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Long/Lat difference

 
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rebootuk
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Joined: Jul 23, 2007
Posts: 25

PostPosted: Thu Aug 09, 2007 9:39 am    Post subject: Long/Lat difference Reply with quote

Can anyone explain this?

I have a TT1XL EW and a Garmin Etrex Legend. So, I would like to input a Lon/Lat in to my TomTom by hand from the garmin or should I say mapsource. Problem, TomTom only deals in North and South where as Garmin deals in North and West. So, what do I do? Any help appreciated. Thanks all.

KK
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JockTamsonsBairn
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Joined: Jan 10, 2004
Posts: 2777
Location: Bonnie Scotland (West Central)

PostPosted: Thu Aug 09, 2007 10:24 am    Post subject: Re: Long/Lat difference Reply with quote

rebootuk wrote:
Can anyone explain this?

I have a TT1XL EW and a Garmin Etrex Legend. So, I would like to input a Lon/Lat in to my TomTom by hand from the garmin or should I say mapsource. Problem, TomTom only deals in North and South where as Garmin deals in North and West. So, what do I do? Any help appreciated. Thanks all.

KK
North & South Question How would that work then Question Laughing
TT uses North & South & East & West e.g. N51.50808,E0.01998 or N55.03738,W1.71097. If you mean that Garmin only accepts N & W and TT is giving you N & E, try entering as "-" e.g. N51.50808,E0.01998=N51.50808,W-0.01998
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Jock

TomTom Go 940 LIVE (9.510, Europe v915.5074 on SD & 8.371, WCE v875.3613 on board)
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MaFt
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Joined: Aug 31, 2005
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Location: Bradford, West Yorkshire

PostPosted: Thu Aug 09, 2007 10:37 am    Post subject: Reply with quote

the 'standard', as far as i'm aware, is 'northings and eastings' so anything west of greenwich is negative-east - i.e. -1.22334

north and west seems a bit odd to me...!

MaFt
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rebootuk
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Joined: Jul 23, 2007
Posts: 25

PostPosted: Thu Aug 09, 2007 4:05 pm    Post subject: Reply with quote

Seriously guys when I go to navigate and choose lat/long there is only a choice of N or S.

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rebootuk
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Joined: Jul 23, 2007
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PostPosted: Thu Aug 09, 2007 4:09 pm    Post subject: Reply with quote

Ahhhhh sorry guys, gives u option 1st and then changes for the second. Damn these brains Laughing Out Loud

KK
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rebootuk
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Joined: Jul 23, 2007
Posts: 25

PostPosted: Thu Aug 09, 2007 5:15 pm    Post subject: Reply with quote

Now I have managed to sort it out, slightly, I notice there is quite a difference in the two models when it comes to distance. Is this what everyone else has found?

KK
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MaFt
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Joined: Aug 31, 2005
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Location: Bradford, West Yorkshire

PostPosted: Fri Aug 10, 2007 9:49 am    Post subject: Reply with quote

rebootuk wrote:
Ahhhhh sorry guys, gives u option 1st and then changes for the second. Damn these brains Laughing Out Loud

KK


Laughing Laughing Laughing

glad it's sorted!

MaFt
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rebootuk
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Joined: Jul 23, 2007
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PostPosted: Fri Aug 10, 2007 4:50 pm    Post subject: Reply with quote

Hi NaFt, can you give me any idea why the Garmin handheld and the TT1 are so far out on matching up with lon/lat. I could send you a bearing to see for yourself but it is strange.

KK
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MaFt
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Joined: Aug 31, 2005
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Location: Bradford, West Yorkshire

PostPosted: Fri Aug 10, 2007 5:27 pm    Post subject: Reply with quote

if you mean you see a slightly different area on the map between the units when a specific lat/lon is used then it is likely silght variations in the 2 different mapping providers

if do you mean when 2 units are running side by side you get different co-ordinates then this could be due to the strength of satellite fix - remember even the strongest fix will only be accurate to around 10m or so

MaFt
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mikealder
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Joined: Jan 14, 2005
Posts: 19638
Location: Blackpool , Lancs

PostPosted: Fri Aug 10, 2007 5:50 pm    Post subject: Reply with quote

Decimal Degrees i.e 53,500 or Degrees Minutes 53 30.000 are both devices using the same basic method to enter the information - Mike
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