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Pocket GPS World :: View topic - Slow refresh rate in the centre of London. A mile behind me!
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Slow refresh rate in the centre of London. A mile behind me!

 
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grillphil
Occasional Visitor


Joined: Apr 11, 2007
Posts: 42
Location: Waltham Cross, Herts.

PostPosted: Mon Apr 30, 2007 3:52 pm    Post subject: Slow refresh rate in the centre of London. A mile behind me! Reply with quote

Can anyone tell me if I can improve the refresh rate while using the icn630 in London as the satnav seems to be about a mile behind where I actually am, travelling at about 10mph in traffic?

Do I need a gizmo that inpoves the antenna?

And no, I did not through it out of the window Wink
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Darren
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Joined: 11/07/2002 14:36:40
Posts: 23848
Location: Hampshire, UK

PostPosted: Mon Apr 30, 2007 5:00 pm    Post subject: Reply with quote

You need an external antenna. This may give an improvement but may not completely resolve your issues. The iCN630 has a SiRFII chipset which is not as efficient as the current SiRFIII.

SiRFIII copes much better with urban canyon environments such as London. The only way to change receiver is to replace the device.
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grillphil
Occasional Visitor


Joined: Apr 11, 2007
Posts: 42
Location: Waltham Cross, Herts.

PostPosted: Tue May 01, 2007 12:46 pm    Post subject: Reply with quote

Thanks for the quick reply. I'm looking at the newer N40i which may be the next upgrade for me. Is this a good one?
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