Question about Tomtom GO 720 GPS Receiver

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Slow boot up, no GPs, freezes

Takes ages to boot up. Rarely locates a GPS signal. When it does it freezes/crashes after a few minutes.

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Posted on May 03, 2009

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Unable to acquire satellites


GPS devices do not work inside buildings or in tunnels. Even outside, high-rise buildings or trees can interfere with GPS signal reception. Car navigation systems do not work through the roof of the car, they need to be mounted to the windshield of the car with free view to the sky, or use an external antenna.
Some cars have metal coating on the windows for sunlight blocking or privacy protection. Such coatings may also block the GPS satellite signals.

Another problem: unlike TV satellites, GPS satellites do not have a fixed position relative to the ground, they move all the time. Your GPS device needs to locate and tune in on four satellites minimum first to start working for you. The scanning of the hemisphere to locate satellites takes several minutes (up to ten on Tomtom devices).

Tomtom devices use a device stored file with precomputed satellite positions to speed up the process to a few seconds. Since the file holds data only for about two weeks, the package "QuickGPSFix" needs to be updated at least once in a fortnight using the Tomtom HOME software, or it will fall back to the slow scanning procedure.

If you do have a different brand of GPS device, please add a comment to this post and I'll try to give further advice.

Jan 06, 2011 | GPS

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MY TOMTOM ONE WILL NOT PICK UP A VALID GPS SIGNAL


The Tomtom devices need to locate GPS satellites in the sky in order to work. Unlike TV satellites, these do not have fixed positions but move relatively to the ground. The Tomtom can locate them by scanning the hemisphere, but this takes up to ten minutes after you switch on the device.

To speed up the process, the Tomtom receivers can use a helper file stored on the device. It holds precomputed positional data for the GPS satellites that makes finding them a matter of a few seconds.

However, the file holds precomputed data for some two weeks in advance only. After this period, the Tomtom device has to resort to the slow scanning procedure.

You will need to connect your Tomtom device to a PC with the "Tomtom HOME" software installed, available from the Tomtom company web site. Use the software by following the onscreen instructions to update the package "QuickGPSFix" at least once every two weeks and you will find your device much more swift in establishing GPS connection.

Note also, all GPS devices require clear view of the sky. They do not work inside buildings, in tunnels, through the roof of the car, and even trees or buildings near to the car may compromise GPS reception. Make sure the device is mounted in an area of the windshield where it can "see" the satellites.
Some cars have metallic a coating on the windows (used for sunlight filtering and "can look outside - can't look inside" fancies). There are reports that these coatings also interfere with GPS receivers' ability to receive the satellite signals.

Jan 05, 2011 | Tomtom ONE GPS Receiver

1 Answer

No signal gps


Are you indoors (inside a house, building, garage)? The GPS must be able to "see the sky" in order to get a signal. Please note that it takes a while for it to get a signal once it does see the sky. It must sync with several satellites before it can pinpoint your location and this takes a few minutes. If you are inside, move next to a window.
If you are outside, check to make sure that the GPS is near the windshield (or window of your car) and you aren't under the cover of trees or other objects. Anything between the satellite and the sky will obstruct its ability to sync. Unfortunately, they sometimes have trouble getting a signal on a cloudy day, too.

Jun 28, 2010 | Tomtom One Europe v2 GPS Receiver

1 Answer

I installed garmin xt but the signal for gps is 0


Hi

The samsung B7320 takes a real long time to get the 3D fix thats required by the navigatin softwares.

Check the following
1) In manual for see how GPS needs to be configured. I would recommend you keep the settings to Intermediate GPS driver.
2) If the settings are done as per requirement, take your phone in an open space and then see if the signals are available. Be patient as the fix takes a real long time sometimes even few minutes.
3) If the problem of no signals persists you need to test if your GPS chipset is working. Use turbo GPS for this.

Nov 12, 2009 | Samsung Omnia Pro B7320 Smartphone

1 Answer

Takes 3 minutes to turn on, then is ok finding a signal


Its not uncommon for some GPS to take a while to "warm up"

Check the tom tom site as some tom toms have a quick sat finder update. If you use tom tom home on your computer it usually has an UPDATE option where it will go online and get any fixes etc for your device.

Even then you may still see over a minute or so to boot up.

Aug 07, 2009 | Tomtom ONE GPS Receiver

1 Answer

My Tom Tom One takes a long time to pick up a GPS signal (30 to 45 minutes)


You might want to try updating your TomTom through TomTom Home. It loads something called "QuickFix" onto the TomTom, which I guess tells the TomTom where GPS satellites are going to be. I get a fix in about 5-15 seconds if I keep this updated, otherwise it takes a few minutes.

Aug 01, 2009 | Tomtom One XL GPS Receiver

1 Answer

Freezes up after being powered on


Make sure you are getting a good satellite signal. If you are not in a building it should start working after a few minutes. Does it say "gps signal lost ___minutes ago" in the bottom left hand corner?

Jul 27, 2009 | Tomtom One XL GPS Receiver

1 Answer

MY TOM TOM IS SAYING NO SIGNAL WHAT DO I DO I AM ON THE ROAD?


Are you near any buildings? They cause interference. Also, did you just turn on the device? Sometimes it takes a few minutes to locate the satellite(s).

Apr 03, 2009 | Tomtom One XL GPS Receiver

1 Answer

Sanyo 4370 - Unable to find GPS


Make sure your GPS is not blocked. Try to acquire sattelite signals in an open and clear area. From Main Menu, tab Sys Info. and tab GPS Reset. After this, wait for a few minutes and check GPS Status again. Sometimes it takes a while depending where you are located.

Feb 14, 2009 | Sanyo EasyStreet NVM-4370 Car GPS Receiver

1 Answer

Losing GPS signals.


i also have the same problem my gps loses the signal i left the unit on power for two days and still no signal please help.

Nov 26, 2007 | Fine Digital FineDrive 400 GPS Receiver

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