Sailor 100, Installation Manual

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Configuration with the web interface
6-20 Chapter 6: Configuration 98-136280-B
2. Enter or edit the fields on the screen.
The Coverage input field contains a list of comma separated integers. Each integer
represents and identifies an area on the earth's surface. Earth's surface has been
divided into 128 fields. The field identifier of a given position (e.g. the vessel’s
current position) can be determined given a latitude LAT and longitude LON (it is
assumed that -90° <= LAT <= 90° and that -180° <= LON <= 180):
• First, determine the number B as follows:
If LAT < -30°, then B = 4. Else, if LAT < 0°, then B = 3. Else, if LAT < 30° then B = 2.
Else B = 1.
• The field identifier can now be calculated:
Field identifier = B + 4 * floor(32 * (LON + 180) / 360)
3. C lick Apply to save the settings for the reference satellite.
6.3.6 Azimuth adjustment
Purpose
Azimuth adjustment compensates for minor drift in the heading data received from the
ship's compass. If enabled, the azimuth adjustment is performed immediately before
starting acquiring the signal from the satellite selected in the satellite profile. Azimuth
adjustment may slightly increase acquisition time but will highly reduce the risk of
making acquisition on the wrong satellite.
Changing the setting for azimuth adjustment (default on)
Azimuth adjustment is enabled per default. To change the azimuth adjustment setting,
do as follows:
1. Go to the SERVICE > Calibration page.
2. Select or clear the check box Enable .
3. Click Apply .
Figure 6-15: Web interface: SERVICE, Calibration: Azimuth adjustment
Note
It is strongly recommended to have Azimuth adjustment enabled.
SAILOR100IM.book Page 20 Friday, January 18, 2013 10:28 AM