Raymarine ST7000, Руководство по установке

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up waypoints, remember that deviations will
occur, and thoroughly check along each track and
to 0.5nm each side to ensure that there are no
hazards within the zone. Always confirm the
position given by the Radio Navigation Receiver
using an easily identifiable fixed object at the start
of a passage to check and enable compensation
to be made for fixed positional errors.
The use of Radio Navigation control will enable
accurate track keeping even in complex
navigational situations. It cannot remove the
responsibility of the skipper to ensure the safety of
his vessel at all times by careful navigation and
frequent position checks.
7. Windvane Control (Sail Only)
Windvane Control allows the ST7000 to maintain
an apparent wind angle, There are two methods of
supplying the ST7000 with wind angle:-
•
Using the NMEA 0183 output from another
manufacturers instrument system and
connecting it to the ST7000 control unit.
Note. The NMEA 0183 output must transmit VWR
(Relative wind bearing).
•
Using an Autohelm ST50 wind instrument
connected using the SeaTalk bus.
The ST7000 uses Wind Trim to eliminate the
effects of turbulence and short term wind
variations and provide smooth precise
performance under windvane with minimum
power consumption. Wind Trim uses the fluxgate
compass as the primary heading reference, and
as changes in the apparent wind angle occur the
compass heading is adjusted to maintain the
original apparent wind angle.
Operating Hints
Wind Trim adjusts the compass course over a
minute period, providing optimum response for
offshore conditions where genuine shifts in wind
direction occur gradually. In gusty and unsteady
inshore conditions it is best to sail a few degrees
further off the wind so that changes in apparent
wind direction can be tolerated.
It is also important to ensure that the amount of
standing helm is minimised by careful sail trim and
positioning of the mainsheet traveller.
It is recommended that the headsail and mainsail
are reefed a little early rather than too late.
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