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    Firmware Rollback - Firmware with best GPS

    Scheduled Pinned Locked Moved Suunto 9
    37 Posts 12 Posters 2.0k Views 11 Watching
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    • surfboomerangS Offline
      surfboomerang @Guest
      last edited by

      @g287-sf said in Firmware Rollback - Firmware with best GPS:

      @brad_olwin My 2 GPS tracks looks similar. It was just altitude who was bad.
      For me 10 meters difference for GPS is acceptable when we know gps precision is around 3.3 meters. More is limit for outdoor device because it can cause orientation error.

      Keep in mind that the GPS precision most people talk about is the horizontal precision. Vertical is usually much less precise. That is where the barometer comes to the rescue.
      To be honest, if calibrated correctly, the Suunto 9 baro is pretty accurate in altitude to me.

      Suunto Vertical Titanium Solar
      OnePlus Nord 4

      MRonyM 1 Reply Last reply Reply Quote 4
      • freeheelerF Offline
        freeheeler @Guest
        last edited by

        @g287-sf
        I have set my watch to GPS+QZSS after playing a bit with the other systems, too. I left it as mentioned and never touched it or thought about it. Some days it’s better, some days it’s worse. But always in regards to the track itself. I think altitude shouldn’t be an issue as you’ve got the baro, right?

        @Brad_Olwin
        you’re right, the true comparison is only possible with your cyborg tests like you do with many watches on one arm 😉 👍
        but I think users get a general feeling if their devices are more precise, react quicker etc… it is more of an impression thing I guess.

        living sideways

        Brad_OlwinB 1 Reply Last reply Reply Quote 1
        • Brad_OlwinB Offline
          Brad_Olwin Moderator @freeheeler
          last edited by

          @freeheeler said in Firmware Rollback - Firmware with best GPS:

          @g287-sf
          I have set my watch to GPS+QZSS after playing a bit with the other systems, too. I left it as mentioned and never touched it or thought about it. Some days it’s better, some days it’s worse. But always in regards to the track itself. I think altitude shouldn’t be an issue as you’ve got the baro, right?

          @Brad_Olwin
          you’re right, the true comparison is only possible with your cyborg tests like you do with many watches on one arm 😉 👍
          but I think users get a general feeling if their devices are more precise, react quicker etc… it is more of an impression thing I guess.

          It is even worse than that! I have a wheel and a measured route to test how precise the GPS is. I always run/walk on the path the wheel was used and I have multiple wheel measurements to get a reliable distance. I have no idea what the neighbors think when they see me walking with a a wheel to measure distance:)

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

          ? stromdiddilyS freeheelerF 3 Replies Last reply Reply Quote 5
          • ? Offline
            A Former User @Brad_Olwin
            last edited by

            @brad_olwin if you speak French you should follow “Montre Cardio GPS” on YouTube or even is blog. I run with many watch at the same time do plenty test. You should like it.

            1 Reply Last reply Reply Quote 2
            • stromdiddilyS Offline
              stromdiddily Gold Members @Brad_Olwin
              last edited by

              @brad_olwin can’t be any worse than what they think watching you run with 7 different watches on 😄 😄

              Always carry a flaggon of whiskey for snakebite; and furthermore, always carry a small snake.

              User of pretty much every watch since the Ambit 3 Peak. Now back in the family w SV :)

              1 Reply Last reply Reply Quote 2
              • freeheelerF Offline
                freeheeler @Brad_Olwin
                last edited by

                @brad_olwin
                too old for a stroller, too young for a rollator 😜

                living sideways

                1 Reply Last reply Reply Quote 1
                • MRonyM Offline
                  MRony @surfboomerang
                  last edited by MRony

                  @surfboomerang Hello, I also have the topic of GPS measurement (Baro 9) in the vertical segment! Sunny weather, on different days and different time (same tour and new tours), deviations never less than 9m! on my last 15 tours there were about 2 peaks where I was at 3m deviation! I am not satisfied with these values! BG

                  DMytroD surfboomerangS Mff73M 3 Replies Last reply Reply Quote 0
                  • DMytroD Offline
                    DMytro @MRony
                    last edited by

                    @mrony it’s not gps but barometer that gives you this values. Difference of 3m is totally tollerable for s9b if I know correctly.

                    MRonyM 1 Reply Last reply Reply Quote 0
                    • MRonyM Offline
                      MRony @DMytro
                      last edited by

                      @дима-мельниченко +|-3m ok, but Not +9m and More at every Tour!

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

                        @mrony I would say it’s ok as well. But I have a non baro version, so others could validate your conserns better. For me same peak may be +/- 20m ( and it’s still ok in my opinion).

                        1 Reply Last reply Reply Quote 0
                        • zhang965Z Offline
                          zhang965
                          last edited by

                          For me the last firmware is not getting better.
                          Screenshot_20210214-213508.png

                          Winners Wear Winners

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

                            @mrony do you have the Baro version of a watch?
                            Also I noticed sunny weather is not a guarantee for good GPS reception.

