GPSLogit phones speed resolution

Boombuster GT-31 35.475 33.592 17.842 21.876 28.154 60.379

Logit app Moto-G 35.232 33.687 17.777 21.636 28.18 60.035

Used the Logit app yest but it recorded nothing turned it on before and switched off when I came in but it read nothing.

Galaxy Ace 3 (GT-S727ST) .486kts



Just tested Gavin's LG, he's getting back to me with model number, but it's not recent because it had v4.1.2 in it, he's had to upgraded it so logit loads.
It's resolution is .019kts

I'm testing this in real speed, by clicking on the doppler speed column header. This sorts the column by speed, then it's just a matter of scrolling through the column to find the minimum difference between speeds.

I confirm my Sony Xperia also has Doppler resolution of 0.486 kts.

Interestingly, the trackpoint data resolution comes up as 0.005 to 0,006! But there is no way it is that accurate.

Most phones use assisted GPS. This was put together when the yanks needed better 911 emergency location and uses mobile phone towers to assist in triangulation.
the joy of android means that you have way too many hardware platforms. Some will only have assisted GPS and will require an internet connection and number of phone towers to anywhere near remotely accurate. Some are even reliant on google wi-fi positioning system.
neither of these systems work well outside metro areas and are dependant on your phone carriers ability to supply accurate aGPS information.
so, in a nut shell, if it does not have a autonomous GPS capability (functions without a data connection), it's next to useless.
put the phone in airplane mode, then run your tests again and check the accuracy.

There are 1000's of Android handsets on the market (At the end of 2014, about 18,796 different types apparently).
there are no standards manufacturers adhere to. As long as it runs the "Android execution environment" then you can flog it as an Android device.
So the 18,000 odd types of devices will run a multitude of hardware permutations, such as CPU and GPS chips. Some will be of far greater quality than others.
if your trying to define a standard, you would be better of choosing a model of phone that everyone has to use, otherwise there are far too many permutations. That's why the GT-11/31 etc. are a great leveler as everyone uses the same device.

I think the easiest way to confirm a device suitability is to ensure all testing is a level playing field.
airplane mode on (or no SIM sailquik)
decide a tolerance level
analyse and your done.

that will confirm if the GPS in the device is accurate enough.
I fully agree the rules should be different at the top end of town. It's great that GPSTC is still inclusive and being able to use your phone is one less financial barrier to having a go.

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westozwind said..
There are 1000's of Android handsets on the market (At the end of 2014, about 18,796 different types apparently).
there are no standards manufacturers adhere to. As long as it runs the "Android execution environment" then you can flog it as an Android device.
So the 18,000 odd types of devices will run a multitude of hardware permutations, such as CPU and GPS chips. Some will be of far greater quality than others.
if your trying to define a standard, you would be better of choosing a model of phone that everyone has to use, otherwise there are far too many permutations. That's why the GT-11/31 etc. are a great leveler as everyone uses the same device.

Be that as it may, please, if you know of any phones that don't actually contain a GPS chip, please list them for us.

Huawei Ascend Y330 is listed from Manfred as having a resolution of 0.019 kn, while Roo lists it as 0.486 kn Resolution.
Which list is correct?

Hannes

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onefoot said..
Huawei Ascend Y330 is listed from Manfred as having a resolution of 0.019 kn, while Roo lists it as 0.486 kn Resolution.
Which list is correct?

Hannes

Manfred is correct I just mistyped.

Here's the correct list.

Best
[b]0.019 knots resolution
[/b]Samsung Galaxy S5
Samsung Galaxy S3
Samsung Galaxy SIII mini
Samsung Galaxy J1
Sony Xperia Z3
Alcatel One Touch Evolve 2
[b]Huawei Ascend Y330 [/b]

Worst
[b]0.486 knots resloution
Sony Xperia Z1 compact
Sony Xperia E1
Motorola Moto X
Motorola Moto E
Galaxy Ace 3[/b] (GT-S727ST)

I went through the fist two pages and clicked on all the ones under $100. I didn't find any yet without a GPS......

Thats not to say there are not any. I just have not found them yet.

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sailquik said..
I am testing the Sony Xperia without any phone connection. I have not even installed the sim card. It definitely contains a GPS.
Manfred's program also specifically accesses the Doppler speed data from the phones GPS.

If you know of any phones that don't actually contain a GPS chip, please list them for us.

Andrew, I also have not inserted a sim but my Xperia says I can make emergency calls. I have looked at the battery usage and most was for radio frequency so it
seems the sim only allows for you to be identified and billed etc. whilst the phone always remains connected to (or pings) the cell towers. You sometimes read of people writing that you can be tracked even with your phone powered off so I guess this is what they are referring to.

If you type in *#*#4636#*#* you can get the phone info on the Xperia. I turned off the radio and my battery life appears to be longer. I guess if I get stuck out in the middle of nowhere and need to make an emergency call I can just turn it back on.

you have to be really careful when ordering a phone on gearbest, for the life of me I was sure the one I'd chosen had a gps....

arrived her, didn't have one.... (doesn't really matter I gave it to my mum and it was 60$)

same thing for language, was pretty sure I'd seen french but no french in the menu.



But awesome site, I've been ordering sh!tloads of stuff and it arrives well packaged and freight free.

Which earphones did you get Decrepit ? I got mine from them last week, tried them today, awesome !! (not much bass though)

same I got, clear sound, do tend to pop out of the ear ( I didn't use the ear clips provided, will next time).
you still hear the wind but as a background noise.
I haven't received my phone yet ( http://www.gearbest.com/cell-phones/pp_62902.html) so I just listened to music for an hour whilst sailing, like I said before a bit more bass would be better.

waterproof : didn't fall so can't really tell, but gave them a rinse and they still work.
funny thing is the instructions tell you you'll hear prompts in English but they are in Chinese so at first you have no clue if it's saying power on or off.... you're better off checking the every small led light!

Love the magnet function, very nice packaging too ! and different size ear plugs

all my mates at the beach want some now, starting a business

wow... way over my competences ...I'll send you both tracks from canmore and the yellow phone ;-)

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decrepit said..
You phone now says it's out of stock, and the other colours are more expensive, so hope you got the last yellow one!

That's marketing at it's at worst, I bought it at 72 $ (not 55 as shown) I guess when they run out of a colour they advertise it cheaper to lure you in....