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Anyone else seeing horrendous GPS performance lately?

NYanakiev7
over 4 years ago

I am on 15.20 and GPS 5.0- every second recording with GPS+GLONASS and always wait for a few minutes with the watch ready to go before I start running. GPS tracking has been even worse than its usual mediocre (for me) self lately. Anyone else seeing this???

https://www.strava.com/activities/4963627081 

  • 0 over 4 years ago in reply to C.sco

    As I posted earlier, I did a run with the Forerunner 245 and the F6 Pro

    245-f6

    The F6 Pro is offset to the north on the road section at the top, along the river they are pretty accurate.

    I do find the 245 GPS superior having spend 1 month with 1 on each wrist - as you can see from the satellite image these are not difficult conditions. It also somewhat debunks the poster upwards blaming the maps!

  • 0 over 4 years ago in reply to Dr Phil

    I've always found the distances very close - over the last month, I have used the F6 Pro, the 245 and sometimes even the Polar V800 mounted to my handbars as well if I'm on my bike.

    It's rare I see distances vary anymore than 0.01 mile at the end, even on 30 mile bike rides - the F6 Pro tends to have more 'wobbles' where is is offset as you see above  (enough to cause a Strava segment 'miss' occasionally), but this doesn't really seem to impact distance much, certainly nothing that would concern me.

  • 0 over 4 years ago in reply to 5135968

    I think it has more to do with the watch position, when riding a bike watch is facing up more less all the time. My bike rides have much better track than runs. 

    I had a very bad track on Saturday so I was wondering if something was wrong again (CPE?) , but yesterday everything was OK.

  • 0 over 4 years ago in reply to 7162912
    7162912 said:
    I think it has more to do with the watch position, when riding a bike watch is facing up more less all the time. My bike rides have much better track than runs. 

    I also have some runs with the Polar V800 (still the best GPS watch for accuracy) against the Forerunner 245 and those are really close - running on the right side of the road too, and not into hedges. 

    I've got about 1 months of data from this sort of stuff, I'm tempted to post it, but it'll just cause fights.

  • 0 over 4 years ago

    I posted a not so good run from the 15th and further down showed a comparison with the 245.

    I have done another run this morning with the Fenix 6 Pro only this morning

    GPS is pretty much spot on today - here are 2 zoomed in crops of the run, the second image shows the GPS track overlay removed so you can see the road - the other day I was way off the road to the north, here I'm not.

    I cross a bridge twice, and both times I'm on the bridge, and on the correct path, not in the water. The track generally looks really good.

    With GPS tracks shown:

    https://ibb.co/FKXx2x8

    With GPS tracks removed so you can clearly see the roads I followed.

    https://ibb.co/JnYhHHX

    PS: For some reason a section of the track seems missing in the software I used, although it's not in Strava or Garmin Connect.

  • 0 over 4 years ago

    I lived about 300m from you for many years. The towpaths in particular are really bad for GPS. Tbh that trace looks like mine used to with several different devices. It's Just the nature of the tech.