HP RC3000 manual Azimuth Software Limits, Fluxgate Offset

RC3000 Antenna Controller Chapter 2 Installation

Example: at +90 degree reference position the azimuth voltage is 3.86. At the –90 degree reference position the azimuth voltage is 1.14. The azimuth scale factor is calculated as:

180 degrees / (3.86 –1.14) = 66.16 degrees / volt.

66.16 would be entered as the scale factor.

STEP 6. Azimuth Software Limits.

The CCW and CW configuration item values 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 (2.1.3) 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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