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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 Ok. Thanks for this.

      I will have to escalate this. I would like to know how much this can happen in other modes.

      Btw what sport mode do you use? PErhaps there is different bahaviour per sport mode?

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

      surfboomerangS 1 Reply Last reply Reply Quote 0
      • surfboomerangS Offline
        surfboomerang @Dimitrios Kanellopoulos
        last edited by surfboomerang

        @Dimitrios-Kanellopoulos This time I used the sports mode “Other”, but I have seen this behaviour also with “Windsurfing”.

        I checked a move that I did yesterday. I selected the profile “Running” and had GALILEO on.
        Capture3.PNG

        So it looks like it happens on all sport modes, but the spikes (and dips) are greater for sports with higher speeds

        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 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

                    surfboomerangS 1 Reply Last reply Reply Quote 0
                    • freeheelerF Offline
                      freeheeler
                      last edited by

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

                      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

                          surfboomerangS 2 Replies Last reply Reply Quote 1
                          • surfboomerangS Offline
                            surfboomerang @Dimitrios Kanellopoulos
                            last edited by

                            @Dimitrios-Kanellopoulos That would be great! Thanks!

                            Suunto Vertical Titanium Solar
                            OnePlus Nord 4

                            1 Reply Last reply Reply Quote 1
                            • freeheelerF Offline
                              freeheeler
                              last edited by

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

                              living sideways

                              1 Reply Last reply Reply Quote 0
                              • 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… 👎

                                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

                                freeheelerF 1 Reply Last reply Reply Quote 2
                                • 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

                                  Dimitrios KanellopoulosD 1 Reply Last reply Reply Quote 0
                                  • 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

                                    freeheelerF 1 Reply Last reply Reply Quote 1
                                    • freeheelerF Offline
                                      freeheeler @Dimitrios Kanellopoulos
                                      last edited by

                                      @Dimitrios-Kanellopoulos
                                      and within SA it is correct I assume 👍

                                      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: “By distance/time” or “Recorded by device”

                                          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 “Recorded by device” 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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