Seiwa SW AP01 - Manual (Page 11)

performance and the fact that it has been magnetically compensated. Alternatively, this
autopilot may take its heading in digital form from a ship’s gyro or
other electronic heading sensor. The autopilot has built-in facilities for automatic or manual
compass calibration.
When connected into an NMEA data system, the autopilot can receive navigation data, as
mentioned above or wind direction data. Some of this data, which is not used for autopilot
operation, is displayed on the autopilot screen for convenience. The autopilot generates
output data containing the current heading, which can be fed into an instrument or radar
system.
Autopilots intended for yacht use have an automatic tacking feature which is useful for
single-handed sailing.
A second control head may be fitted to the autopilot to provide parallel operation from two
stations.
1.1.5 WORKING WITH OTHER EQUIPMENT
The physical and electrical environment in a boat can be harsh. This autopilot has been
engineered with this in mind and tolerates poorly regulated power supplies, overloaded
steering, radio transmitters, radars and the like. Conversely, it has also been engineered to
operate without causing interference to radio receivers and other communications
equipment. Seiwa autopilots carry a CE mark to indicate compliance with the relevant EMC
standards. The installation sections of this manual have been carefully developed to
minimise problems when the autopilot is in this environment. Please study and follow them!
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