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bif Occasional Visitor
Joined: Apr 18, 2006 Posts: 19
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Posted: Mon May 15, 2006 3:30 pm Post subject: innacuracy and bad sat signals in central London |
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newbie here, to both here and GPS, so forgive me if I go over already trodden ground or say something that makes me sound like an idiot!!!
Bought my Tom Tom GO500 about a month ago. Its been great. Used it all over the southern counties and East London.
However, driving through Croydon on Friday night, it was directing me up one-way streets, and central London on Saturday night was just horrific. The time you need it most, the signal was constantly lost, I was literally going around blind. Trying to send me down one-ways, no entrys and everything.
I am really disappointed as for me having it available for that type of driving in citys is a major buying point.
Any comments gratefully received. Oh, just incase you need to know, I have App. 5.440 Great Britain Plus Map v571 |
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Eldar Pocket GPS Moderator
Joined: Sep 24, 2004 Posts: 1294 Location: London
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Posted: Mon May 15, 2006 4:39 pm Post subject: |
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external antenna you need.....(c) Yoda |
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bif Occasional Visitor
Joined: Apr 18, 2006 Posts: 19
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Posted: Mon May 15, 2006 5:00 pm Post subject: |
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thanks for that Yoda
have not had any problems with signal other than in London? I would have thought it would be good there, or is it buildings etc blocking? |
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alix776 Pocket GPS Moderator
Joined: 03/05/2003 14:45:49 Posts: 3999 Location: leyland lancs ENGLAND
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Posted: Mon May 15, 2006 5:09 pm Post subject: |
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it would be the buildings block the units veiw od the sky _________________ currently using aponia truck navigation on windows phone. Good bye IOS don't let the door hit you on the way out .
Oh the joys of being a courier.
device Lumia 950 xl |
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peterc10 Frequent Visitor
Joined: Aug 21, 2005 Posts: 1761 Location: Kent, England
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Posted: Mon May 15, 2006 5:16 pm Post subject: |
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The unit needs to be able to see satelites in the sky - the more the better. The Urban Canyons in London (and Croydon) block the view, giving the problems you have.
I wonder whether an external area would make a lot of difference, given that the building are pretty impenetrable to the weka satelite signals, but would bow to those that have tried and succeeded. _________________ Peter
HTC Sensation
Sygic GPS for Europe (No more TT "support"!)
Copilot for USA
Bury CC9060 bluetooth car kit & Brodit mount |
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alix776 Pocket GPS Moderator
Joined: 03/05/2003 14:45:49 Posts: 3999 Location: leyland lancs ENGLAND
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Posted: Mon May 15, 2006 5:18 pm Post subject: |
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maybe a reradiating aireal would help or get a on of the new x10 range _________________ currently using aponia truck navigation on windows phone. Good bye IOS don't let the door hit you on the way out .
Oh the joys of being a courier.
device Lumia 950 xl |
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bif Occasional Visitor
Joined: Apr 18, 2006 Posts: 19
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Posted: Mon May 15, 2006 5:24 pm Post subject: |
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gradually getting lost here, and thats without the GPS..........
Okay, so possibly an external antenna would help.
Any good websites for them? Reccommendations? |
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Eldar Pocket GPS Moderator
Joined: Sep 24, 2004 Posts: 1294 Location: London
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Posted: Mon May 15, 2006 5:44 pm Post subject: |
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peterc10 wrote: | I wonder whether an external area would make a lot of difference, given that the building are pretty impenetrable to the weka satelite signals, but would bow to those that have tried and succeeded. |
Indeed it would, because 1) a GO500 can pick up weak reflected signals, which the external antenna will amplify, and 2) it will reduce the noise because it is removed from the major noise source - the GO itself. |
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alix776 Pocket GPS Moderator
Joined: 03/05/2003 14:45:49 Posts: 3999 Location: leyland lancs ENGLAND
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Posted: Mon May 15, 2006 6:44 pm Post subject: |
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have a look at eldars www button _________________ currently using aponia truck navigation on windows phone. Good bye IOS don't let the door hit you on the way out .
Oh the joys of being a courier.
device Lumia 950 xl |
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Johnny_D Regular Visitor
Joined: Mar 04, 2006 Posts: 119 Location: West Suffolk
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Posted: Mon May 15, 2006 6:49 pm Post subject: |
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What car are you driving?
I often drive in and around Croydonia and have no trouble
with my TTG3...
Lowest i have ever noticed was '3 bars' and that's rare....
Could be your windscreen is blocking? Could be your location
within the windscreen that is not helping?
JD _________________ TTG 300 Died the death of a cracked screen
Navman F20 USB Fell off
TTG 520 Third time lucky?
Bloody Superb PGPSW Camera Database.
Not much else! |
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Eldar Pocket GPS Moderator
Joined: Sep 24, 2004 Posts: 1294 Location: London
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Posted: Mon May 15, 2006 6:55 pm Post subject: |
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Johnny_D wrote: | What car are you driving?
I often drive in and around Croydonia and have no trouble
with my TTG3...
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Something to keep in mind -
1. 500s are noisier than 300s and may be less sensitive
2. All GOs are different and may perform differently under the same conditions - I've seen Classics which were as good as ONEs |
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bif Occasional Visitor
Joined: Apr 18, 2006 Posts: 19
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Posted: Mon May 15, 2006 11:19 pm Post subject: |
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what car? A very old 1989 BMW 318i, no heat reflective screen. Croydon was bad with the mapping too, but thats nothing to do with the signal.
will look into external antenna. If it might improve it then its worth a shot.
Cheers for the advice so far |
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