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    GPS accuracy - track and field

    Scheduled Pinned Locked Moved Suunto 9
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    • Mff73M Offline
      Mff73 @TM0702
      last edited by

      @thomas-ma
      It doesn’t really look like non accuracy, as it is really “geometrical” 🙂
      Have you eventually transfered the same workout to another plateform to compare the representation ?
      SA activity link or fit file may help to see what is inside (wrong data, wrong representation, raw data behind for suuntoguys).

      Suunto Spartan Ultra (since 2016) FW: 2.8.24 (retired)
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      • T Offline
        TM0702
        last edited by

        Thanks all. So I followed the instruction above and switched to another GPS system to “Galileo.” Attached is the tracking map.

        My next question is the accuracy: I ran 12.5 laps, which should end up equal to be 5k. However, the Suunto shows 5.38km. I ran on Lane 4 which is 423m per lap, and it should equal to 5.28m, I know 100m discrepancy is not huge but my friend is using another brand, Coros and his watch’s discrepancy is only 10m. We ran side by side as well.Screenshot_20210221-203740.png

        DMytroD 1 Reply Last reply Reply Quote 0
        • DMytroD Offline
          DMytro @TM0702
          last edited by

          @thomas-ma i think coros has a special feature for lap running where it averages out gps descrepancies so you get nicer track + more reliable distance.

          T 1 Reply Last reply Reply Quote 1
          • T Offline
            TM0702 @DMytro
            last edited by

            @дима-мельниченко Agree. In general I am quite happy with my Suunto 9 tracking.

            Does anyone know if there is any different GPS tracking function between “Track and Field” vs “Running” function? If no, should I just use “running” function for running at the sports ground going forward?

            surfboomerangS zadowZ 2 Replies Last reply Reply Quote 0
            • surfboomerangS Offline
              surfboomerang @TM0702
              last edited by

              @thomas-ma I noticed running profile does not record GPS every second, but a random interval between 1-4 seconds. On road races with distance of half a marathon I noticed the watch is always spot on in distance, but on a 400m track I can imagine it cuts the corners less accurate then it should do.

              Maybe that explains the difference.

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              • isaziI Online
                isazi Moderator
                last edited by

                This is from this morning in Amsterdam. Standard running profile, GPS+Beidou.

                track.png

                Watch: Suunto Vertical Ti

                Blog: isazi's home

                Dimitrios KanellopoulosD DMytroD T 3 Replies Last reply Reply Quote 0
                • Dimitrios KanellopoulosD Offline
                  Dimitrios Kanellopoulos Community Manager @isazi
                  last edited by

                  @isazi I know the place well 👌

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                  • DMytroD Offline
                    DMytro @isazi
                    last edited by

                    @isazi image isn’t from SA, right?

                    isaziI 1 Reply Last reply Reply Quote 0
                    • isaziI Online
                      isazi Moderator @DMytro
                      last edited by

                      @дима-мельниченко Runalyze with ESRI satellites view.

                      Watch: Suunto Vertical Ti

                      Blog: isazi's home

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                      • T Offline
                        TM0702 @isazi
                        last edited by TM0702

                        @isazi said in GPS accuracy - track and field:

                        Interesting. Next time I will try the GPBeidou system and see if it reports better result.

                        And you can tell from the screenshot (from Strava) my GPS is completely off track.pic.png

                        Dimitrios KanellopoulosD 1 Reply Last reply Reply Quote 0
                        • zadowZ Offline
                          zadow @TM0702
                          last edited by

                          @thomas-ma
                          Hi, have you tried “Track and Field” Sport mode for running on track? I can remember that I read somewhere that it (should) has some special setting for tracking running on Track. I have never tried it by myself. It just rang the bell for me, when I read your post…

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                          • Dimitrios KanellopoulosD Offline
                            Dimitrios Kanellopoulos Community Manager @TM0702
                            last edited by

                            @thomas-ma keep in mind that the satelite overlay isnt always 1:1.

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                            • T Offline
                              TM0702
                              last edited by

                              Thanks. i understand it is not always 1:1.

                              May be next time I will try the normal “running” mode while running on track and see if there is any difference.

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                              • T Offline
                                TM0702
                                last edited by TM0702

                                So I run another 10k using the regular run function, and here is the map from Strava. 10k should be 25 laps, but I think I ran 24 laps + 250m(?) from the map.run.png

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                                • zhang965Z Offline
                                  zhang965
                                  last edited by

                                  10k.JPG

                                  my 10k, it’s quite accuracy

                                  Winners Wear Winners

                                  BulkanB 1 Reply Last reply Reply Quote 1
                                  • BulkanB Offline
                                    Bulkan Moderator @zhang965
                                    last edited by

                                    @zhang965 Did you use loop? just curious if work well in a track.

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                                    zhang965Z isaziI 2 Replies Last reply Reply Quote 0
                                    • S Offline
                                      Shrek3k @TM0702
                                      last edited by Shrek3k

                                      @thomas-ma 24 laps + 250m would be rather outstanding and excellent in terms of accuracy.
                                      Just check how and where the 400m lap really is 400m long … I think it is nearly impossible to run the ‘perfect line’ for so long.

                                      using a Suunto Vertical & Suunto Wings; mostly running (AKA stomping around) and cycling mostly through the northern german "wilderness"
                                      OS - Android 15/Pixel Pro 7

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                                      • zhang965Z Offline
                                        zhang965 @Bulkan
                                        last edited by

                                        @bulkan said in GPS accuracy - track and field:

                                        @zhang965 Did you use loop? just curious if work well in a track.

                                        auto lap 1k

                                        Winners Wear Winners

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                                        • isaziI Online
                                          isazi Moderator @Bulkan
                                          last edited by

                                          @bulkan I used the loop S+ on the track, worked pretty well.

                                          Watch: Suunto Vertical Ti

                                          Blog: isazi's home

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                                          • T Offline
                                            TM0702 @Shrek3k
                                            last edited by TM0702

                                            @shrek3k Actually I checked again as I only ran 23, not 24 loop!!!

                                            I stayed at lane 2 most of the time so it should be 407.67m per loop. In theory it is 407.67 x 23 = 9,307.41+ 250 = 9,626.41. That’s off by 373.59m or 3.7%.

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