A walk in the sea !!

[stormin7039]

During a day in the Lake District, my Active 10 was switched on all day, during which time several car journeys, walks and a long stop for lunch were made.
Logging was stopped during car journeys and lunch.
The resulting tracks showed the walks taken and the car journeys represented by straight orange lines. However, there are several other features which I cannot explain.
A track about a mile long appears 1.5 miles out in the Solway Firth. Also, a waypoint appears at a place that was not visited. It appears at the end of a straight orange line, implying that a car journey was involved, but this journey was never made.

Has anyone else experienced this or is able to offer an explanation?

[rothers]

Temporary bad GPS signal that's all.

[LostMike]

I have had a case when I walked on water for over 2 miles at a speed of several hundred miles an hour (no applause needed).

I had some odd entries and some drifting about six months ago and assumed it was one of the beta test upgrades I was trying at the time. SatMap did not seem to be too troubled and came up with no answer and since then things seemed to have settled down.

I suspect that sometimes the device produces a spurious location and if it is just a single false reading the time to and from the point are likely to be straight lines as the device will think you have done it at high speed.

Hope that makes sense even if it does not explain why it happened.
_________________
LostMike
Satmap A10. Platform 21
Software version 1.5.9193
Satsync 1.525

[lucevans]

There is another possibility - the MOD engage in GPS jamming exercises from time-to-time (see http://www.grough.co.uk/magazine/2011/05/13/jamming-exercises-will-affect-gps-signals for just such an exercise.)
This is a good reason to never rely entirely on just your Satmap unit!

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