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    Suunto 9 Highly inaccurate speed readings

    Scheduled Pinned Locked Moved Suunto 9
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    • Dimitrios KanellopoulosD Offline
      Dimitrios Kanellopoulos Community Manager @surfboomerang
      last edited by

      @surfboomerang what files are you reading ?

      Community Manager / Admin @Suunto
      Creator of Quantified-Self.io
      youtube.com/c/dimitrioskanellopoulos
      https://instagram.com/dimitrioskanellopoulos
      https://www.strava.com/athletes/7586105

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      • surfboomerangS Offline
        surfboomerang
        last edited by surfboomerang

        @Dimitrios-Kanellopoulos The files above are GPX exports from Runalyze.

        Suunto Vertical Titanium Solar
        OnePlus Nord 4

        Dimitrios KanellopoulosD 1 Reply Last reply Reply Quote 0
        • Dimitrios KanellopoulosD Offline
          Dimitrios Kanellopoulos Community Manager @surfboomerang
          last edited by

          @surfboomerang I would prefer to look at the fit file.

          Do you have some SA link for me of the files with these issues ?

          Community Manager / Admin @Suunto
          Creator of Quantified-Self.io
          youtube.com/c/dimitrioskanellopoulos
          https://instagram.com/dimitrioskanellopoulos
          https://www.strava.com/athletes/7586105

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          • surfboomerangS Offline
            surfboomerang @Dimitrios Kanellopoulos
            last edited by surfboomerang

            @Dimitrios-Kanellopoulos I sent you the links in a pm

            Suunto Vertical Titanium Solar
            OnePlus Nord 4

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            • surfboomerangS Offline
              surfboomerang
              last edited by

              <Frustration mode>

              Can someone tell me if this issue is resolved in the upcoming firmware update?
              I did a windsurf session today on a rainy day and I had GPS+Galileo on. The picture below shows a segment of a track that is almost 100 km like this.
              As you can see it is a horrible recording of speed!!! 😫 😫

              Annotation 2019-10-06 165047.png
              </Frustration mode>

              Suunto Vertical Titanium Solar
              OnePlus Nord 4

              freeheelerF Dimitrios KanellopoulosD 2 Replies Last reply Reply Quote 1
              • freeheelerF Offline
                freeheeler @surfboomerang
                last edited by freeheeler

                @surfboomerang
                I just compared my recordings from a3p to s9b within SA… s9b indeed gives a spikier graph… strange!

                a3p: https://app.suunto.com/move/skiingone/5d836edd58e211b5ae86859e

                s9b:
                https://app.suunto.com/move/skiingone/5d921b3c58e2111193c1ec1c

                living sideways

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                • freeheelerF Offline
                  freeheeler
                  last edited by

                  and just noticed that the exported link displays my highest point of 948m as ascent… šŸ‘Ž

                  living sideways

                  fejkerF 1 Reply Last reply Reply Quote 0
                  • surfboomerangS Offline
                    surfboomerang @freeheeler
                    last edited by

                    @TELE-HO I haven’t seen those spikes with my old a3p either. Only with my s9 baro.

                    Suunto Vertical Titanium Solar
                    OnePlus Nord 4

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

                      @surfboomerang should be. Wait for end Oct

                      Community Manager / Admin @Suunto
                      Creator of Quantified-Self.io
                      youtube.com/c/dimitrioskanellopoulos
                      https://instagram.com/dimitrioskanellopoulos
                      https://www.strava.com/athletes/7586105

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                      • surfboomerangS Offline
                        surfboomerang @Dimitrios Kanellopoulos
                        last edited by

                        @Dimitrios-Kanellopoulos That would be great! Thanks!

                        Suunto Vertical Titanium Solar
                        OnePlus Nord 4

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                        • freeheelerF Offline
                          freeheeler
                          last edited by

                          @solid_dd
                          it’s like a good wine, it takes time but then it’s great ☺

                          living sideways

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                          • fejkerF Offline
                            fejker Gold Members @freeheeler
                            last edited by

                            @TELE-HO said in Suunto 9 Highly inaccurate speed readings:

                            and just noticed that the exported link displays my highest point of 948m as ascent… šŸ‘Ž

                            It has been like this since I can remember and I have reported this many times and nothing has happened since at least January 2019 … and I bet you all my tech gear that it has been like this longer than that. Here we are nine months later and still nothing.

                            SHUT UP LEGS!
                            -Jens Voigt

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                            • freeheelerF Offline
                              freeheeler @fejker
                              last edited by

                              @fejker
                              I’m glad it’s on the export file only that I actually don’t need… it’s correct for Strava…
                              the pain is: when @Dimitrios-Kanellopoulos wants to see our files and asks for the shared link… he does not see what we see…
                              I noticed the wrong total ascent but more mistakes could be hidden anywhere…

                              living sideways

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

                                @TELE-HO I dont look at the link data. As @fejker mentioned this is pretty much an old issue.

                                With the link you provide I open the activity with the Suunto app

                                Community Manager / Admin @Suunto
                                Creator of Quantified-Self.io
                                youtube.com/c/dimitrioskanellopoulos
                                https://instagram.com/dimitrioskanellopoulos
                                https://www.strava.com/athletes/7586105

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                                • freeheelerF Offline
                                  freeheeler @Dimitrios Kanellopoulos
                                  last edited by

                                  @Dimitrios-Kanellopoulos
                                  and within SA it is correct I assume šŸ‘

                                  living sideways

                                  Dimitrios KanellopoulosD 1 Reply Last reply Reply Quote 0
                                  • Dimitrios KanellopoulosD Offline
                                    Dimitrios Kanellopoulos Community Manager @freeheeler
                                    last edited by

                                    @TELE-HO yes correct

                                    Community Manager / Admin @Suunto
                                    Creator of Quantified-Self.io
                                    youtube.com/c/dimitrioskanellopoulos
                                    https://instagram.com/dimitrioskanellopoulos
                                    https://www.strava.com/athletes/7586105

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                                    • surfboomerangS Offline
                                      surfboomerang @Dimitrios Kanellopoulos
                                      last edited by surfboomerang

                                      @Dimitrios-Kanellopoulos Just a small update/test after the latest firmware update:

                                      I exported the FIT files of two moves from Runalyze and used GPXSee to analyze the fit files. The tool has 2 ways to calculate the speed: ā€œBy distance/timeā€ or ā€œRecorded by deviceā€

                                      Unfortunately the speed with GPS only didn’t improved very much after the latest firmware update if I calculate the speed by distance/time:
                                      1.png

                                      If I calculate the speed by ā€œRecorded by deviceā€ it started to look a bit better:
                                      2.png

                                      The move with GPS+GLONASS however looks much cleaner if the speed is recorded by distance/time. Especially the second half
                                      3.png

                                      Is this because of a better/stronger signal if I combine GPS+GLONASS?

                                      So it looks like the firmware update solved the speed wobble a little bit, but not quite like the Ambit 3 Peak. The speed spikes are also visible on the watch screen during the move, so it isn’t only the FIT file.

                                      Suunto Vertical Titanium Solar
                                      OnePlus Nord 4

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