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Rickrst Occasional Visitor
Joined: Nov 06, 2003 Posts: 12
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Posted: Mon Oct 24, 2005 10:33 pm Post subject: Tomtom 5 20 seconds behind? |
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ive got a tosh e740, and have had no problems with tomtom 2 or 3 using original tomtom bluetooth gps receiver.
Ive recently been given another e740 with tt5 on it. I noticed that the map/plotting is quicker in version 5.
Problem is, when i start driving, it's about 20 seconds behind me. It'll show me passing a road, which ive passed 20 seconds ish ago. When i come to a stop, it carries on going until it eventually reaches my position.
Any ideas?
Rick. |
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lbendlin Pocket GPS Staff
Joined: 02/11/2002 22:41:59 Posts: 11878 Location: Massachusetts, USA
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Posted: Tue Oct 25, 2005 5:59 am Post subject: |
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XTrac mode enabled on the GPS receiver... _________________ Lutz
Report Map Errors here:
TomTom/TeleAtlas NAVTEQ |
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Rickrst Occasional Visitor
Joined: Nov 06, 2003 Posts: 12
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Posted: Tue Oct 25, 2005 5:13 pm Post subject: |
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Okay, humour me - whats xtrac and what do i need to do with it?
Rick. |
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lbendlin Pocket GPS Staff
Joined: 02/11/2002 22:41:59 Posts: 11878 Location: Massachusetts, USA
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Posted: Tue Oct 25, 2005 7:34 pm Post subject: |
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it's a mathematical trick of SiRF II chipsets to smoothen out position changes and to utilize weaker signals. It's now obsolete with SiRF III.
If you can , switch it off on your receiver. _________________ Lutz
Report Map Errors here:
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Rickrst Occasional Visitor
Joined: Nov 06, 2003 Posts: 12
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Posted: Tue Nov 15, 2005 11:41 pm Post subject: |
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Can this be switched off on the original TomTom BT reciever? |
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lbendlin Pocket GPS Staff
Joined: 02/11/2002 22:41:59 Posts: 11878 Location: Massachusetts, USA
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Posted: Wed Nov 16, 2005 7:54 pm Post subject: |
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I believe so - try to use SirfDemo on a PC _________________ Lutz
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TomTom/TeleAtlas NAVTEQ |
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