Raymarine 150/400 - Manual (Page 26)

18 Type 150/400 Autopilot System: Installation Guide
Ste
p
4
4.1 Select the location
The compass is primarily designed for mounting below deck on a
bulkhead. On steel-hulled boats you must mount it above deck.
Standard location
To achieve the best performance from the compass, mount it:
• as near as possible to the boat’s pitch and roll center to minimize
compass disturbance
• at least 0.8 m (2 ft 6 in) away from the boat’s steering compass to
prevent deviation of either compass
• away from the front third of the boat (otherwise shock motion will
affect compass performance)
• away from potential sources of magnetic interference, such as:
motors, drive units, loudspeakers, alternators/starters, electric
cables, large ferrous objects (such as engines, ballast, keel, gas
bottles and tool boxes)
Note: Because you align the compass after installation (see the
control unit handbook), you can mount it so it faces in any direction.
Compass - recommended location for non-steel hulls
0.3L to 0.5L
L
0.3L to 0.5L
L
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81173_3.book Page 18 Thursday, June 7, 2001 11:51 AM