100 yards out of position

woz · Occasional Visitor Joined: Jul 19, 2005 Posts: 6

I am using TomTom Navigator 5 with a Leadtek 9553 GPS receiver. I find that the position on the screen and the voice prompts are about 100 yards late. Can anyone advise if this is normal or if there is anything I can do to correct it?

I also find that the indicator position moves every few seconds in quite big jumps. I don't know if this is linked to the above problem. Can anyone advise?

Thanks in advance.

Woz.

StevenGourlay · Posted: Tue Jul 19, 2005 5:15 pm Post subject:

how many sats are you picking up in the GPS status menu?

click on tomtom, change preferences, i think its 4 of 6 configure gps or gps status.
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woz · Occasional Visitor Joined: Jul 19, 2005 Posts: 6

It is the same if I am picking up 4 or 9.

StevenGourlay · Posted: Tue Jul 19, 2005 5:36 pm Post subject:

do you know if there is any firmware update for your GPS as its either that or there is somthing wrong. Is this the same inside and outside the car?
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woz · Occasional Visitor Joined: Jul 19, 2005 Posts: 6

Do you know how I find out wich firmware version I have and where can I get the latest from. It appears to be the same outside the car too.

StevenGourlay · Posted: Tue Jul 19, 2005 5:52 pm Post subject:

Sorry does not look like any firmware but you might want to check

http://www.leadtek.com.tw/eng/support/download.asp?downlineid=80&downline=LEADTEK%20GPS%209553%20BLUETOOTH%20GPS%20RECEIVER for the drivers to test separately from your GPS software.
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Steven Gourlay
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woz · Occasional Visitor Joined: Jul 19, 2005 Posts: 6

Thanks for the help. I can not get the Leadtek software to load to my PDA (Dell X30 2003 SE). I think that it is not compatible with 2003 SE.

woz · Occasional Visitor Joined: Jul 19, 2005 Posts: 6

I have just been for a walk round the block and it does appear to be accurate. When I stood on a street corner it got me in the right place, but when I started to walk away it took some time to react. I think the problem is with the time it takes to adjust to changes in position. I can see this a small amount when walking but it must get worse when doing 70 mph and therefore I have moved on 100 yards. Could the problem be with the bluetooth data transfer? Any idea's?

Steve_142 · Occasional Visitor Joined: Jul 20, 2005 Posts: 5

what is your SD card (make, size, and speed rating), and what it it formated to (FAT16 or 32... what size clusters?). Do you have loads of POIs displayed? - if so, turn them off.

Only reason I ask, is that I was running TTN3 on a Kingston 128Mb card and it would be quite jerky in it's movements. It's supposed to be smooth. I tried re-formatting the disk to FAT32 1Kb clusters, as suggeted on here somewhere, but it made little difference.

I then bought a high speed Corsair card, formatted that in the same way, put TTN5 on, and it works a treat, smooth as anything.

Ergo, I proved to myself that it wasn't my PDA, or the GPS receiver, but a slow card.

woz · Occasional Visitor Joined: Jul 19, 2005 Posts: 6

After selecting not to show POI it is now working fine.

Thanks

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