Optus S2 User Manual page 89

FCN 92: ANTENNA CALIBRATE
6
At the conclusion of the circles the handset will display a
calibration score (1-9) as an indication of how sure the
antenna is of optimal steering operation.
Calibration Score
The calibration score is a three digit number in which
• the first digit represents the quality of the calibration,
• the second digit represents an assessment of the distortion
caused by the local magnetic environment,
• the third digit is an incremental counter that keeps track of
the number of calibrations accomplished.
Scores for the calibration quality and distortion factors are 1
(worst) to 9 (best). There is a relationship between the first
and second digits: The higher the first digit's value, the
greater the accuracy of the compass azimuth output. It is
possible to have a high calibration score in the presence of a
high distortion factor score. In general, a second digit value of
5 or lower would suggest that the antenna should be
relocated to a more benign magnetic environment.
To Enter Function
FCN 9 2
To Start Calibration
This starts the calibration procedure. The vehicle/vessel
STO
should begin prescribing it's circles after pressing the
button.
The display shows a countdown timer (starting at four
minutes) to indicate the time left in the current calibration.
The calibration score is also be displayed in this screen.
To STOP the Calibration
(again) Indicates to the antenna that the calibration
STO
procedure has been completed and to assume free tracking
mode.
To Abort Calibration
Exit the FCN 92 screen at any time during the
CLR
calibration. This will stop the calibration procedure.
STO
166
FCN 92: ANTENNA CALIBRATE
6
Unknown Antenna
The antenna is not recognised by the transceiver unit. Refer to
page 168.
(Hold) Return to previous screen.
CLR
167