Table of Contents
Advertisement
PRIMUSr 880 Digital Weather Radar System
PITCH OFFSET ADJUSTMENT
This in- flight adjustment in made in straight and level flight when the
ground returns do not follow the contours of the radar display range
arcs. The procedure is listed in table 5- 8.
Step
1
If two controllers are installed, one must be turned off.
If an indicator is used, the procedure is the same as
given below.
2
Fly to an altitude of 10,000 feet AGL or greater.
3
Set range to 25 NM.
4
Adjust the tilt down until a solid band of ground returns
are shown on the screen. Then adjust the tilt until the
green region of the ground returns start at about 20
NM.
5
Select RCT OFF.
6
Select STAB (STB) 4 times within 3 seconds. The roll
offset display is shown.
7
From the roll offset entry menu, push the STAB (STB)
button once more to bring up the pitch offset entry
menu.
8
To change the pitch offset value, pull out the GAIN
knob and rotate it. The offset range is from - 2.0°to
+2.0° .
9
When flying straight and level, adjust so the contour of
the ground returns follow the contour of the range arcs
as closely as possible.
10
When change is completed, push in the GAIN knob.
The display returns to the previous message.
11
Push the STAB (STB) button to go to the next menu
(roll gain).
Pitch Offset Adjustment Procedure
Radar Facts
5-28
Procedure
Table 5- 8
A28- 1146- 102- 00
Hide quick links:
Advertisement
Table of Contents
