TM 11-5840-281-12-1
4-47.
PERFORMANCE TESTS. (CONT)
CONTROL SETTINGS
TEST PROCEDURE
INDICATION
Place SCAN MODE switch on
Manually position azimuth
MONITOR meter and multi-
local control monitor to
antenna to - 15 degrees as
meter indicate O vdc. If indi-
60 position and place
indicated on azimuth scan
cations are incorrect, refer to
MONITOR switch to 60 AZ
protractor.
higher category of
ANGLE VOLTS position. Set up
maintenance.
multimeter to read + 18 vdc.
Same as above.
Manually rotate azimuth
MONITOR meter and multi-
meter indicate + 18 0.5
antenna counterclockwise
to + 45 degrees as indicated
vdc. If indications are incor-
on azimuth scan protractor.
rect, refer to higher category
of maintenance.
ELECTRONIC FILTERS PERFORMANCE TEST
TEST EQUIPMENT REQUIRED:
MultimeterTS-352 B/U orAN/USM-223.
TEST CONDITIONS: Radar set turned on, Preliminary Control Settings (para 2-4), Clino-
meter installed on elevation antenna clinometer mount (para 4-21).
CONTROL SETTINGS
TEST PROCEDURE
INDICATION
On local control monitor,
Manually position elevation
Multimeter indication of
place LOCAL/REMOTE switch
antenna to - 1 degree as in-
0 vdc. If indication Is Incor-
to RT position and place
dicated on clinometer. On
rect, see paragraph 4-42.
SCAN MODE switch to NORM
elevation electronic filter,
position. Set up multimeter
connect negative lead of
to measure any positive
multimeter to GND J701 and
voltage.
connect positive lead to
ANGLE VOLTS J703.
4-149
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