Around three years ago I purchased a Garmin Oregon 600 GPS. Within the first twelve months I found that the track would at times go haywire - almost as if a child in a frenzy had taken to scribbling with a crayon! I did get in touch with GPS training who supplied the unit and they offered plenty of support and advice including contacting Garmin and after a while it did settle down and I just got used to cleaning up the track once I returned home as I assumed that this was just 'one of those things' that happen with a GPS unit. Since then I have just persevered with it until a few months ago when, after a Garmin update, the track was behaving so badly as to render the unit useless. If you stood still you could see the location pointer moving around the map on its own. After contacting Garmin support and sending them some of the tracks they declared the unit faulty and offered to replace it with a reconditioned unit. (At cost as my unit was now out of warranty) With the replacement unit the track from my first two walks was fine but on my last walk the same thing has happened again whilst I was sat having my lunch. After restarting the unit the track then behaved itself to the end of the walk. I am going to check it over the next couple of walks to see if it happens again before contacting Garmin but wonder if anyone else has had this experience with a Garmin GPS and, if so, did you manage to find the cause?
The track is set to 'Auto pause' which, as far as I am aware' means it should stop tracking when stationary. I would also emphasise that I am not talking about a simple 'spike' which sometimes occurs after the unit has temporarily lost the GPS signal.
I do have an image of the track but unsure how or if I am able to attach it to this post. Any help to shed light on this problem would be appreciated.