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    GPS accuracy - track and field

    Scheduled Pinned Locked Moved Suunto 9
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    • 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.

      Suunto Vertical Titanium Solar
      OnePlus Nord 4

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      • isaziI Offline
        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 šŸ‘Œ

          Community Manager / Admin @Suunto
          Creator of Quantified-Self.io
          youtube.com/c/dimitrioskanellopoulos
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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 Offline
              isazi Moderator @DMytro
              last edited by

              @Гима-Š¼ŠµŠ»ŃŒŠ½ŠøŃ‡ŠµŠ½ŠŗŠ¾ 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 ā€œTrack and Fieldā€ 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…

                  0d745b27-bc2d-4537-b3ba-1ad031f51315-image.png

                  Suunto S9 Baro Titanium, Ironman l.e.
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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.

                    Community Manager / Admin @Suunto
                    Creator of Quantified-Self.io
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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 ā€œrunningā€ 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.

                            Tu comunidad Suunto en Telegram: https://t.me/suuntocommunity (spanish)

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                            • 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 ā€˜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 Offline
                                  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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                                    • zhang965Z Offline
                                      zhang965
                                      last edited by zhang965

                                      Yo Kid, get a footpod

                                      Gps cannot get that precision,

                                      Winners Wear Winners

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                                      • zhang965Z Offline
                                        zhang965 @zhang965
                                        last edited by

                                        @zhang965 said in GPS accuracy - track and field:

                                        Yo Kid, get a footpod

                                        Gps cannot get that precision,

                                        Let me explain something about the GPS,

                                        There are lots of factors which could be affect the GPS accuracy.
                                        i’ve got different distance/speed in the same field with 8 hours apart.

                                        (and sometimes the field is not parfait 400m )

                                        secondly, coros might have an improved algorithm for field, which you can set your tack length before running.

                                        Your experience is the SUNNTO GPS’s distance is more than the real distance,
                                        but some of us, who get the experience where the GPS distance is less than the real distance.

                                        https://forum.suunto.com/topic/3626/suunto-9-with-the-recent-gps-firmware-was-among-least-accurate-gps-watches-in-today-s-25k-trail-race

                                        So the solution is obviously,
                                        Buy a footpod such as stryd to get the precious distance with your suunto 9,
                                        Buy a coros for the tack sport, if you consider it’s GPS is better.

                                        Winners Wear Winners

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                                        • BulkanB Offline
                                          Bulkan Moderator
                                          last edited by

                                          Stryd is your new friend, cheaper than the Coros and I think the community is not like this one but I could be wrong.

                                          Garmin has track, even you can choose the line you are running.

                                          Tu comunidad Suunto en Telegram: https://t.me/suuntocommunity (spanish)

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                                          • T Offline
                                            TM0702
                                            last edited by

                                            So yesterday I ran another 5k at the same sports ground. This time I synchronized the Suunto 9 with my phone on site first before running.

                                            I ran 11.5 laps at lane 4, that’s 11.5 * 423m = 4,864.5m, off by 135.5m, or 2.7%.

                                            WhatsApp Image 2021-03-28 at 16.49.05.jpeg

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