TomTom’s QuickGPSfix now available for TomTom ONE

TomDavison · Posted: Sun Jan 21, 2007 4:45 pm Post subject:

Well B**Ger me. You're right. According to the Tom Tom site, quick fix is an on-line download of the GPS ephemeris data. So I take it all back - you're right that if it works as advertised, you should have obtained very rapid fixes. I've always worked with GPS machines that download the data from the satellite direct. Tom Tom is obviously downloading the data from the satellites, and making it available on-line. Never knew you could do that, and I've always assumed that the software simply enabled the Tom Tom to do what other more sophisticated machines have been doing for some time.

wibbly · Frequent Visitor Joined: Dec 20, 2003 Posts: 315

Anyone else not have the new functionality actually seem to work!?

StanStill · Regular Visitor Joined: Feb 27, 2005 Posts: 81

Ever since I upgraded the software my TomTom One (original version) does not want to switch off. Every time I switch off it starts up again after about 2 or 3 seconds. I have tried soft resets, hard resets and it doesn't want to know. I have reverted to my backup and the problem is solved although the Quick GPS fix still seems to there.

I have the standard set with only speedcams installed, it was ok before and is ok now with 6.520 version reinstalled.

Anyone else had this problem? Crying or Very sad

mikealder · Posted: Sun Jan 21, 2007 8:08 pm Post subject:

Put the update back on the device and if it does the same thing again use the reset switch but hold it down for 30 seconds - Mike

StanStill · Regular Visitor Joined: Feb 27, 2005 Posts: 81

I have just done that but the result is the same. I am having to revert back to the previous version so that is usable.

rejo · Occasional Visitor Joined: Oct 14, 2006 Posts: 22

Just upgraded to 6.56 and have now lost the start up and closing down screens. From pressing the start button I get a blank screen for a few seconds and then it goes straight onto the the map screen, how do i get the start up and closing down screens back. Would I be better of buying a 2gig card for future updates.

Andy_P · Posted: Sun Jan 21, 2007 11:50 pm Post subject:

rejo: check to see if you still have "splash.bmp" (or "splashw.bmp") and "suspend.bmp" (or "suspendw.bmp") in the root directory of your SD card or harddisk.
If not, then it should be an easy job to copy them back on from your backup (or download new ones from here / create your own - search "Splash screen" for instructions)

If they ARE there, then something has corrupted. Try a reset first (short and long - search "hard reset" for details). Finally try re-installing the software again.

jzerocsk · Occasional Visitor Joined: Jan 02, 2007 Posts: 33

entwood · Regular Visitor Joined: Jul 31, 2005 Posts: 117

All GPS satellites "move around" their "perfect" theoretical position for any given moment in time, as well as NOT being geo-stationary.. ie THEY MOVE !!!

They communicate with each other, and with a central control to "modify" the position signal they transmit in order to give an accurate "fix" when communicating with any device.

In order to know what the "error" in position is .. they have to know where they "should" be at any given moment. This data is stored in an "almanac" and is re-broadcast/updated at set intervals.

All aviation GPS ( civilian or military) can recieve and store this almanac, which enables rapid alignment on switch on, as the forecast positions satellites for the duration of the almanac is known. If the device is not used within the almanac "life" then it can actually make subsequent lockons slower, as the device initially looks in the wrong place !!

IMHO all the "QuickGPSFix" is doing is storing the almanac data as other devices already do, and the reported behaviour, slow initiallly then fast on subsequent switch ons .. if done within the almanac life.. otherwise it is back to slow as the almanac does not help until updated again.

So although TomTom are building it up as something special .. it could .. and should have been in all devices since first introduced ..

Sad

thomagd · Occasional Visitor Joined: Dec 22, 2006 Posts: 31

I thought QuickGPSFix needed the SirfIII chipset to operate but doesn't the original TomTom One not have the SirfIII ?

Why can't the QuickGPSFix be downloaded from the satellites ?
_________________
Gareth

JockTamsonsBairn · Posted: Mon Jan 22, 2007 9:12 pm Post subject:

mikealder · Posted: Mon Jan 22, 2007 9:23 pm Post subject:

Perhaps the TomTom site has updated the applicable models:

JockTamsonsBairn · Posted: Mon Jan 22, 2007 9:37 pm Post subject:

rejo · Occasional Visitor Joined: Oct 14, 2006 Posts: 22

Re andy p2002
thanks for your help, now sorted.
just goes to show that making a back pays of......

Andy_P · Posted: Mon Jan 22, 2007 9:43 pm Post subject:

I didn't think the 710 was ever released in America.... Wink

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