GPS problems with my S9B

tuxella

@dimitrios-kanellopoulos said in GPS problems with my S9B:

Specifically you started with only 6 visible sats (8-12 is good ).

I couldn’t find any way to find this info in the GPX or FIT files exported from the Suunto App.

@Dimitrios-Kanellopoulos could you tell us how to check the number of satellites seen by the watch?

Thank you.

Dimitrios Kanellopoulos

@tuxella I request the raw data of the watch. Those data are only available to me if you share the activity.

Unfortunately those data are not available to end users for many reasons but I can help here when needed.

(There are some hacks though if you use Android to check that data as they are stored in the filesystem of Android)

tuxella

@dimitrios-kanellopoulos Thank you for the quick answer.

I use an iPhone, so no luck for me I guess.

(If I remember correctly, the number of satellites (or a “reception quality” score) was also available in the files stored by an older version of SuuntoLink for the Ambit.)

Dimitrios Kanellopoulos

@tuxella correct but not sure if that happens anymore

asorli

I had same issue with GPS track with S9B. I did watch reset as Suunto support suggests. Unfortunately with no luck. Issue persists.

https://www.suunto.com/en-gb/move/andrejorli/60313cce67a20b5c3bcf3e3a

https://www.suunto.com/en-gb/move/andrejorli/5ffad6816a37bb349f1ed779

https://www.suunto.com/en-gb/move/andrejorli/6070820b9761a9481e7c19d1

Any suggestions?

surfboomerang

@asorli Do you use GPS+QZSS only or in combination?
Looks like a steep area so probably a big challenge for GPS devices to aquire enough satellites.

asorli

@surfboomerang After reset I did test runs with all GPS setup combinations.
I found best results with GPS+QZSS only.
I know it’s quite callenging terrain for gps reception but with SSWHR I never had such bad tracks on this route.

surfboomerang

@asorli My guess would be: More is better…
Probably more change on a good fix if you combine with GALILEO or GLONASS

Dimitrios Kanellopoulos

@asorli does the watch notify you of GPS lost?

asorli

@dimitrios-kanellopoulos
There was no notification of GPS lost.
I pay attention during activity on pace displayed. When GPS “lost” occoured displayed pace variate ±2 min/km.

Support case 04031406 is opened.

asorli

@dimitrios-kanellopoulos Is it possible issue is related to activity type? Today’s cycling ride track on the same route is amazing.

https://www.suunto.com/en-gb/move/andrejorli/6081a7a0916af10f0fcfa35e

Brad_Olwin

@asorli I have run in places with steep canyon walls and deep forest where I have lost GPS signal, it only happens for a short time and looks nothing like this. I use GPS only and no other satellites. Something seems to be going on here, especially since your cycling track looks good.

Dimitrios Kanellopoulos

@asorli there is something very fishy. Idk what. Because there is a huge blocking gps lost notification that should pop up.

I want you Todo this.

Next time it looses gps , after you sync, please press send logs.

Give me the time the logs where s ent and the username / email in pm

asorli

@dimitrios-kanellopoulos Thank you. I’ll do that.

basetta79

So after one week and some activities, I haven’t had any further problem. Actually after a soft reboot and the update of the SA, just syncing before any new activity is enough to have an almost perfect trace.
Today I had a trailrun and the only problem I had was when I paused the 9B and restarted after 5 minutes. In that case I had the typical straight line trace.
The syncing before starting an activity is almonst mandatory, from what I can understand.

Dimitrios Kanellopoulos

@basetta79 the straight like is ok during pause.

basetta79

@dimitrios-kanellopoulos got another strauight line, but I started too soon the activity after the syncing. Anyway - maybe I am wrong - but the cases of wrong traces are frequent in this period. Does it depend by the last SA update?

isazi

@basetta79 said in GPS problems with my S9B:

The syncing before starting an activity is almonst mandatory, from what I can understand.

I never sync before an activity. It seems my AGPS is updated at night while I sleep.

basetta79

@isazi I used to do the same ( not syncing) when I was on the Spartan Ultra. But with the 9B it semms the story is slightly different

isazi

@basetta79 I have a S9