Gyro Calibration - KVH Industries TracPhone V11IP User Manual

TracPhone V11-IP User's Guide
Maintenance

Gyro Calibration

154
The TracPhone antenna's gyros continuously measure the rate of
vessel motion in three axes and send this data to the antenna's motor
control circuitry to keep the antenna pointed at the satellite. At the
factory, each gyro is precisely calibrated to work with the antenna's
main board. Therefore, if you ever have a sensor module or main
board replaced, you will need to recalibrate.
Important!
Calibrate the gyros only if directed by KVH Technical Support, and
only while the vessel is stationary in calm seas. A poor gyro calibration
can reduce the performance of the antenna.
To calibrate the gyros, follow these steps:
1. At the ICM's front panel, press MENUS until the display
shows "DIAGNOSTIC TOOLS."
2. Press ACCEPT.
3. At "KVH SUPPORT IP," press NEXT.
4. At "CALIBRATE GYROS," press ACCEPT.
5. At "PROCEED WITH CAL?," press ACCEPT.
6. Verify that the azimuth (AZ), elevation (EL), and skew gyros
all pass. If a gyro fails, recalibrate. If it continues to fail, contact
KVH Technical Support (see
Support" on page 137).
7. Once the gyros are calibrated, the antenna restarts.
"Contacting KVH Technical