TM 11-5840-281-12-1
4-26.
SITING OF TARGET SIMULATORS. (CONT)
METHOD THREE
TOOLS REQUIRED:
Theodolite or transit
10-foot stadia rod
Measuring tape
PERSONNEL REQUIRED:
Two
Method three uses three target simulators for each runway approach, as in method one. This method requires the use of
a theodolite, or transit, and stadia rod. It is more precise than method one but requires more time to accomplish.
NOTE
Method four should be used if the two target simulators bracketing td point cannot each be positioned at
least 75 feet (22.9 m) from clr, or if there are obstacles that will obscure radar returns from these
simulators.
Read and become familiar with siting procedure in steps 1 through 19 before attempting to site target simulators.
305NE080
1.
Determine clr (1) by measuring width of runway and dividing by two.
2.
Set up theodolite or transit (2) on clr directly opposite radar set group (3).
3.
Direct second person to hold stadia rod (4) in a vertical position on clr 100 feet (30.5 m) or
more toward td (5), facing theodolite.
4.
Site vertical crosshair of theodolite on stadia rod (4). Record azimuth degree Indication at
theodolite reference mark.
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