Suppport Thread for the TND 500, TND 700 or future Rand McNally products.

No problem... Sometimes it is easy to send me a PM. I will get an E-Mail that way.

Thanks,
Mark

 

Great troubleshooting..

If you are at home and have High speed internet, I can push the files again to you. I use TeamViewer to remote to your computer and also use FileZilla for the FTP client.

You do have the files on your computer already, but as I have mentioned before, if you got a bad download from the Dock Server, then you would be pushing the same files back onto your TND.

Thanks,
Mark

 

E-mail me at rmleadbetatester@gmail.com

I will need the unit connected.

Go to www.teamviewer.com under downloads and install that. Then E-Mail me the ID/PW.

Thanks,
Mark

 

Depends on a few factors. On the TND/Preference/General/GPS Status - Look at the bottom right. DOP should be < 2, if not then you are not picking up a lot of satellites. Look at Satellites Used/Seen. The more used the better. 4 is the magic number to place you more to your physical location.

If you are say only using 2, then the GPS is only getting a rough idea of your location. The more used, the more it can pinpoint your location.

The road may have been changed and the maps you are on do not reflect the correct location.

The Satellites may be in the process of being moved again. Remember they are in a decaying orbit and have to be bumped back into the intended orbit around the earth from time to time.

Let me know what road you are on and the approx. mile marker.

DOP - http://en.wikipedia.org/wiki/Dilution_of_precision_(GPS)

GPS satellites circle the earth twice a day in a very precise orbit and transmit signal information to earth. GPS receivers take this information and use triangulation to calculate the user's exact location. Essentially, the GPS receiver compares the time a signal was transmitted by a satellite with the time it was received. The time difference tells the GPS receiver how far away the satellite is. Now, with distance measurements from a few more satellites, the receiver can determine the user's position and display it on the unit's electronic map.

A GPS receiver must be locked on to the signal of at least three satellites to calculate a 2D position (latitude and longitude) and track movement. With four or more satellites in view, the receiver can determine the user's 3D position (latitude, longitude and altitude). Once the user's position has been determined, the GPS unit can calculate other information, such as speed, bearing, track, trip distance, distance to destination, sunrise and sunset time and more.

Number of satellites visible - The more satellites a GPS receiver can "see," the better the accuracy. Buildings, terrain, electronic interference, or sometimes even dense foliage can block signal reception, causing position errors or possibly no position reading at all. GPS units typically will not work indoors, underwater or underground.

Thanks,
Mark