Honeywell SPZ-8000 - 870 Weather Radar System

SPZ--8000 Digital Integrated Flight Control System
A28--1146--055
REV 2
PRIMUS
R
870 Weather Radar
C--16
In--Flight Roll Compensation Adjustment of the
PRIMUS
r
rr
r
870 Weather Radar System
Table C--4 describes in--flight roll compensation adjustment procedure
for the PRIMUS
r
870 Weather Radar platform.
Step
Procedure
1 If two controllers are installed, one must be turned off. If
an indicator is used as the controller, the procedure is the
same as given below.
2 Fly to an altitude of 10,000 ft. AGL or greater .
3 Set range to 25 NM.
4 Adjust the tilt down until a solid band of ground clutter is
visible on the screen.
5 On the weather controller, select variable gain (pull), WX,
and REACT OFF. VAR appears on the display.
6 Push RCT 4 times within 3 seconds. VAR should turn off.
The radar unit is in the roll compensation mode.
7 Push the RCT button and verify that VAR does not appear
on the display. If it does, repeat step 6.
8 Adjust the GAIN control until the ground clutter display is
symmetrical. Once the symmetrical image is displayed, do
not
touch the GAIN control.
9 Push RCT 4 times within 3 seconds to exit the roll
compensation mode. When VAR is displayed again, the
roll compensation mode has been exited. Set variable or
preset GAIN as required.
NOTE: Once set, the roll compensation is stored in nonvolatile memory
in the RTA. It is not erased when the system is powered down.
In--Flight Roll Offset Adjustment Procedure
Table C- -4