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Suunto 9 FusedAlti not remembered after activity

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  • D Offline
    Dimitrios Kanellopoulos Community Manager @freeheeler
    last edited by 5 Jan 2021, 19:11

    @TELE-HO fused alti does not work only in the first 15 minutes. This is chnages quite some time ago. It will try many times and additionally constantly correcting the altitude

    Community Manager / Admin @Suunto
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    • S Offline
      surfboomerang @freeheeler
      last edited by 5 Jan 2021, 19:12

      @TELE-HO I have never seen it correcting it from the start. Sometimes it takes 20-25 minutes to kick in and then I see the altitude gradually being corrected in the next few minutes.But the beginning of the activity still contains the wrong altitude.

      Suunto Vertical Titanium Solar
      OnePlus Nord 4

      D 1 Reply Last reply 5 Jan 2021, 19:14 Reply Quote 0
      • D Offline
        Dimitrios Kanellopoulos Community Manager @surfboomerang
        last edited by 5 Jan 2021, 19:14

        @surfboomerang you cannot see the correction of the altitude.

        There is the initial offset adjustment that you don’t see and after that during ie if the pressure chnages and it does not align with the altitude then it will gradually correct it.

        Note: -+10-20meters will be corrected slowly not fast during the activity not on offset.

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

        S 1 Reply Last reply 5 Jan 2021, 19:16 Reply Quote 1
        • D Offline
          Dimitrios Kanellopoulos Community Manager @freeheeler
          last edited by 5 Jan 2021, 19:15

          @TELE-HO in your specific example the correction happened when you existed the store most probably. Should not happen so much , and mostly it trusted the temperature.

          The fused alti is not designed so well for indoor and floors etc when gps is on (no indoor activity)

          Alternatively you could do multisport to indoor move and would help.

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

          F 1 Reply Last reply 5 Jan 2021, 19:19 Reply Quote 0
          • S Offline
            surfboomerang @Dimitrios Kanellopoulos
            last edited by 5 Jan 2021, 19:16

            @Dimitrios-Kanellopoulos
            you mean this:
            2a3914e6-7e0b-44f4-8758-b8753ee37a0b-image.png

            The track should be flat, but it is slowly corrected to (almost) the right altitude in the end.

            Suunto Vertical Titanium Solar
            OnePlus Nord 4

            D 1 Reply Last reply 5 Jan 2021, 19:22 Reply Quote 0
            • F Offline
              freeheeler @Dimitrios Kanellopoulos
              last edited by 5 Jan 2021, 19:19

              @Dimitrios-Kanellopoulos
              you mean it still wants to correct, even when paused?

              living sideways

              D 1 Reply Last reply 5 Jan 2021, 19:22 Reply Quote 0
              • D Offline
                Dimitrios Kanellopoulos Community Manager @surfboomerang
                last edited by 5 Jan 2021, 19:22

                @surfboomerang yes but even if you had the altitude at start at 1000m the same chart could happen.

                At start it would calibrate immediately to let’s say 10meters and slowly go to 0. So initial calibration error would be 10meters (just en example)

                Also the flat at NL (I have sometimes same charts) is not always so flat (or everywhere).

                For example my house is at -10 while at 5km I am at 0 (sea).

                However this is going to be improved for those 10meter variations. That line will go correct much faster for flat runs.

                10meters is very small error but it shows well if you do not live in a mountains area.

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

                F 1 Reply Last reply 5 Jan 2021, 19:25 Reply Quote 1
                • D Offline
                  Dimitrios Kanellopoulos Community Manager @freeheeler
                  last edited by Dimitrios Kanellopoulos 1 May 2021, 19:23 5 Jan 2021, 19:22

                  @TELE-HO correct. Also in the prestart screen it will do it. Sometimes even if you just turn on the gps for 1min if it can.

