Search found 53 matches

by jwmelvin
Fri May 02, 2014 11:19 am
Forum: Global Navigation Satellite System (GNSS) Sensors
Topic: Dual XGPS160
Replies: 217
Views: 62770

Re: Dual XGPS160

After many false starts, I was finally able to update the firmware on my XGPS160 to 1.3.0 using the new version of the iPhone SkyPro app (2.2.0) on an iPhone 4. What seemed to work was to delete the app, reboot the phone and reload the app. In the meantime, I had also updated the iPhone OS to 7.1.1...
by jwmelvin
Thu May 01, 2014 6:22 pm
Forum: Trouble Shooting
Topic: Inconsistent GPS update rate on XGPS160
Replies: 13
Views: 3381

Re: Inconsistent GPS update rate on XGPS160

Interesting, thanks. What device was this captured with? I thought VBox Sport had the same Bluetooth issue that XGPS is having (on iOS 7.1+).
by jwmelvin
Tue Apr 29, 2014 8:56 pm
Forum: Using LapTimer
Topic: Recalculate after sensor-delay change
Replies: 9
Views: 1836

Re: Recalculate after sensor-delay change

The speed delivered by GPS sensors is not derived from position changes but the so called Doppler effect. Wouldn't it make sense to calculate GPS speed from the position fixes, if that is more accurate? Related: it appears that certain laps have a slower lap time but a faster reported average speed...
by jwmelvin
Tue Apr 29, 2014 8:52 pm
Forum: Trouble Shooting
Topic: Inconsistent GPS update rate on XGPS160
Replies: 13
Views: 3381

Re: Inconsistent GPS update rate on XGPS160

Any update on this (now that I have an XGPS160 on the way)?
by jwmelvin
Fri Apr 25, 2014 12:52 am
Forum: Trouble Shooting
Topic: G force readings backwards... How to prevent?
Replies: 16
Views: 3232

Re: G force readings backwards... How to prevent?

Aesco48, nice video. Which version of phone do you use and how do you mount it? I mount my phone to the roll bar so I can see my hands but there is so much vibration as I go to higher rpm's that the video is not much good. I use a Ram mount on my harness bar. It gets some vibration and lots of wind...
by jwmelvin
Fri Apr 25, 2014 12:49 am
Forum: Feature Requests
Topic: Virtual best lap shown graphically on Speed @ Distance Chart
Replies: 10
Views: 3276

Re: Virtual best lap shown graphically on Speed @ Distance C

Yes it would help a lot to be able to go from the lap chart to a particular lap. And to auto-tag laps in the lap list that have a fastest sector.
by jwmelvin
Thu Apr 24, 2014 5:30 pm
Forum: Feature Requests
Topic: Virtual best lap shown graphically on Speed @ Distance Chart
Replies: 10
Views: 3276

Re: Virtual best lap shown graphically on Speed @ Distance C

gplracerx wrote:The best sectors are colored red on the laps bar chart, IIRC.
Yea but there's now way to quickly get to the details for each of those laps or even identify them by lap number, AFAIK.
by jwmelvin
Thu Apr 24, 2014 2:09 pm
Forum: Feature Requests
Topic: Sector Times
Replies: 14
Views: 3225

Re: Sector Times

It would be nice, then, to be able to turn off the numbers as they are distracting. I love the laps chart but when something like traffic throws off a lap, it makes the numbers largely irrelevant. One would better see the progression in laps if the numbers showed time relative to the reference lap/s...
by jwmelvin
Thu Apr 24, 2014 10:53 am
Forum: Feature Requests
Topic: Sector Times
Replies: 14
Views: 3225

Re: Sector Times

Thanks for the reply. It would make more sense to me for that to show the change from the reference or from the best sector. And I think using some consistent reference would be more useful for comparing laps to one another.
by jwmelvin
Thu Apr 24, 2014 1:38 am
Forum: Feature Requests
Topic: Sector Times
Replies: 14
Views: 3225

Re: Sector Times

In the upcoming LapTimer version 17.5 I have included sector to sector change times (faster / slower) following the suggestion above. This should actually be exactly the table seen elsewhere. Virtual best calculation is improved too and will be less fragile in case not all laps show the same number...