Interesting Brian, did they both have as good a view of the satellites?
Especially as somebody else says the logit had more satellites than the GT31, maybe it's the difference in the phone chip?
Select to expand quotedecrepit said..
Interesting Brian, did they both have as good a view of the satellites?
Especially as somebody else says the logit had more satellites than the GT31, maybe it's the difference in the phone chip?
Sitting side by side on the dash. Satellite numbers appear almost identical on both files too (between 8 -10 sats for most the trip) Even with the phone track drop outs the numbers between the two units are incredibly close.
If one knot is 0.51m/s then 0.1 kts is 51mm/s.
Perhaps 1Hz recordings just aren't inherently accurate enough given the errors in the GPS system.
Maybe the 5hz or 10hz data loggers are necessary for more accuracy? 
Looks like basically dropped points for the doppler speed. This is probably phone specific, I did not see any in ~3 hours of tracks on my phone. Could be the GPS chip, or might be a multitasking issue, where other apps use up CPU cycles that would be needed to get the doppler speeds. Does the same thing happen when you quit all open apps, and turn off cellular and wifi?
Also worth remembering that the phone antenna orientation and performance may influence accuracy in addition to the performance of the GPS chip and the software, etc...
Select to expand quotedecrepit said..BSN101 said..
"an amount of no advertising will sell nothing to anyone interested" The market does exist its just about them being told its here for them.
And the potential market has more than doubled if the new toy is cheap enough and fully featured. And works for wet & dry applications.
OK I've posted on the general forum, asking who'd buy a GPS, see if we get any answers.
www.seabreeze.com.au/forums/General-Discussion/Chat/would-you-buy-a-GPS/
feel free to add/change my parameters.
not much expression of interest over there..
This post has had over 8800 reads..
But, the forum "first results with the Canmore 102" has had 21777 reads, Now we're talking.
And yes i guess we have all looked once or twice to bump up the numbers.
Forum, "lake george 2014-15", 21139 reads (what type of sailing do they do there again?)
Is there really not a market? Im not so sure.
Select to expand quoteBSN101 said..
Is there really not a market? Im not so sure.
There are already good GPS's available... they are just far too expensive for the professional-consumer (I cant use that term "pro-sumer"...) market.
Select to expand quoteberowne said..
Just noticed the bottom left quarter, speed results includes mSDoP and min/max details that are not available with the cheapy GPS!
Does anyone know if the Canmore 102+ firmware been updated to include SDoP?
Correct. The only GPS chips that we know of now that can produce the SDOP value on the Doppler speeds are the UBlox ones. Some SIRF chips can be made to give these values as well but it requires some special firmware which is normally not easily implemented.
The Canmore does not produce SDOP values (or HDOP AFAIK as it does not log the satellite positions).
So it is very unlikely that any phone will be able to give us the SDOP accuracy values unless you can use it to record the output of one of the Bluetooth loggers that have UBlox chips in them. eg: Wintec G-Rays 1 and 11, but I think both of those are out of production now. 
$200 data logger looks interesting. Cheaper than my GT31 was, if my fading memory is correct.
Qstarz BT-Q1000eX Racing GPS (10Hz) but I doubt it is waterproof.
There is also a $500 option with a screen but it is only splash resistant ipx3.
Select to expand quoteboardsurfr said..
...
For example, 631 is 5 seconds after 630. Seems Realspeed does not handle this well, but the other programs do.
Realspeed handles this exactly correctly - it is the other two that are incorrect. ie: a loss of precision due to data-loss, should be detected and flagged appropriately.
iMacWear M7 GPS android 4.2.2 Smartphone
vi.raptor.ebaydesc.com/ws/eBayISAPI.dll?ViewItemDescV4&item=351263354641&category=9355&pm=1&ds=0&t=1430449669641
Very few details about The GPS chipset 
Select to expand quoteberowne said..
iMacWear M7 GPS android 4.2.2 Smartphone
vi.raptor.ebaydesc.com/ws/eBayISAPI.dll?ViewItemDescV4&item=351263354641&category=9355&pm=1&ds=0&t=1430449669641
Very few details about The GPS chipset
IP67 - wouldn't be waterproof hitting the water at 30knots.
