Suunto 9 with the recent GPS firmware was among least accurate GPS watches in today's 25K trail race

[nseslija]

@Dimitrios-Kanellopoulos Interesting, I was convinced that there is different GPS algo for different sport modes… open water and cycling, for example…

[Dimitrios Kanellopoulos]

@nseslija well I said something wrong.

For cycling/running no diff.

For open water only yes there is a special mode.

[nseslija]

@Dimitrios-Kanellopoulos ok, tnx

[zvonejan]

@Dimitrios-Kanellopoulos said in Suunto 9 with the recent GPS firmware was among least accurate GPS watches in today's 25K trail race:

@surfboomerang I have not tested high speeds. Only up to 22km/h that is the fastest j can run.

Can you share this FW? I take all responsibility myself if anything goes wrong.

[Dimitrios Kanellopoulos]

@zvonejan if it was with only the GPS FW updated yes.

Unfortunately it’s debug build and I can’t. Let aside that they check FW versions vs SN

[Łukasz Szmigiel]

What can I say - if conditions are right, Suunto 5 is spot on. Apparently two layers of longsleeve covering the watch don’t do much if GNSS signal is strong.

But - according to Trimble GNSS Planning there were between 8 and 9 GPS satellites visible and between 6 and 7 Galileo satellites and DOP was very low.

Today’s run with GPS + Galileo:

Open area:
Notice top right path being off - I actually run off the embankment and the track is very accurate and consistent.

Mixed park / open / low buildings:

An old park with plenty of tall trees:

[Mff73]

@Łukasz-Szmigiel
S5 BARO should be a killer.

[stromdiddily]

@Mff73 was hoping that would be the s7. I think a Baro version would kill S9 imo

[nseslija]

@stromdiddily S9B with external antenna… my dream watch…

[Łukasz Szmigiel]

I did some scouting on Beidou availability and it’s pretty impressive - while there are around 5 - 9 GPS, Galileo and GLONASS satellites above Wrocław at any given time, there are between 10 and 14 Beidou sats at the same moment.

I believe that Beidou support might solve some GNSS problems for people doing workouts in the mountains or dense urban areas.

[Dimitrios Kanellopoulos]

@Łukasz-Szmigiel I think I agree.

I have been testing now 2 weeks the new FW , I managed to get bad offsets etc from all systems used except GPS-BEIDOU.

[zvonejan]

Honestly, i’m quite pleased with the accuracy lately. These are the last 4 training sessions in the forest and the maximum deviations between tracsk is 15 meters. I use a combination of Gps Galileo,. Only gps give worse results. Gps + Glonas results are really bad - unacceptable to me

[zvonejan]

And last 3 street runs, clear sky. Almost no deviations. I hope, that stays in new FW

[Dimitrios Kanellopoulos]

@zvonejan I like it that you look at the scale.

I have seen people posting:

• What a great track -> Line is super thick (polar/Strava) and scale is like 1KM
• What a bad traack -> Line is super thin (ok) and scale is like 2m

[zvonejan]

@Dimitrios-Kanellopoulos

Correct , when i compare tracks, I always zoom to detail and than look at the scale in corner. These are short daily runs during week, perfect for accuracy comparision.

[Shrek3k]

Just my 2cents with three tracks (short loop, city of Berlin; GPS+Galileo (everything else is worse))

not good, just the usual standard

not that bad

rather good one

Newest official GPS software; ‘soaking’ - after reception has been confirmed - for a few minutes each time before starting

The loop is approx 2,7 km, and I am always moving along the street / on the sidewalk.

Additionally a longer one (22 km, city of Berlin). All in all ok, see the excerpt from the route showing the ‘usual’ short-run-area … not that nice, especially as it decreases at the end of a longer run. Of course: rather challenging area.

[Dimitrios Kanellopoulos]

To mention about Gallileo and my experience.

The earlier or around noon Galileo at my area has given the best tracks ever:

Examples

https://photos.app.goo.gl/BVSy8pkRZraKAyah8

It includes also todays offset

[isazi]

@Łukasz-Szmigiel beidou has 47 satellites in orbit, if I’m not wrong, many more than the other constellations.

[cosme.costa]

@Shrek3k Well, I do not consider these tracks bad at all, in my opinion are quite good. Maybe my demands on accuracy are low . I need to raise the bar here

I am pleased with the level of accuracy of the S9B, it still needs improvement but I am happy that Suunto is working on it and it and it seems that we will get a really good level.

[Łukasz Szmigiel]

@isazi yeah I wasn’t aware of that, it’s pretty impressive. I wonder what will yield better accuracy in practice - 5 Galileo sats or 10 Beidou sats.