First and Foremost. Merry Christmas to all. I have just downloaded the Lap timer software and have been given a Dual GPS 150A. I have an Iphone 5S plus in the house we have a Go Pro Hero 2 and the new Hero 3. I apologise if this has been asked before, but I have no tech ability at all. I just want to use these items on a bike to record times on track days in the UK. Example, why do I need the 150a when the iphone seems to be more capable. Do I leave the iphone in the pits with the bluetooth on and just mount the 150 gps or do both items have to be on the bike, if so where and what tasks do they perform. Also whats the best way to sort out use of go pro's, as we have been recording our track days for ages, but the laptimer, seems to be able to take this to another level!
I know these are simple questions, but not easy to get the answers from he sites. Could someone lay out the real basic please?
Using it All
Re: Using it All
Your questions:
The 150A adds by far better GPS accuracy and 4 to 5 positions per seconds instead of only 1 per seconds. This allows better analysis of your drive.
The 150A gets connected to the 5S using Bluetooth. Bluetooth is a low power / low distances connection, so leaving the phone in the pits is no option.
The typical setups for LapTimer when used on a motorbike is
Before starting with the video equipment, please make sure you get standard operation working. Check this video to get a quick start tutorial: http://www.youtube.com/watch?v=NS09uYux ... e=youtu.be It is a little outdated, but should show all the steps necessary in the beginning.
Once you have mastered normal operation (i.e. have timing and data recording working), please check LapTimer's video documentation for video modes.
Please let me know if you run into further questions (you will, for sure
).
- Harry
The 150A adds by far better GPS accuracy and 4 to 5 positions per seconds instead of only 1 per seconds. This allows better analysis of your drive.
The 150A gets connected to the 5S using Bluetooth. Bluetooth is a low power / low distances connection, so leaving the phone in the pits is no option.
The typical setups for LapTimer when used on a motorbike is
- Mount the 5S somewhere to your dashboard / behind the windshield or
- connect it to an external GPS, store the phone away in a save place, and place the external GPS behind the windshield (e.g. using tape).
Before starting with the video equipment, please make sure you get standard operation working. Check this video to get a quick start tutorial: http://www.youtube.com/watch?v=NS09uYux ... e=youtu.be It is a little outdated, but should show all the steps necessary in the beginning.
Once you have mastered normal operation (i.e. have timing and data recording working), please check LapTimer's video documentation for video modes.
Please let me know if you run into further questions (you will, for sure

- Harry
Re: Using it All
Appreciate the assistant. will be back for more! Can I assume the then the external GPS overides the iphone gps as its better etc, but that the phone must be in connection to the external gps via bluetooth when in use, i.e keep it in my jacket pocket but have the external gps out on the bike so it can catch the satellites? Thus I set the latimer to go drive/ride, drop phone in the pocket and I'm good to go? Sounds Easy
Re: Using it All
Yes. But putting the phone into your pocket is not a good idea... 1) Your cloth / leather may trigger some operation when touching the screen 2) Wearing a piece of metal in your cloth will potentially hurt you when crashing - so it must actually not be used like this. Please place the phone in your gloves box or similar - that's much better.mgmcdon wrote:Can I assume the then the external GPS overides the iphone gps as its better etc, but that the phone must be in connection to the external gps via bluetooth when in use, i.e keep it in my jacket pocket but have the external gps out on the bike so it can catch the satellites?
- Harry