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GPS wildly inaccurate (measured 10 miles for 3 mile run)

5008593
11 months ago

I've been using my Fenix 6 pro for two years, and did a standard commute run of 3 miles this morning. The watch location constantly jumped back and forth between distant locations and my actual location - resulting in a recorded distance of >10 miles).

Having read a couple of posts, I'll try changing to gps only and if needed a factory reset, but is there anything else I should consider? Anyone else experiencing gps issues recently? 

Thanks in advance, 

Dave

  • 0 11 months ago

    Solar storm induced GPS issues in my area are resolved by now. Is this run a one time occurrence or one example of many? Did you already check if EPO is current? Syncing via Garmin Express seems to often help to update to the latest EPO and maps. Restarting the watch can't hurt and waiting extra long after obtaining a first fix is also a a good idea. If it keeps happening again and again, restore the watch to defaults and try again, if still no luck, contact Garmin Support. 

  • 0 11 months ago

    Yeah, my Fenix claimed during a walk by the Tay river in Dundee  about 7:15am this morning that I was running at high speed and had already covered 4.5km and climbing rapidly, but I was standing still and I had done only 300-400m at the very most.

    Had to discard that one and tried standing still for a while as I started and discarded multiple Walk activities which all immediately showed the same problem. Then I also changed temporarily to UltraTrac and that seemed to calm things down again and so I continued the walk.

    Never had any issues like this before, so glad to read the comment about solar storms, as I was fearing an issue somehow with last week's firmware ;)

  • 0 11 months ago in reply to Daniel Cleaton

    Ultra track is not accurate, it is intended for very long activities and records GPS only sparingly so the tracks are usually pretty bad.

    Do you notice anything else, such as parts of activities missing, heart rate or other data not being recorded, rebooting spontaneously?

    If not, it is probably nothing to worry about and longer "GPS soaking" before you start may help. The track you posted shows a clear outlier and that is most often the result of GPS signal reflections, fading, attenuation, temporarily no reception. High buildings, dense foliage, urban 'canyons', hills, rain, atmospheric conditiions et cetera can interfere with receiving the weak radio signals from satellites. 

    I don't advise Ultra Track. For me every second recording works best. 

  • 0 11 months ago in reply to Data

    Yeah, I have already changed back to GPS + Galileo, but not been for another walk activity since this morning. Thanks!