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WX-950
Installation Manual
3-7
Rev. C
m.
Observe the display to ensure the proper positioning of the test strikes, based on range and
azimuth settings on the WX-PA. The strikes should be within 10 degrees of the selected azimuth
and should plot at 60 nmi (½ 120 nmi).
NOTE
THE WX
-
PA IS USED ONLY TO CHECK SYSTEM FUNCTIONS
.
IT IS NOT CONSIDERED A
CALIBRATION STANDARD
.
n.
After testing for all ranges and bearings indicated, press 2ND, then MENU/ENTER to return to
the Main Menu.
14. To check range and azimuth plotting accuracy set up the WX-PA to simulate a series of strikes at 30
degree increments at WX-PA ranges of 120, 55, and 15 nmi:
a.
Select Circular Pattern mode on the WX-PA Mode Menu and press MENU/ENTR.
b.
Select a top mount or a bottom mount antenna configuration on the WX-PA keyboard (“ A” key),
as appropriate.
NOTE
The WX-950 display should be set at 100 nmi on the 360 degree weather screen
and in strike display mode.
c.
Use the F1 and F2 keys to select a 120 nmi range and press "MENU/ENTR" to start the test.
The system should plot discharge points at approximately 60 nmi.
d.
Observe the display to ensure the proper positioning of the test strikes. The strikes should be
within 10 degrees of the 30 degree azimuth increment and within 12 nautical miles (20%) of 60
nmi.
NOTE
THE WX
-
PA IS USED ONLY TO CHECK SYSTEM FUNCTIONS
.
IT IS NOT CONSIDERED A
CALIBRATION STANDARD
.
e.
When complete, set the WX-PA for 55 nmi, set the WX-950 display for 50 nmi and repeat the
test.
1)
The System should plot points just outside of the 25 nmi ring.
2)
The strikes should be within 10 degrees of the 30 degree azimuth increment and within 5
nmi of 27.5 nmi.
f.
Repeat, setting the WX-950 display for 25 nmi and the WX-PA for 15 nmi.
g.
Again, observe the display to ensure the proper positioning of the test strikes within 10 degrees
of azimuth and within 2 nmi of 7.5 nmi.
15. To test the synchro functions:
a.
Set the WX-950 range to 200 nmi, and use the WX-PA (at any desired range and bearing) to plot
continuous discharge points on the CRT.
NOTE
During continuous output mode, the strike counter should read between 560 and 600.
b.
With the compass system turned on, physically turn the aircraft 45° to the right (or manually
slew the compass clockwise), and verify that the previously plotted discharge points move 45°
counterclockwise.
16. Test for electrical noise and interference by running the noise monitor and strike test as detailed in
paragraph 4.4.4. The noise monitor is accessed from the SERVICE MENU (refer to paragraph 4.4).
Содержание Stormscope Series II
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