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19-06-2011, 13:37
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#1
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Registered User
Join Date: Sep 2010
Location: St Lucia
Boat: Trident Warrior 35
Posts: 62
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Chartplotter shows the boat as going backwards
Hi,
If you were to believe our chart plotter we crossed the Atlantic backwards, the icon for the boat in 180 deg off and the autohelm mag compass is also 180 deg off. I am sure we did the crossing with the pointly end going forward. humm
No idea how this happened, i know this will sound like 'the dog ate my homework' when is just happened one day. Maybe i should get Mulder and Scully onto this mystry.
Our model of chart plotter is Raymarine RL80C with a ST6001 autohelm interface.
Does any one know how to reverse this?
many thanks
Jarvis
http://crocbones.blogspot.com
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19-06-2011, 13:42
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#2
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Long Range Cruiser
Join Date: Dec 2007
Location: Australian living on "Sea Life" currently in England.
Boat: Beneteau 393 "Sea Life"
Posts: 12,822
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Re: Chartplotter shows the boat as going backwards
Quote:
Originally Posted by crazyhorse77
Does any one know how to reverse this?
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Go the other way.
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19-06-2011, 13:42
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#3
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always in motion is the future
Join Date: Feb 2009
Location: in paradise
Boat: Sundeer 64
Posts: 18,858
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Re: Chartplotter shows the boat as going backwards
Quote:
Originally Posted by crazyhorse77
Hi,
If you were to believe our chart plotter we crossed the Atlantic backwards, the icon for the boat in 180 deg off and the autohelm mag compass is also 180 deg off. I am sure we did the crossing with the pointly end going forward. humm
No idea how this happened, i know this will sound like 'the dog ate my homework' when is just happened one day. Maybe i should get Mulder and Scully onto this mystry.
Our model of chart plotter is Raymarine RL80C with a ST6001 autohelm interface.
Does any one know how to reverse this?
many thanks
Jarvis
http://crocbones.blogspot.com
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Yep, turn your fluxgate compass thinghy from Raymarine 180 degrees
ciao!
Nick.
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19-06-2011, 14:49
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#4
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cruiser
Join Date: Oct 2007
Posts: 751
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Re: Chartplotter shows the boat as going backwards
Check the variation setting too. I've seen that pop into manual and mess up everything. It's in the System settings - set it to automatic.
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19-06-2011, 16:43
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#5
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Elvish meaning 'Far-Wanderer'
Join Date: Jan 2008
Location: Boat - Greece - Me - Michigan
Boat: 56' Fountaine Pajot Marquises
Posts: 3,489
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Re: Chartplotter shows the boat as going backwards
Is whatever is wrong with crazyhorses chartplotter happen with radar also? My radar reads 180 degrees backwards but my chartplotter is correct.
__________________
Our course is set for an uncharted sea
Dante
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19-06-2011, 18:13
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#6
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always in motion is the future
Join Date: Feb 2009
Location: in paradise
Boat: Sundeer 64
Posts: 18,858
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Re: Chartplotter shows the boat as going backwards
Quote:
Originally Posted by Palarran
Is whatever is wrong with crazyhorses chartplotter happen with radar also? My radar reads 180 degrees backwards but my chartplotter is correct.
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Yes, it's your heading sensor. You can select COG or heading for pointing the bow on your plotter... should be heading imo but your unit is on COG which is probably the default value.
ciao!
Nick.
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19-06-2011, 18:21
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#7
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Elvish meaning 'Far-Wanderer'
Join Date: Jan 2008
Location: Boat - Greece - Me - Michigan
Boat: 56' Fountaine Pajot Marquises
Posts: 3,489
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Re: Chartplotter shows the boat as going backwards
Thank you Master Jedi. I'll look it up in the manual before I go down next.
__________________
Our course is set for an uncharted sea
Dante
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19-06-2011, 18:26
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#8
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Elvish meaning 'Far-Wanderer'
Join Date: Jan 2008
Location: Boat - Greece - Me - Michigan
Boat: 56' Fountaine Pajot Marquises
Posts: 3,489
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Re: Chartplotter shows the boat as going backwards
Nick, just so I'm clear. This is a furuno chartplotter and it's the same plotter for radar. So is it possible to have the chart function correct and the radar backwards? I'm trying to find it in the manual right now.
__________________
Our course is set for an uncharted sea
Dante
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19-06-2011, 19:12
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#9
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always in motion is the future
Join Date: Feb 2009
Location: in paradise
Boat: Sundeer 64
Posts: 18,858
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Re: Chartplotter shows the boat as going backwards
Quote:
Originally Posted by Palarran
Nick, just so I'm clear. This is a furuno chartplotter and it's the same plotter for radar. So is it possible to have the chart function correct and the radar backwards? I'm trying to find it in the manual right now.
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Oh no... sorry, I mixed you up with the OP.
Which heading sensor do you have (and which autopilot?). Navnat 3D ?
ciao!
Nick.
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19-06-2011, 21:29
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#10
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Registered User
Join Date: Aug 2007
Location: Clear Lake Marine Services - Seabrook, Texas
Boat: Gulfstar, Mark II Ketch, 43'
Posts: 2,359
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Re: Chartplotter shows the boat as going backwards
Ot the more important thought, are you going so slow the world is passing you by???
__________________
Formerly Santana
The winds blow true,The skies stay blue,
Everyday is a good day for SAILING!!!!
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19-06-2011, 21:40
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#11
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Registered User
Join Date: Jun 2010
Location: Gig Harbor, WA
Boat: Prior boats: Transpac 49; DeFever 54
Posts: 2,874
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Re: Chartplotter shows the boat as going backwards
MarkJ... you cracked me up!!!! Capt Phil
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19-06-2011, 21:43
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#12
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Registered User
Join Date: Aug 2003
Boat: Dragonfly 1000 trimaran
Posts: 7,145
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Re: Chartplotter shows the boat as going backwards
Palarran,
Maybe you should just change your signature to
Not all who wander are lost, JUST ME!
__________________
The question is not, "Who will let me?"
The question is,"Who is going to stop me?"
Ayn Rand
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19-06-2011, 22:26
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#13
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Registered User
Join Date: Mar 2007
Location: Cormorant Island, BC, Canada
Boat: Lancer 44 Motorsailer
Posts: 1,877
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Re: Chartplotter shows the boat as going backwards
Didn't everyone get the email that the worlds magnetic field had reversed. I am sure I saw that on TV. I also noticed that my wine has been evaporating at a faster rate than usual. Is this related?
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