Re: Raymarine Tiller pilot linking to GPS


"Rich" <richard.bird2@xxxxxxxxxxxxxx> wrote in message
news:agbed2lp46vhtr6qh5ubgjmo6956gfjiks@xxxxxxxxxx
Raymarine st 1000
I have this auto pilot and dont use it very often. Generally put it on
and click it until its going where I want to go
However I have been checking its reading and its always about 10' out
from the GPS course.
Mt main compass also reads different and so does my handbearing
compass. ie 4 compasses but all giving differnt readings.
Is there any way that the tillerpilot can be linked to the Magellan
148 GPS?
Why are the readings out on the compasses - the one tat does seem most
accurate is the GPS
Cheers
Rich
Westerly 2219 DAVICO

Remember your compass only tells you where the shipshead is pointing at that
moment, the GPS will tell you your track over the ground, the difference
will be made up of several components, tidal set, leeway, compass error etc.

I can remember using high quality gyro compasses and inertial navigation
systems and there was almost always a difference between compass ships head
and IN heading.

Peter


.

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