                            Suunto Vertical Titanium Solar
                            OnePlus Nord 4

                            1 Reply Last reply Reply Quote 0
                            • MRonyM Offline
                              MRony
                              last edited by

                              @surfboomerang s9 baro

                              1 Reply Last reply Reply Quote 0
                              • Mff73M Online
                                Mff73 @MRony
                                last edited by

                                @mrony said in Firmware Rollback - Firmware with best GPS:

                                @surfboomerang Hello, I also have the topic of GPS measurement (Baro 9) in the vertical segment! Sunny weather, on different days and different time (same tour and new tours), deviations never less than 9m! on my last 15 tours there were about 2 peaks where I was at 3m deviation! I am not satisfied with these values! BG

                                does the watch records always the same altitude for the same peaks ? and are you sure of those peaks real altitude ?
                                also consider that altitude is a matter of reference
                                Not to say you are wrong, but to more understand. And with no data to look at, it is difficult to debate.

                                Suunto Spartan Ultra (since 2016) FW: 2.8.24 (retired)
                                Suunto Vertical all black
                                Wife : S9PP
                                SA: Always the latest beta :)
                                Android 13, Galaxy S205G

                                surfboomerangS 1 Reply Last reply Reply Quote 1
                                • surfboomerangS Offline
                                  surfboomerang @Mff73
                                  last edited by

                                  @MRony Like @Mff73 said.
                                  Some examples would be helpful then.

                                  Suunto Vertical Titanium Solar
                                  OnePlus Nord 4

                                  MRonyM 1 Reply Last reply Reply Quote 0
                                  • MRonyM Offline
                                    MRony @surfboomerang
                                    last edited by

                                    @surfboomerang IMG_E5535 (Large).JPG IMG_E5534 (Large).JPG IMG_E5533 (Large).JPG IMG_E5532 (Large).JPG IMG_E5531 (Large).JPG IMG_E5530 (Large).JPG IMG_E5529 (Large).JPG IMG_E5537 (Large).JPG

                                    Mff73M surfboomerangS 2 Replies Last reply Reply Quote 0
                                    • Mff73M Online
                                      Mff73 @MRony
                                      last edited by

                                      @mrony
                                      do you have already tried to clean your baro sensor ?
                                      have you tried the fridge test ? https://forum.suunto.com/topic/3519/alti-baro-fridge-test

                                      Suunto Spartan Ultra (since 2016) FW: 2.8.24 (retired)
                                      Suunto Vertical all black
                                      Wife : S9PP
                                      SA: Always the latest beta :)
                                      Android 13, Galaxy S205G

                                      1 Reply Last reply Reply Quote 2
                                      • surfboomerangS Offline
                                        surfboomerang @MRony
                                        last edited by

                                        @mrony
                                        Try the suggestions of @Mff73.

                                        To be honest, I think the numbers you see are well within the margin.
                                        I mean elevation lines on maps aren’t 100% accurate as well as I learned the hard way: https://forum.suunto.com/topic/5234/route-altitude-bug?_=1613401264400

                                        Even the same map provider isn’t consistent
                                        5a6ac98f-a031-478c-bbfb-1667d9dc3279-image.png

                                        Furthermore a 2-3m difference can almost be achieved by putting the watch on the ground or waving your arm in the air. So unless you have your watch on the exact same spot from the official measurement it’s really hard to compare.

                                        Suunto Vertical Titanium Solar
                                        OnePlus Nord 4

                                        MRonyM 1 Reply Last reply Reply Quote 5
                                        • MRonyM Offline
                                          MRony @surfboomerang
                                          last edited by

                                          @surfboomerang hello, peaks usually have the correct elevation on the maps. the app “peakhunter” confirms this. a deviation of about 3m would be ok, but I can’t understand that this is not possible on a single tour!

                                          Brad_OlwinB 1 Reply Last reply Reply Quote 0
                                          • Brad_OlwinB Offline
                                            Brad_Olwin Moderator @MRony
                                            last edited by

                                            @mrony said in Firmware Rollback - Firmware with best GPS:

                                            @surfboomerang hello, peaks usually have the correct elevation on the maps. the app “peakhunter” confirms this. a deviation of about 3m would be ok, but I can’t understand that this is not possible on a single tour!

                                            This is possible because the watch is assessing elevation using a barometer that is pressure sensitive and attempting to correct this with a GPS measurement. Our estimates of peak heights are simply not exact. For example, Colorado, USA just revised its estimates of peak elevations with a new reference standard and we are going to have one less 4267m (14,000 foot) peak. So the accuracy you are seeking is not in the reference data you are referring to as @surfboomerang eloquently stated.
                                            Second, changes in barometric pressure will affect the elevation even with GPS correction, this can easily occur. Third, depending on where the watch is placed and how you are moving, this will affect elevation measurements and there are algorithms built in to deal with this. The watch is not a precision elevation measurement instrument.

                                            IMHO there is nothing wrong with your watch or the elevation values you are getting.

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

                                            ? 1 Reply Last reply Reply Quote 4
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