TM 11-5840-281-12-1
4-28. CIRCUIT ALINEMENT. (CONT)
LOCATION OF TARGET SIMULATORS ON RADAR DISPLAYS (CONT)
7.
Place CURSOR SELECT switch to position 1 or 2.
8.
Place corresponding RUNWAY switch to position L or R, determined by whether radar set is located left or right
of runway, as viewed by pilot of approaching aircraft.
9.
On master control-indicator, place ANT POL switch to LIN position.
WARNING
To prevent exposure to hazardous rf radiation, ensure no personnel are within an 80- foot
(24.5 m) radius of azimuth antenna before performing step 10.
10.
On master pulse generator, place TRANSMITTER switch to WIDE PLS position and press HV ON switch.
NOTE
There is a 3-mlnute time delay after ac power is applied before transmitter will operate.
11.
On control-indicator, rotate INTENSITY control clockwise until operate sweep trace is visible on azimuth display.
Operate sweep trace represents direction of azimuth antenna in azimuth.
12.
If necessary, using ANTENNA switch on master control-indicator, tilt azimuth antenna to obtain better resolution
of target simulators on radar display.
13.
On pulse generator, alternately place ANGLE VOLTS switch In AZ and OPERATE positions.
NOTE
When ANGLE VOLTS switch is placed to AZ position, an artificial sweep trace will appear on
azimuth display. In OPERATE position, operate sweep trace will appear on azimuth display.
By switching back and forth, both sweep traces can be seen at the same time.
14.
On pulse generator, adjust ART ANGLE V control until artificial sweep trace coincides with operate sweep trace.
Record ART ANGLE V control dial indication.
15.
On pulse generator, return ANGLE VOLTS switch to OPERATE position and place SCAN switch
16.
On pulse generator, momentarily place ANGLE VOLTS switch to AZ position and then back to OPERATE.
Target simulator will be found along persisting artificial sweep trace.
NOTE
If target simulator cannot be located as indicated in step 15, place ANGLE VOLTS switch to
AZ position and direct second person to alternately remove and replace target simulator.
The return that appears and disappears is the target reflector.
17.
Repeat steps 1 through 16 to locate all target simulators on the radar display.
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