Selecting The Compass Mode; Gyro Mode; Internal Magnetic Mode; Gyro Fail Mode - KNS SUPERTRACK S4 Installation And Operation Manual

Selecting the Compass Mode

You can select the compass mode according to the condition of your ship's gyro.
The S4 has 4 compass modes. But you can't use 'Gyro Mode', 'Gyro Fail Mode'
if you don't select the encoder option.
a. Gyro Mode
Select the Gyro Mode when using the ship's gyro (only the NMEA type). For the
gyro cable connection, refer to '2.6 Gyro Connection'.
b. Internal Magnetic Mode
If your ship is not made of magnetic metal (ex: aluminum, FRP), you can use the
internal magnetic mode. However, the internal magnetic compass value will be
incorrect if ship is made of metal, because the internal magnetic compass will be
affected by the magnetic field of a metal-based ship.
NOTE: We do not recommend use of the 'Internal Magnetic Mode' on metal ships.
c. Gyro Fail Mode
Use this mode when a gyro compass is not available. The S4 receives the ship's
heading as a reference angle when satellite selection or searching or re-searching
after searching fail. And, the S4 uses the gyro rate sensor value during searching
and tracking.
d. Magnetic Fail Mode
Use this mode when an internal magnetic compass is not available. The S4
receives the internal magnetic compass value as a reference angle when satellite
selection or searching or researching after searching fail. And, the S4 uses the gyro
rate sensor value during searching and tracking.
NOTE: We recommend 'Gyro Mode' to ensure a reliable heading angle. If your ship
does not have an NMEA signal, please contact us. We supply external NMEA
converters (for converting 'synchro' or 'step by step' signals to NMEA signals). This
is optional.
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