TracPhone V3-IP User’s Guide
125
Maintenance
Gyro Calibration
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 gyro or main board
replaced, you will need to recalibrate.
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
“Technical Support” on page 110
).
7.
Once the gyros are calibrated, the antenna restarts.
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.