                  Prestart is when you see the start and wait for the gps lock

                  Community Manager / Admin @Suunto
                  Creator of Quantified-Self.io
                  youtube.com/c/dimitrioskanellopoulos
                  https://instagram.com/dimitrioskanellopoulos
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                  • F Offline
                    freeheeler @Dimitrios Kanellopoulos
                    last edited by 5 Jan 2021, 19:23

                    @Dimitrios-Kanellopoulos said in Suunto 9 FusedAlti not remembered after activity:

                    temperature influence

                    this is temperature influence, alright. I’ve learned something new.
                    Then we also need to be aware of changes e.g. when we start a hike with a shirt in the cold and put on a warm jacket and gloves that heats up the watch body and sensor, right?
                    Screenshot_20210105-202055.png

                    living sideways

                    D 1 Reply Last reply 5 Jan 2021, 19:35 Reply Quote 0
                    • F Offline
                      freeheeler @Dimitrios Kanellopoulos
                      last edited by 5 Jan 2021, 19:25

                      @Dimitrios-Kanellopoulos said in Suunto 9 FusedAlti not remembered after activity:

                      10meters is very small error but it shows well if you do not live in a mountains area

                      true! don’t get me wrong, I just want to understand and learn since I observed this behaviour

                      living sideways

                      1 Reply Last reply Reply Quote 2
                      • D Offline
                        Dimitrios Kanellopoulos Community Manager @freeheeler
                        last edited by 5 Jan 2021, 19:35

                        @TELE-HO temperature will influence more when there is no pressure change or if you are “static”.

                        No it won’t influence asap.

                        You should not worry about it at all. It need sharp change.

                        However, if your sensor is dirty yes it will. Not because of the algo or the component but rather of the debris that will do a systolation or diastolation and move the component (sensor).

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

                        F 1 Reply Last reply 5 Jan 2021, 19:37 Reply Quote 1
                        • F Offline
                          freeheeler @Dimitrios Kanellopoulos
                          last edited by 5 Jan 2021, 19:37

                          @Dimitrios-Kanellopoulos
                          interesting stuff and nice to know 🙂
                          in general: we shouldn’t worry too much.

                          living sideways

                          D 1 Reply Last reply 5 Jan 2021, 20:14 Reply Quote 0
                          • D Offline
                            Dimitrios Kanellopoulos Community Manager @freeheeler
                            last edited by 5 Jan 2021, 20:14

                            @TELE-HO about temp yes. Only if your sensor is bad. In general you should also not worry about a watch and a few meters difference if it works ok mostly. That is a personal advice.

                            Community Manager / Admin @Suunto
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                            youtube.com/c/dimitrioskanellopoulos
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                            • S Offline
                              stromdiddily Gold Members @Dimitrios Kanellopoulos
                              last edited by 5 Jan 2021, 20:26

                              @Dimitrios-Kanellopoulos Also in the prestart screen it will do it

                              This is super interesting. So if I wanted to get the best altitude reading I should get to the pre-start screen outside OR at least wait a bit before starting my run?

                              Usually I will start it inside my home to get a HR lock, then head outside to tie shoes and get on with it.

                              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 :)

                              I D 2 Replies Last reply 5 Jan 2021, 20:30 Reply Quote 0
                              • I Offline
                                isazi Moderator @stromdiddily
                                last edited by 5 Jan 2021, 20:30

                                @stromdiddily said in Suunto 9 FusedAlti not remembered after activity:

                                This is super interesting. So if I wanted to get the best altitude reading I should get to the pre-start screen outside OR at least wait a bit before starting my run?

                                Yes 🙂

                                Watch: Suunto Vertical Ti

                                Blog: isazi's home

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                                • D Offline
                                  Dimitrios Kanellopoulos Community Manager @stromdiddily
                                  last edited by 5 Jan 2021, 20:31

                                  @stromdiddily explain to me what benefit the <10 meters precision will give you during your activity and I will answer. 🤣😀(Joke but also a bit interesting question for my understanding )

                                  Ok i ll answer: yes you can stay static in open space and it will be better. Be that be in prestart screen ? During a pause ? During the activity ? It doesn’t matter anymore. It will do it perhaps better due to being static and facing the sky not wobbling at the side of your body with a great shadow of your body covering 50% of the horizon.

