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RC4000 ACU Boardset
Chapter 4
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STEP 6. Azimuth Software Limits.
The CCW and CW configuration item values found in the AZIMUTH CALIBRATION screen should be set
to reflect the physical limits of azimuth travel. Note that these limits don't physically limit azimuth travel
but are used by software to determine if a calculated pointing solution is outside of the mount's range of
movement. If a calculated pointing solution is beyond these limits the message "AZIM RANGE ERROR"
will be displayed in the LOCATE screen.
STEP 7. Fluxgate Offset.
NOTE: this item defines the difference in orientation (in the azimuth axis) between the fluxgate
compass
(section
4.1.9) and the azimuth reference (displayed 0.0) position. This value should
initially be set to the apparent difference between the compass' and azimuth axis orientations. For
example, if the compass is placed on the vehicle facing forward and the dish actually faces backward, an
azimuth offset of 180 would be entered. It is recommended that the compass be placed facing in the
same direction as the azimuth centerline thus requiring an offset of 0.0.
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