Select to expand quotemathew said..boardsurfr said..
...
For example, 631 is 5 seconds after 630. Seems Realspeed does not handle this well, but the other programs do.
Realspeed handles this exactly correctly - it is the other two that are incorrect. ie: a loss of precision due to data-loss, should be detected and flagged appropriately.
Totally agree Mathew. Funny thing is it is only the trackpoints graph in realspeed that shows the data loss areas whereas the doppler speed graph bridges these . Do GPSResults and GPSAR Pro only show doppler graphs and not trackpoint in their programme?
Select to expand quotesausage said..
>>>>. Do GPSResults and GPSAR Pro only show doppler graphs and not trackpoint in their programme?
Gpsarpro will show either, in one long display, or you can split the display and show both in separate windows. I think I like the Real speed display better where they are both together in different colours, that way the differences are immediately obvious.
Garmin 920XT just got more interesting.
Nice sounding app custom made to...
www.seabreeze.com.au/forums/Windsurfing/Gps/Garmin-920XT-Windsurfing-activity/
I have received word from Locosys that evaluation samples of the GX-52 are being shipped now.
I will have one to evaluate very soon. It's on it's way now!
We are hoping it lives up to expectation and we will finally have a highly capable alternative. Stay tuned.......
Select to expand quotesailquik said..
Look what arrived at the front door a few minutes ago:
Does this unit have a UTC time display in hours:minutes:seconds ?. The GT31 had this feature, and I found it handy.
Manfred has made some more upgrades to his GPSLogit app. Version 6 is available now http://www.gpsresults.com/GPSLogItV1.6trial.apk
He has made the numbers much bigger on the zoom screen and you can pick the readout for it to display.
He has also allowed you to keep the screen on so you can read the display whilst windsurfing. Even better he has set it up to readout the speed like the old speedtalker app.
I must say he has been very responsive to suggestions I've made and implemented then very quickly. I'm using it on a Motorola Moto X and it works very smoothly now.
Roo
It's looking better all the time!
Keeping the display on makes it much more usable, but how does that affect battery life?
The other thing I'd like is a Nautical mile readout, has anybody suggested that?
Select to expand quoteTASSIEROCKS said..
ok open the box!!!!
We don't want to apply undue pressure to open the box prematurely. Suggest forgetting about the box by watching some F1:
Select to expand quoteTGale said..TASSIEROCKS said..
ok open the box!!!!
We don't want to apply undue pressure to open the box prematurely. Suggest forgetting about the box by watching some F1:
?rel=0
Nah, I was watching the MotoGP.....
Oh really? You guys want to see what it looks like? I thought everyone had already seen all the pics. Well OK. 
Here it is:
Sorry for the quality of some pics. Cropped pics from my phone.
Contents of box. No paperwork or manual! I guess it will be all online?
This is definitely very early production! Serial # 000002
Comparison with a GT-31
Back view showing strap holes.
Seal over USB port
The seal open showing how it fits into the actual usb port. This should help to seal it better.
The door hinges on a tie and can be pivoted aside
So far I have charged it and set it up.
The setting up was a bit tedious as there is no manual on the Locosys web site yet for it. Fortunately, I had downloaded a manual from when they first announced this model a few months ago. I am going to have to make a waterproof 'cheat sheet' to carry around with me all the time because I simply can't remember the combinations on the touch screen to change settings etc.
The sensitivity of the screen on this one is vastly better than the watch prototype we tested some time ago and it works quite well.
I have not connected a computer to it yet to download. To my great frustration, it is Windoze only and there is no Mac software interface. A major fault right there!!
I am trying to fire up my ancient Lenovo laptop to get it connected.
I set it down in the backyard and watched the screen display during stationary logging. The rolling variation from zero speed was significantly lower than the GT-31 which is a good sign of it's superior accuracy. I will do some geostationary logging tomorrow next to a GT-31 and compare them. In the brief viewing, the displayed speed was mostly (99%) 0.00 to 0.02 which it quite astounding to me, being an order of magnitude smaller than that commonly seen with the GT-31.
Battery life, data capacity and download ease are still to be determined.
Thats it so far for me but I know there are a few other test units in the hands of a small number of other people so I expect some other test data soon.
