TM 11-5840-281-12-1
4-47.
PERFORMANCE TESTS. (CONT)
CONTROL SETTINGS
TEST PROCEDURE
INDICATION
Place MONITOR switch to
Use ANT SERVO control and
MONITOR meter and multi-
meter indicate - 28 0.5
+ 25 AZ TILT position.
tilt azimuth antenna to its
Set up multimeter to read
upper limit of + 25 degrees.
vdc. If indications are incor-
- 30 vdc.
rect, refer to higher category
of maintenance.
Place MONITOR switch to
Use ANT SERVO control and
MONITOR meter and multi-
meter indicate -1 0.5
- 15 EL SERVO position.
servo elevation antenna to
Set up multimeter to measure
- 15 degree limit as indi-
vdc. If indications are incor-
- 5 vdc.
cated on elevation servo
rect, refer to higher category
protractor.
of maintenance.
Place MONITOR switch to
Use ANT SERVO control and
MONITOR meter and multi-
meter indicate - 22 0.5
+ 15 EL SERVO position.
servo elevation antenna to
Set up multimeter to measure
+ 15 degree limit as indi-
vdc. If indications are incor-
- 25 vdc.
cated on elevation servo
rect, refer to higher category
protractor.
of maintenance.
Place SCAN MODE switch on
Manually position elevation
MONITOR meter and multi-
meter indicate - 1.5 0.5
local control monitor to
antenna to bottom dead
35 EL position and place
center of its scan.
vdc. If indications are incor-
MONITOR switch to 110 EL
rect, refer to higher category
ANGLE DATA position. Set up
of maintenance.
multimeter to measure
- 5 vdc.
Place MONITOR switch to
Manually position elevation
MONITOR meter and multi-
meter indicate - 9 0.5
+ 35 ANGLE DATA position.
antenna to - 1 degree as
Set up multimeter to measure
indicated on clinometer.
vdc. If indications are incor-
- 10 vdc.
rect, refer to higher category
of maintenance.
Set up multimeter to measure
Manually position elevation
MONITOR meter and multi-
meter indicate 23.5 0.5
25 vdc.
antenna to + 35 degrees as
indicated on clinometer.
vdc. If indications are incor-
rect, refer to higher category
of maintenance.
Place SCAN MODE switch on
Manually rotate azimuth
MONITOR meter and multi-
local control monitor to
antenna to - 15 degrees
meter indicate - 9 vdc. If
NORM position and MONITOR
as indicated on azimuth
indications observed are in-
switch to 30 AZ ANGLE
scan protractor.
correct, refer to higher cate-
DATA position. Set up multi-
gory of maintenance.
meter to measure - 10 vdc.
4-147
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