Spartan Sport WHR Baro - GPS Accuracy "OK" - fix rate

Dimitrios Kanellopoulos · 18 Jul 2019, 20:21

Can I have the file to check this? preferably a FIT file

zadow · 18 Jul 2019, 20:32

Sure. It’s on the way to you via messanger (;

Dimitrios Kanellopoulos · 18 Jul 2019, 20:36

Checked it you are right they are about 1-5s appart but many 1s appart

Dimitrios Kanellopoulos · 18 Jul 2019, 20:36

But I think the Spartans on Good record every 1s if I remember corerct

sartoric · 18 Jul 2019, 20:37

Yes, but he say it was set to OK
I guess I’ve never tried “OK” just “GOOD” and it correctly records every 1s

Out of curiosity, is there any way to search moves (MC or SA) based on GPS setting ?

zadow · 18 Jul 2019, 20:40

Correct, @sartoric . It was set to OK. I am using GOOD only on my long rides on bike. For hiking, I am always using OK.

Dimitrios Kanellopoulos · 18 Jul 2019, 20:40

@zadow oh!

Dimitrios Kanellopoulos · 18 Jul 2019, 20:42

Then I have to test it once. Anyone else up to the task?

sartoric · 18 Jul 2019, 20:42

Gonna try a fake walking move

Dimitrios Kanellopoulos · 18 Jul 2019, 20:42

Oh wait! wait wait wait.

The first 7-12 mins are on best to determine the fused alti!

Dimitrios Kanellopoulos · 18 Jul 2019, 20:43

Yes I crosschecked the file. Skip some samples at start and then its about 60s

zadow · 21 Jul 2019, 09:16

Sorry guys, coming back a bit late. Trying to recovery a bit from my yesterday’s triathlon
Well, maybe I am missing something or I am not reading the file correctly, but still I see GPS change every 3-5 seconds. I checked different parts of file.
Could be the reason that I am reading GPS export from Strava? Fit file is in binary format.
Anyway, still, if the GPS accuracy in OK mode, is really as good as I can see it in my hiking activities, then it is impressively good.

I am going off for next two weeks, so no hurry on this topic. Thanks and enjoy the summer time!

sartoric · 21 Jul 2019, 15:18

@zadow
Strava does its sh…magic with data during the import

Dimitrios Kanellopoulos · 21 Jul 2019, 16:31

@zadow It can be that reason. You can upload a fit file to https://fit2tcx.runalyze.com/temp/ to get a detailed decode for example.

Dimitrios Kanellopoulos · 21 Jul 2019, 16:31

@zadow Or ask me for the data, or a way to show you how to do this on beta.quantified-self.io

zadow · 14 Aug 2019, 09:23

Dears,

I am back after some time. Recovering after last triathlon race and enjoying time with my family. It’s a great summer, by the way
I hope you all have also nice time, whatever you are doing

However, I need to get back to this issue as I still think that there is a issue with GPS accuracy set to OK. I was on three days long hike. First day morning I set my SSWHR Baro as following:
GPS accuracy - OK
Low color mode - ON
Display - OFF (after 10 sec)
Navigation - OFF (completely, even the breadcrumb display was off)

I was observing the GPS accuracy, which is not so important for me during hiking, but far more important - battery lifetime.

Here are my issues:
#1 - GPS accuracy - it’s just too good for OK mode. The fix is definitely not done each 60 seconds. According to my observation it is somewhere between 5 ~ 20 seconds. (yep, I am aware of first 15 minutes when FusedAlti should kick in).

#2 - Battery drain - I guess this is connected with #1. According to Tech. specification, with GPS set to OK, the battery should last up to 40hrs. My hikes tooks approximately 6 ~ 7 hours. (Day #1 and day #2). The battery drain was from 60% ~ 70% percent, which is consumption about 10% per hour. Simple calculation tell us that with such consumption, battery would last about 10 hours. Hey, wait - 10 hours is expected at GPS set to BEST…

So, I did some activities with different GPS setting to see battery consumption for each Power saving mode:
BEST - cca 10% ~ 12% per hour
Good - cca 5% ~ 7% per hour
OK -cca cca 8% ~ 10% per hour

That is pretty strange, isn’t it? Consumption for mode OK is worse than for Good…

I wanted to create a ticket for this but somehow could not find a link where to report it.

For your reference, link to my activities:

Hiking Day#1:
https://app.suunto.com/move/zadow/5d505a3c17683a14e17386c8

Hiking Day #2:
https://app.suunto.com/move/zadow/5d516eef58e21162c5da60bc

Hiking Day #3:
https://app.suunto.com/move/zadow/5d5288bca6957bf53b9a7643

P.S.
Please do not advice me to go for S9 when I am so focused on battery life. I am not and I am pretty happy with my Sport Baro. It does everything what I need and it does it perfectly. Once the OK mode is solved, it’s still the best watches for all my needs. I just wanted to mention this upfront

Dimitrios Kanellopoulos · 14 Aug 2019, 09:45

@zadow Did you use navigation? What file is with the OK mode? Did you use any ETA custom fields?

zadow · 14 Aug 2019, 09:48

@Dimitrios-Kanellopoulos said in Spartan Sport WHR Baro - GPS Accuracy "OK" - fix rate:

@zadow Did you use navigation? What file is with the OK mode?

Hi Dimi,
No, Navigation was completely OFF. Even the Navigation display was off, not even breadcrumb mode. All three days was tracked with GPS set to OK. I did not change it. and I was not even changing it during the hiking. Mode OK all the time.

zadow · 14 Aug 2019, 09:52

@Dimitrios-Kanellopoulos said in Spartan Sport WHR Baro - GPS Accuracy "OK" - fix rate:

Did you use any ETA custom fields?

Hmmm… you are asking - Did you use any ETA custom fields? - so yes, if I remember correctly, my custom Hiking mode contains ETA fields, just for case that I would need navigation.
But still, navigation was completely off. IMHO, ETA field should not affect GPS accuracy, when navigation is off. If so, than it is clearly pointing to a bug in firmware…no?

Dimitrios Kanellopoulos · 14 Aug 2019, 09:59

@zadow Ok cool. Which link is with Ok mode?