meter

indication.

(3) Adjust the SIGNAL FRE-

QUENCY control to 1,090 mc.

a. Turn on the oscilloscope and test set. a. N o n e

Permit a few minutes warmup.

b. Press the test set PRESS-TO-TEST b. N o n e .

switch, and turn to LOCK.

c. Adjust the TRIGGER DELAY COARSE c. None.

AND FINE controls until a solid test

set ACCEPT indication is just obtained.