Norsat International Inc. NSLK3200 ユーザーズマニュアル
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099-20003-01OM
Page 89
Appendix B
Compass Calibration
To calibrate the compass, the antenna must be rotated slowly for one com-
plete turn; two turns on initial calibration. The following steps describe the cal-
ibration procedure:
plete turn; two turns on initial calibration. The following steps describe the cal-
ibration procedure:
1.
Set-up the Antenna/RF unit.
2.
Connect the Antenna/RF unit to the Baseband/IF unit.
3.
Power up the Baseband/IF unit.
4.
Remove all three azimuth clamping handwheels/levers so that the top
plate of the tripod rotates freely.
plate of the tripod rotates freely.
5.
Put the antenna in the lowest elevation possible so that the jack screw
clears the legs.
clears the legs.
N
OTE
Verify this can be done, otherwise remove the jack screw.
6.
Turn on the compass, and note the initial bearing.
7.
Rotate the antenna through two complete revolutions. Each rotation
should take at least two minutes; i.e. slow and steady.
should take at least two minutes; i.e. slow and steady.
8.
When the rotations are complete, depress and hold both the
M
ODE
and
S
ET
buttons until
CAL
appears.
9.
A three digit number (ABC) will appear which indicates the quality of the
calibration:
calibration:
i.
A: indicates the quality of the calibration, with 9 being highest, and 7
being the minimum acceptable level.
being the minimum acceptable level.
ii.
B: indicates quality of magnetic location, with 9 being the highest and
three or lower being very poor.
three or lower being very poor.
iii. C: indicates the number of calibrations completed.
10. To exit calibration mode, depress the
M
ODE
button briefly.