I have a RAM mike, Nexus display and a GPS mounted near the binnacle compass.
The magnet in the speaker causes a 5-7 degree deviation in the compass. I have
an alternate mike clip on a bulkhead below the pedestal when I want to
eliminate the error.
The Nexus and GPS don't seem to have much effect on the compass.
Dennis C.
>________________________________
> From: Steve Thomas <sthom...@sympatico.ca>
>To: cnc-list@cnc-list.com
>Sent: Friday, January 25, 2013 7:49 AM
>Subject: Re: Stus-List Mounting chartplotter now Compass Deviation
>
>
>
>I have
found 2 small electronic items that had a powerful influence on the compass
- a hand held radio and a cell phone. The effect was particularly bad
when clipped on to a binoculars holder mounted in front of the
binnacle. That binoculars holder has held all kinds of things that affected the
compass and I am more careful with what I put in there now. Screwdrivers,
rigging knives, spare or spent AA cells, pliers, - all had measurable effect
and
are now banned. Aluminum beer cans don't seem to be a problem and they fit
nicely.
>
>I agree with
all the comments about not worrying too much about your chart plotter, so long
as you take a thoughtful approach to the power leads and test
your set up.
>
>-----Original Message-----
>From: CnC-List
[mailto:cnc-list-boun...@cnc-list.com]On Behalf Of Chris
Ford
>Sent: Friday, January 25, 2013 8:39 AM
>To: cnc-list@cnc-list.com
>Subject: Re: Stus-List Mounting chartplotter
near magnetic compass (ChrisFord)
>
>
>Thanks all for your ideas on this one; your input will help me find
a work-around. I guess the manufacturers' guidance is there for a reason,
even if the reason is CYA! - Chris
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