GPS altitude meter

[Brad_Olwin]

@fenr1r said in GPS altitude meter:

@freeheeler

we need samples from @MRony where we can see the graph and have some fix points to indicate the deviation in altitude.

Preferably with simultaneous, co-located fixes from other devices with known generally superior accuracy.

All that is really needed is to get a fit file and compare corrections in Runalyze

[Fenr1r]

@brad_olwin Will that tell you the GNSS reception conditions for the route or the corrections made for a notionally optimum route?

[MRony]

@freeheeler - Now I have attached the pictures --------------------------------------------

[MRony]

@freeheeler – one more

[freeheeler]

@mrony
PTE 5.0, are you running with your skis??

The pics are nice and the data, but it would be good if we could associate the info better.
@Brad_Olwin mentioned runalyze, but I don’t use that, hence, no idea about that one.
If you would upload to QS and share the link it would help to see if there are unregularities in the graph.

[freeheeler]

@mrony

1. is 14m too high
2. 90m too low
3. 11m too high
   correct?

[MRony]

@freeheeler correct

[freeheeler]

@mrony
personally I would only worry about the 90m low.
let’s look at your 90m low activity isolated in quantified-self.io

[MRony]

@freeheeler -
My father-in-law - always makes sure that I work up a sweat.

What means QS an how i do this?

[freeheeler]

@mrony
you can upload exported activities to here… or do a complete sync, publish, share… if you’re concerned about privacy make it private again after we checked
https://quantified-self.io/user/jBm0qOhihUMykVYD8HBJMshQrJc2/event/e5b5d4f153619dbd9d24526cf725eb736779f29171438dc1a528c43aa3135019

[MRony]

@freeheeler i will try this tomorow - now i musst bring my kids to bed. Thanke you for your support. KR Rony

[MRony]

@freeheeler Hello, I spoke to Suunto Customer Service. There I was informed that a deviation of 1-3m would be normal (would also suit me) - my deviations (values) are too high. I should reset the clock to factory settings (test again) - if that doesn’t help, i shoud send it to customer service. Info will follow! BR Rony

[Dimitrios Kanellopoulos]

@mrony how high are the deviations and how is the refernce defined?

10meters is also ok. 20 no. only as an exception

[freeheeler]

@dimitrios-kanellopoulos
@MRony has sent samples with

1. 14m too high
2. 90m too low
3. 11m too high

[Dimitrios Kanellopoulos]

@freeheeler with a baro device ?

[Dimitrios Kanellopoulos]

If you want me to analyse what happend please provide a link from suunto app, the expected values and so on

[freeheeler]

@dimitrios-kanellopoulos
that’s what I understood, yes.
and no adjustment of the altitude prior to the activity

[fazel]

@mrony Does that picture illustrate how you were wearing the watch? If so, it looks like the barometer holes covered by your shirt…

[freeheeler]

@fazel
I also check that my sleeve goes below the watch.
But let’s see his QS graph first, once he shares it… or the link to Dimitrios

[kabzior]

@freeheeler said in GPS altitude meter:

personally I would only worry about the 90m low.

Yeah, I mean, come on, 11m on 2347 peak? That is less than 0,5%…
It’s like going 100 km/h with your car but your speedometer is showing 99,53 km/h…

I decided to buy S9B instead of Polar or Garmin after reading DC Rainmaker review in which he said that S9B was the only one on Stelvio showing altitude different only 0,5m than real. And since altitude was crucial for me, S9B it was. But I was not expecting S9B to be 0,5m accurate all the time.
Am I disappointed? Absolutely no! Most of the times accuracy is about 99,7%, quite often reaching 99,9-100%, worst I have seen is no lower than 99%. I think it is great.