TM 11-5840-281-12-1
3-4. OPERATIONAL CHECK. (CONT)
ACTION
RESULT
7. On transmitter control
WIDE section of indicator lights.
panel, press WIDE section
of PULSE SELECT WIDE-NAR
switch.
8. Use ANT SERVO control on
None.
local control monitor
to tilt azimuth antenna
up to Its limit.
WARNING
To prevent exposure to hazardous rf radiation, make sure no personnel are
within an 80-foot (24.5-m) radius of radar site when performing steps 9 and 10.
9. On transmitter control
HV ON section of indicator illuminates.
panel, press HV ON section
of HV ON-HV READY indicator
switch.
10. On local control monitor,
a. POWER SUPPLY VOLTS meter Indicates 3.4 + 0.4 kv.
place POWER SUPPLY (KILO-
b. POWER SUPPLY CURRENT meter Indicates 260 + 50 ma.
VOLTS) - FILAMENT(VOLTS)
c. MAGNETRON CURRENT meter indicates 27.5 5.5 ma.
switch to POWER SUPPLY
If any of the above results are Incorrect, refer to higher
(KILOVOLTS) position.
category of maintenance.
11. On transmitter control
a. HV ON section of Indicator will extinguish and HV READY
panel, press HV OFF
section will light. If incorrect result is obtained, see
indicator switch.
b. POWER SUPPLY VOLTS, POWER SUPPLY CURRENT, and
MAGNETRON CURRENT meters indicate zero. If incor-
rect result is obtained, refer to higher category of
maintenance.
12. On transmitter control
NAR section of indicator will illuminate and WIDE section
panel, press NAR section
will extinguish. If incorrect result is obtained, see para-
of PULSE SELECT WIDE-NAR
indicator switch.
WARNING
To prevent exposure to hazardous rf radiation, make sure no personnel are
within an 80-foot (24.5 m) radius of radar site when performing steps 13 and 14.
3-13
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