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    Fused track in extreme conditions?

    Scheduled Pinned Locked Moved Suunto 9
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    • H Offline
      halajos Bronze Member
      last edited by halajos

      The coming weekend I’ll run a race, which has a specialty of going into a cave for 2 km. I’ll be using performance mode. Will fused track be activated in this scenario? What kind of track to expect between the points of losing GPS signal and its recovery?
      a) an approximation of the track?
      b) a straight line?
      c) possibly weird artifacts?

      Does any of you have such experience with the S9B?

      isaziI Brad_OlwinB DMytroD L EgikaE 5 Replies Last reply Reply Quote 1
      • isaziI Online
        isazi Moderator @halajos
        last edited by

        @halajos I’ve got no experience, but I’d like if you shared the results with us after.

        Watch: Suunto Vertical Ti

        Blog: isazi's home

        H 1 Reply Last reply Reply Quote 1
        • H Offline
          halajos Bronze Member @isazi
          last edited by

          @isazi I will 😉

          1 Reply Last reply Reply Quote 1
          • Brad_OlwinB Online
            Brad_Olwin Moderator @halajos
            last edited by

            @halajos Fused Track will not activate but the watch should use the information it has gathered on your running to approximate distance and pace.

            Vector/T6c/Ambit 3 Peak/S5 Copper/S3/S7 Ti/S9 baro Ti/S9P Ti/S9PP Ti/Vertical Ti/Race Ti/RaceS/Ocean/Wing

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

              @halajos sorry for off-topic, is this cave by chance in Europe?

              H 1 Reply Last reply Reply Quote 0
              • L Online
                Likarnik Bronze Member @halajos
                last edited by

                @halajos straightl line and probably it will count twice the distance. At least it does for me when I run through a tunnel. Except if you have old firmware before March 2021, it worker ok before 🙂

                H 1 Reply Last reply Reply Quote 0
                • freeheelerF Offline
                  freeheeler @Brad_Olwin
                  last edited by

                  @Brad_Olwin
                  would it help if @halajos switch battery mode just before the cave and switch back after?
                  …if so: I would practice the button “workflow” so you can concentrate on the trail and don’t look so much while pressing

                  living sideways

                  1 Reply Last reply Reply Quote 2
                  • H Offline
                    halajos Bronze Member @DMytro
                    last edited by

                    @DMytro yes, in Hungary

                    M 1 Reply Last reply Reply Quote 1
                    • H Offline
                      halajos Bronze Member @Likarnik
                      last edited by

                      @Likarnik double-counting is bad, I’d like to avoid. Probably could avoid it by using 'snap to route. I’ve got the track, which has a straight line between the two ends of the cave segment.

                      1 Reply Last reply Reply Quote 0
                      • EgikaE Offline
                        Egika Platinum Member @halajos
                        last edited by

                        @halajos usually you would get a straight line between last and first position with GPS reception. Due to reflections there might be some artifacts (mis-calculations) noone can predict.

                        t6, S6, Elementum Terra, Ambit 3 Sapphire, Spartan Ultra Copper, Traverse Alpha, S7 Graphite LE, S9B Ambassador, S9P Granite Blue Titanium, S9PP Titanium Sand, Vertical All Black, Race Titanium Charcoal,
                        Race S All Black - TI Canary - Titanium Courtney

                        1 Reply Last reply Reply Quote 0
                        • M Offline
                          marcrie Bronze Member @halajos
                          last edited by

                          @halajos but not in Balatonfüred on Sunday???

                          H 1 Reply Last reply Reply Quote 0
                          • H Offline
                            halajos Bronze Member @marcrie
                            last edited by

                            @marcrie no, starting from Aggtelek on Saturday

                            1 Reply Last reply Reply Quote 0
                            • H Offline
                              halajos Bronze Member
                              last edited by halajos

                              @isazi the watch produced a straight line between the two ends of the cave and accounted the distance between the two points twice as @Likarnik suspected.
                              The ‘replay’ of the track in SA looks like this: The time difference between the last point before GPS signal was lost and the first point when it got recovered is only a few seconds (the cave section was about 2km, I’m not that fast 😀). When GPS signal recovered the watch added the distance between the two points, which is 2km, then it fast-forwarded to the correct time and added the 2km accumulated (probably taken from accelerometer data) during that period again.

                              EgikaE 1 Reply Last reply Reply Quote 1
                              • EgikaE Offline
                                Egika Platinum Member @halajos
                                last edited by

                                @halajos uh? I thought this “tunnel double distance bug had been fixed some time ago?” are you using the latest FW?

                                @Dimitrios-Kanellopoulos

                                t6, S6, Elementum Terra, Ambit 3 Sapphire, Spartan Ultra Copper, Traverse Alpha, S7 Graphite LE, S9B Ambassador, S9P Granite Blue Titanium, S9PP Titanium Sand, Vertical All Black, Race Titanium Charcoal,
                                Race S All Black - TI Canary - Titanium Courtney

                                H 1 Reply Last reply Reply Quote 0
                                • H Offline
                                  halajos Bronze Member @Egika
                                  last edited by

                                  @Egika yes, my S9B is up to date

                                  1 Reply Last reply Reply Quote 0
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