2019-09-23, 05:41 PM
(2019-09-23, 02:45 PM)ottow Wrote:(2019-09-23, 02:04 PM)ironman Wrote: Hey Otto,
I did not get your picture, but I did the exercise myself with a raymarine st2000. I put the IMU on one end and the motor controller on the other end and have not experieced any interference so far. After all, these vendor's do the same thing themselves, don't they.
I documented my conversion in this thread. It's a lot of work to make it fit in!
Cheers,
Hi,
Picture here: http://guldburken.gote.org/maxi999/Autohelm_2000.png
And I've seen your conversion, pretty impressive but you have a lot more separation to work with I think.
But I agree the manufacturers do this themselves, and in my case the compass+the motor controller is indeed inside that box. But this old Autohelm 2000 system is all analogue, so perhaps that makes some kind of difference.
Oh sorry I thought autohelm 2000 was similar to the raymarine 2000, please disregard. Within the distance of that size box I would be concerned about magnetic interference myself.
I think the whole idea of a separate motor controller and compass unit is that the motor controller can be put as close to the motor, to reduce radio interference (AIS/Radio), and the IMU to be put away far from magnetic disturbance. The motor signal is PWM, which is bad with radio; better keep those leads as short as possible.