5. Controllers should turn the cursor and range marks ON by adjusting the
CURSOR INTENSITY and RANGE MARK controls on the Indicator Processor-
6. Controllers should perform the following to check cursor alignment accuracy.
This check ensures the aircraft will land on the runway centerline at the approved
touchdown point, and the check shall be performed on each PAR indicator.
a. On the azimuth display, the controller should observe the Touchdown Range
Mark is coincident with the Touchdown Reflector. Servo left or right if
necessary to verify alignment.
b. On the elevation display, the controller should observe both the Glide path
Cursor and Lower Safe Limit Cursor emanating from the center of (bisecting)
the Touchdown Reflector.
c. On the azimuth display, the controller should observe the Course line Cursor
bisecting the Centerline Reflector (or halfway between the two Bracketing
Reflectors if they are used instead of a Centerline Reflector).
d. On both the azimuth and elevation display, servo the range mark wedges so
the five NMI range mark (the intensified range mark) is over the Glide path
Cursor on elevation and the Centerline Cursor on azimuth.
e. Using the ANGLE VOLTAGE TD-OPERATE-6 NMI Switch, select the 6 NMI
(down) position. The controller should observe the cursor (an intensified one
inch line on the sweep trace) is coincident with the five-mile range mark (an
intensified dot on the sweep trace) on both the azimuth and elevation
IMPROVED PRECISION APPROACH RADAR TRAINER (Device 15G33A)
Improved Precision Approach RADAR Trainer (IPART) is a standalone PAR proficiency
trainer that simulates the appearance and functions of an OJ-333 RADAR scope (see
Figure 5-20). The IPART provides a computer-generated pilot voice and RADAR
responses to the operator while providing a realistic RADAR display including target
returns, ground clutter, weather effects, simulated aircraft, and a site-specific database
of all characteristics affecting PAR operations.