Non-Receptive Areas?

[Naomi]

Bought A TT1 a few days ago: first incyrsion into SATNAV for me but I am so impressed.
History: updated splash and added speed camera database yesterday. Went out and tested it, all worked impressively well.

So today, still in new toy mode, it was switched on as I drove the well trodden route to work. All Fine. As I reached work, it suddenly lost satellite contact. I was 5 metres from a 35 foot tall building, so half expected it. I did not expect it to remain once I had gone past and was 70 yards from the same building and on an open car park with no other buildings within 500 yards .
Messages on screen such as "lost GPS contact 1 minute 30 seconds ago" "No GPS Device". The unit also seemed to keep restarting...and then failing to pick up good GPS contact. And also it would dim the splash screen after a few seconds, and sometimes remained with the splash on screen. It would also not properly accept commands to change preferences, such as sound on and use daylight colours. So I went for a walk, and only once I had travelled some 500 yards, across a fairly open area, would it come back. Tried again lunchtime and only when I was away from here did the device again work properly. Returning post lunch in the car, same problem, same area. I even poked the reset button to no avail.

So the query is: Are there any GPS shadow areas within which I should expect these problems. How large can they be? It doesn't look as if my device is defective, just as if the area here is defective. All very odd, and I shall monitor it for a few days, and maybe walk off at 90 degrees to today's direction tomorrow.

[Antoeknee]

You need to look at the sat info. Remember that the TT will need to have line of site to at least 3 sats.

Tall buildings can cause problems and getting a sat lock again mayy be a problem if signal is marginal do you have good signal when your TT is in the car?

[Naomi]

[GaryBeers]

[Eldar]

Naomi

While it is possible to have areas of poor GPS reception even under the open sky conditions (there could be sources of electro-magnetic interference around, such as computers, mobile phone network base stations, radio relay stations, etc, etc), everything else you describe points to some fault with your ONE. I would get it replaced if I were you.

[Naomi]

[buyrvrvvtiu]

There is a large area in Bolton ( at least a sq. mile) where my TOMTOM goes crazy. No tall buildings around. If it is interferance then it's permanent because even 12 months after the first time I noticed it, it is still bad.

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