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    GPS accuracy - track and field

    Scheduled Pinned Locked Moved Suunto 9
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    • 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…

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

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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
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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

                S 1 Reply Last reply Reply Quote 0
                • 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)

                    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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                            • zhang965Z Offline
                              zhang965
                              last edited by zhang965

                              Yo Kid, get a footpod

                              Gps cannot get that precision,

                              Winners Wear Winners

                              zhang965Z 1 Reply Last reply Reply Quote 4
                              • 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.

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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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                                    • L Offline
                                      Likarnik Bronze Member
                                      last edited by Likarnik

                                      Digging up this topic as I started running on track while waiting for my daughter 🙂

                                      I run on a smaller track, 250m and use track and field sport mode. I’m wearing my watch on left hand. I think my S9P is underestimating my pace and thus distance. Last time I changed direction in the middle of my run, and pace was quite higher at the same effort (HR). Change was from counter clockwise (watch on inside) to clockwise (watch on outside). Can this be the difference? I’ll try next week with watch on right hand… I assume 400m track would give better results as there is bigger radius and longer straight line. I know foot pod is the solution, but anyway…

                                      Here, I changed direction at about 20min mark. And yes, there is HR drop just before 15min (H10, it’s not so accurate lately). Red is HR, light blue is pace.

                                      567a44d8-d990-4f7d-b427-b2e0d4c02cce-image.png

                                      And why is there speed instead of pace in SA? Is that common for track running?

                                      suzzloS 1 Reply Last reply Reply Quote 1
                                      • suzzloS Offline
                                        suzzlo Moderator @Likarnik
                                        last edited by

                                        @likarnik said in GPS accuracy - track and field:

                                        Last time I changed direction in the middle of my run

                                        You did in the right, way, changing direction is very recommended. Or just but a footpod

                                        BR

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