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

                                  F S 2 Replies Last reply 5 Jan 2021, 20:53 Reply Quote 1
                                  • F Offline
                                    Fenr1r @Dimitrios Kanellopoulos
                                    last edited by Fenr1r 1 May 2021, 20:59 5 Jan 2021, 20:53

                                    @Dimitrios-Kanellopoulos said in Suunto 9 FusedAlti not remembered after activity:

                                    explain to me what benefit the <10 meters precision will give you during your activity … Joke but also a bit interesting question for my understanding

                                    OK, for me, rather than @stromdiddily:

                                    Case 1:
                                    Imagine you are in a place where there are no tracks but identifiable “summits”. A plateau, or moorland, say.
                                    Imagine reliably-surveyed maps have identified and differentiated points of elevation to within that 10m precision. In fact, down to 0.3m precision.
                                    Imagine you do not want to wait for the watch to display your location (and are running another S+ than SAFE) in coordinates and relatively slowly locate yourself on the map that way.
                                    Imagine visibility is this (high summer, 11:15, around 30m to the lumpy silhouette):
                                    Fur B.JPG
                                    And you don’t recognise those particular rocks but know they’re at the top of a hill. Your altitude (and your course) give you your precise location.

                                    If there are different heights, the top of whatever rise you’re on is likely “HIll 632” or whatever. NOT “Hill 633”. The less visually dramatic equivalent of a peak. That is a fast enough location fix that you don’t have to break stride. Your altitude (and your course) give you your precise location.

                                    Case 2:
                                    Following contour lines to bypass a cliff, watercourse or other obstructive feature otherwise obscured from view. With an accurately-surveyed map, the altitude precision saves wasting energy when you need to conserve it.

                                    D 1 Reply Last reply 5 Jan 2021, 21:07 Reply Quote 1
                                    • D Offline
                                      Dimitrios Kanellopoulos Community Manager @Fenr1r
                                      last edited by 5 Jan 2021, 21:07

                                      @Fenr1r why not then just gps position ? What am I missing?

                                      He refers to start position altitude if I understood right.

                                      If we are going to say it’s like a high store building were you walk on a balcony and you need to detect which floor you should be (if I understand correctly ) imo the -±2, 3-10meter error won’t get you so safe. There I would not try to trust my watch to be honest nor any gps based device. But I like the conversation 😀.

                                      GOPR0967_1548003468520_high.jpg

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

                                      F 1 Reply Last reply 5 Jan 2021, 21:19 Reply Quote 2
                                      • F Offline
                                        Fenr1r @Dimitrios Kanellopoulos
                                        last edited by Fenr1r 1 May 2021, 21:23 5 Jan 2021, 21:19

                                        @Dimitrios-Kanellopoulos said in Suunto 9 FusedAlti not remembered after activity:

                                        @Fenr1r why not then just gps position ? What am I missing?

                                        Time.

                                        How many digits do you have to keep in your head to differentiate, say, 3 possible coordinate locations vs 3 max elevations? Think about it. X+Y, and those coordinates only start to vary at the end. Without a map on the watch (where this wouldn’t be a discussion) most people would have to double check those coordinates with the map each time. Having waited for the watch to produce them, or leaving it stuck on “Find Location” screen, providing no other info.

                                        With 3 sites, even working in feet, it’s hard to go beyond 5 digits (each) on Earth. And the watch can still be providing whatever other goodies it can. Possibly just direction. Or time.

                                        There I would not try to trust my watch to be honest nor any gps based device.

                                        You might remember I wanted to include manual input in the Alti Fusion. This is why. (At user risk, of course.) I’m not leaving it up to Skynet.

                                        D 1 Reply Last reply 5 Jan 2021, 21:25 Reply Quote 2
                                        • D Offline
                                          Dimitrios Kanellopoulos Community Manager @Fenr1r
                                          last edited by 5 Jan 2021, 21:25

                                          @Fenr1r ok this make sense. Thanks man.

                                          Community Manager / Admin @Suunto
                                          Creator of Quantified-Self.io
                                          youtube.com/c/dimitrioskanellopoulos
                                          https://instagram.com/dimitrioskanellopoulos
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                                          F 1 Reply Last reply 5 Jan 2021, 21:29 Reply Quote 1
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