If you're using the GW-60 on your wrists and you 2 second speeds are more than a couple of knots faster than your 5x10, make sure do have a closer look at your traces - especially if you spent any amount of time swimming. There have been a couple of cases where analysis with ka72.com or GPS Action Replay Pro had given artificially high 2 second speeds due to spikes. This appears to be more common with the watch since it's more likely to be submerged after crashes. It may be quite common in "wet" session - I found one when specifically looking for it after examining just 15 files. Details are at boardsurfr.blogspot.com/2017/05/overstating-speed-by-4-knots.html and boardsurfr.blogspot.com/2017/05/60-knots-new-speedrecord.html
the GW60 can be used as a standard USB interface, if you can read thumb drives, you should be able to download your gps data. But I don't know if anybody has done it.
As decrepit says, you should be able to download the files in the mode: "UMS: USB Mass Storage for non-Windows platform user."
After you have downloaded them, you can probably open and analyse them in the GPS-Results version built into the Android App. GPS-Logit.
Photo of me wearing the watch on my upper forearm. I've flipped the screen on the watc, so that the GPS chip is above the screen, so that it always points towards the sky, irrespective of an overhand or underhand grip.
Yes, John I think you've hit on the best scenario. That's also where Daffy says he will wear his, as back in the old days his garmin gave good results there.
Mark at Surfsail Australia says my locosys strap extender will be in early July. I may have another try with the bay one using a lanyard.
Also Roger says, over tightening the strap can adversely affect the waterproofing.
Today tried John's way of wearing the watch on my forearm. I'm now sure this is the best option. The watch is easier to see while sailing, the buttons aren't inadvertently activated and the accuracy is really good.
Here's the comparison with the GW52 on my head.
GPSResults V6.147
GW52 ---------------------------------- Watch
2s:
time m [knots] time m [knots]
11:57:41 34.4 33.481+/-0.296 - 11:57:42 34.4 33.465+/-0.456 underhand
12:18:25 34.3 33.372+/-0.161 - 12:18:25 34.3 33.372+/-0.189 underhand
12:03:27 34.0 32.999+/-0.278 - 12:03:28 34.0 33.020+/-0.242 underhand
11:48:17 33.2 32.272+/-0.277 - 11:48:17 33.2 32.254+/-0.383 underhand
12:14:11 33.0 32.110+/-0.211 - 12:14:11 33.1 32.145+/-0.184 underhand
12:10:34 32.4 31.465+/-0.219 - 12:10:34 32.4 31.523+/-0.631 underhand
12:01:05 31.6 30.722+/-0.191 - 11:49:55 31.4 30.557+/-0.516 over hand
11:49:55 31.4 30.559+/-0.402 - 12:01:05 31.4 30.542+/-0.507 over hand
11:35:30 31.3 30.429+/-0.275 - 12:22:08 31.2 30.303+/-0.330 underhand
12:22:08 31.2 30.355+/-0.216 - 11:35:30 31.2 30.291+/-0.255 underhand
10s:
time m [knots]
11:57:43 166.6 32.389+/-0.159 - 11:57:44 166.6 32.376+/-0.221
12:18:27 164.3 31.936+/-0.079 - 12:18:27 164.2 31.916+/-0.122
12:03:31 162.7 31.619+/-0.155 - 12:03:31 162.8 31.652+/-0.177
12:14:16 157.7 30.657+/-0.109 - 12:14:17 157.4 30.592+/-0.148
11:48:20 157.2 30.559+/-0.139 - 11:48:20 157.2 30.554+/-0.159
12:10:37 156.8 30.483+/-0.131 - 12:10:37 156.4 30.397+/-0.268
13:09:56 152.7 29.692+/-0.155 - 13:09:56 152.9 29.723+/-0.150
12:22:13 152.2 29.586+/-0.113 - 12:22:13 152.1 29.563+/-0.167
11:35:32 151.3 29.415+/-0.111 - 11:35:32 151.2 29.384+/-0.112
13:14:52 150.9 29.325+/-0.169 - 13:14:52 150.9 29.341+/-0.159
average[5]: 31.432knots ---------- average[5]: 31.418knots
alpha 500/50m:
time m [knots]
13:22:37 498.1 20.778+/-0.069 - 13:22:37 499.6 20.838+/-0.083
13:29:08 499.4 17.585+/-0.055 - 13:29:08 498.0 17.665+/-0.066
13:25:41 499.4 16.970+/-0.052 - 13:21:20 499.3 16.968+/-0.072
13:21:21 498.7 16.887+/-0.060 - 13:25:41 499.3 16.968+/-0.062
14:14:58 428.5 15.714+/-0.050 - 14:14:58 427.5 15.737+/-0.067
11:36:48 498.7 14.733+/-0.040 - 13:30:46 498.9 15.200+/-0.069
00000000000000000000000000 -- 13:27:18 499.9 14.903+/-0.069
00000000000000000000000000 -- 11:36:48 499.7 14.806+/-0.050
000000000000000000000000000 - 13:11:44 499.2 13.148+/-0.049
000000000000000000000000000 - 11:49:41 426.5 12.996+/-0.059
The watch has extra alphas because min speed is set to 0kts whereas the GW52 is about 3kts
Some of the watch 2s accuracy numbers aren't as good as the GW52, I'll check if there is an under hand, overhand pattern to this. Hmm, well that's interesting only two overhand grips and they are both +/- 0.5 the highest of the ten.
Today's alpha tells the story.
entry leg is overhand, exit leg underhand. Maybe I need to turn the watch upwards a tad.
Hey guys! There is a new activity of LOCOSYSS
LOCOSYS club is holding a Windsurf Video Contest. Windsurfers will are welcome to submit video of their "best" waves surfed during the 4-week contest period (Jul 31-Aug 27).It's welcome to invite all the windsurfing's friends and family to join our fan page
Know the more info please visit our FACEBOOK
And help us to press "like" of our FACEBOOK
www.facebook.com/LOCOSYS.Club/?fref=ts
I'm having trouble getting the app to work on a window vista machine. It give a com pot error message whe I try to link the watch.. Help...please
Mate, I had the same problem and wasted about four hour's of my life that I won't get back.
It was a com port error, which was a problem with finding the right driver.
One that I installed was the problem.
I uninstalled it and it worked.
I have also found that switching USB port's made a difference once. Have no idea why.
I've just wiped my computer clean and about to do it all over again.
Just did it all again. You have to make sure you've installed the driver that's in the folder,
the proper updater, and remember that after you've updated the firmware - you have to go back again and change the connection setting to COM. It changes itself back to UMS. I had no problem with the driver after installing the one supplied, but as I said above - previously I had to uninstall a Driver that was causing the Com port error.
Hope you have a comfy seat. Good luck.
I just did Jeff's again. Give me your's next time you're up, if you don't have any luck.