Chapter 1: Introduction
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In
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Chapter 1: Introduction
1.1 System overview
The Pathfinder Smart Heading System is designed to provide a fast,
accurate heading output that is suitable for the MARPA and radar/chart
overlay features on Pathfinder Plus radars and chartplotters.
It is designed to operate as part of an integrated Raymarine system,
and can be calibrated using a Raymarine Pathfinder Plus display or a
Raymarine autopilot control unit.
The heading output is provided as an HDM sentence on NMEA 0183,
updated ten times per second. It is accurate to +/-2° and has a resolution
of 0.1°.
Note:
For more information, refer to the Specifications on page 32.
As shown in the following diagram, the Smart Heading System consists
of two components:
•
a fluxgate compass
and
•
a GyroPlus 2 unit
Fluxgate
compass
NMEA fast heading
Compass
heading signal
SeaTalk
Power*
(* if not supplied
using SeaTalk)
Rate
data*
(* if required)
Smart Heading System
D5913-1
GyroPlus 2 unit
81198_1.book Page 1 Monday, February 11, 2002 8:36 AM
