GPS altitude meter

freeheeler

@g287-sf
I think before we keep this discussion going we need samples from @MRony where we can see the graph and have some fix points to indicate the deviation in altitude.
Location is most of the times spot on with my watch.

notice where I left the sidewalk and cut the corner? (counter clockwise direction).

and altitude recorded e.g. at the highest point of the ride compared to what’s stored in swiss topo maps.
I think it’s close to top notch.

Fenr1r

@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.

freeheeler

@fenr1r
not everyone can pull an A3P out of his drawer

Fenr1r

@freeheeler said in GPS altitude meter:

not everyone can pull an A3P out of his drawer

Ha! Good point. (Altho’, as detailed elsewhere, my A3P [FusedAlti] was outclassed by an SSU [Baro only] in a comparison a while back. So it may not be at its best.)

However, as long as there is postal delivery and selfless dedication to the scientific method …

It occurs to me that there is a more definitive test: against another 9Baro of known, recently-demonstrated accuracy.

You can fall back in affection with your Airboss in the interim.

MRony

@freeheeler today i was a Tour, and the gps failed~ 100m! Photo i will load up in 3houers!

freeheeler

@mrony
let’s say, without knowing details, the altitude was wrong… not GPS failed. at least that’s what I understand from the context, it could be misleading.
I’m curious about your details.

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

is 14m too high
90m too low
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

14m too high
90m too low
11m too high