GPS Accuracy

Didn't find thread about the subject in 945 forum, so let's start. There was something about the GPS soak and best setting for UK.

What are your experiences and what GPS setting are you using?

I had been using 935 with GPS+Galileo and set the same to 945 and the accuracy seems to be worse.

Maybe I need to switch to GPS+GLONASS as it's what has been optimized more by Garmin atm, what I've understood.

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  • So first test with the Beta GPS firmware. Promising! Not as good as 935 still, but not miles away either. Both logged very similar distances, but if I do close ups, 945 is more often wrong than 935. Under passages especially seems to be hard for 945. GPS lock time was much better with 935, but might have something to do with first GPS lock with new firmware. Tried to get CPE updated.

    https://connect.garmin.com/modern/activity/3747540379
    https://connect.garmin.com/modern/activity/3747521325

    945 - Green, 935 - Blue.

    1. The old trusty football field. Now these are pretty good. No complains! Points: 1-1

    2. Under the motorway. 935 struggles in side the underpassage but 945 skips long way and then has a spike. Points to 935, 1-2.


    3.Visit to stop. Paused the watches. Even waited some time to give 945 more opportunity to match 935, but no, cuts straight line, so points again to 935, 1-3. 


    4. Last meters with underpassage. 935 is really spot on, some errors in the last small ramps, 945 not bad, as I have something to compare, points again to 935, 1-4.


    So all in all. The new GPS firmware seems to have made significant improvements to GPS+Galileo. Distance wise the difference is really minimal and if this trend keeps up, good. GPS trackwise, it leaves room for improvements and is not as good as 935, but the difference is not so annoying anymore.

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  • So first test with the Beta GPS firmware. Promising! Not as good as 935 still, but not miles away either. Both logged very similar distances, but if I do close ups, 945 is more often wrong than 935. Under passages especially seems to be hard for 945. GPS lock time was much better with 935, but might have something to do with first GPS lock with new firmware. Tried to get CPE updated.

    https://connect.garmin.com/modern/activity/3747540379
    https://connect.garmin.com/modern/activity/3747521325

    945 - Green, 935 - Blue.

    1. The old trusty football field. Now these are pretty good. No complains! Points: 1-1

    2. Under the motorway. 935 struggles in side the underpassage but 945 skips long way and then has a spike. Points to 935, 1-2.


    3.Visit to stop. Paused the watches. Even waited some time to give 945 more opportunity to match 935, but no, cuts straight line, so points again to 935, 1-3. 


    4. Last meters with underpassage. 935 is really spot on, some errors in the last small ramps, 945 not bad, as I have something to compare, points again to 935, 1-4.


    So all in all. The new GPS firmware seems to have made significant improvements to GPS+Galileo. Distance wise the difference is really minimal and if this trend keeps up, good. GPS trackwise, it leaves room for improvements and is not as good as 935, but the difference is not so annoying anymore.

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