???????? lml@lancaironline.net ????? #66616
???: Dan Ballin <dballin@gmail.com>
???: <marv@lancaironline.net>
??: Re: [LML] Re: Compass calibration
??: Mon, 19 Aug 2013 12:40:09 -0400
??: <lml@lancaironline.net>
Not sure if anyone answered the Trutrak question, but yes there is a
magnetic calibration for the trutrak that is in the setup menu and the
manual.  It is used - I believe- as a backup when there is no GPS or
Nav signal and in "track" mode.  If you have any questions call
Trutrak.  They know their equipment and are always helpful.

Dan Ballin
Legacy N386DM

On Sun, Aug 18, 2013 at 7:45 AM, Danny <danny@n107sd.com> wrote:
> I've had the errant output from time to time too.  When I checked my system
> I found a tiny bit of moisture in the lines that had collected at a low
> spot.  After removing the moisture, the error disappeared.  I now check the
> lines periodically.
>
> Danny
> LNC2-360 Mk-II
> Nothing is foolproof to the sufficiently talented fool.
>
> -----Original Message-----
> From: John Barrett [mailto:2thman1@gmail.com]
> Sent: Friday, August 16, 2013 4:24 PM
> To: lml@lancaironline.net
> Subject: [LML] Re: Compass calibration
>
> Speaking of calibration I have been meaning to ask a burning question about
> Tru Trak a/p.  mine is confused about heading.  It is usually 30 degrees or
> more off of actual heading.  Is there a calibration mode for the A/P?
>
> My device not infrequently messages that it wants to shut off and some times
> it does.  At other times it has introduced errant output to the point I have
> to disconnect to avoid making unwanted attitude changes.  A few times I've
> had it not want to let go and I have had to do the equivalent of popping the
> c/b.
>
> It seems to be doing this less and less and maybe the a/p heading is
> gradually getting closer to the Cheltons.
>
> Any thoughts?
>
> John Barrett
>
> Sent from my iPad
>
>
> On Aug 16, 2013, at 11:42 AM, "Dan Schaefer" <dfs155@roadrunner.com> wrote:
>
>> By the way all, be aware that in many parts of the country, the magnetic
> field lines have shifted enough to change runway numbers. my home field
> (KCOE, Coeur d'Alene, Idaho) had to renumber the runways recently - Rnwy
> 1/29 became 2/20 and 5/23 became 6/24. Be sure to check whether the airport
> where you do your calibration has changed recently and if field compass rose
> (if there is one) has been updated to match it or you will mis-calibrate
> your compass.
>>
>> Dan Schaefer
>>
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