Accuracy with iPhone 6 GPS?

[freaknbigpanda]

Hey I know the accuracy of the iphone 6 GPS is pretty bad because it only updates at 1Hz but I was wondering if the error has been quantified? +/- 1 second? Or better?

[Harry]

The problem is not the update rate. 1 Hz is fine because it can be interpolated to get by far better timing accuracy then 1s. Please read Number, Numbers, Numbers in the FAQ section to get typical accuracy achievable. Higher update rates are required to do details analysis of braking points and others.

Harry

[freaknbigpanda]

Hey Harry, thanks for the response! I read your post in the faq but I'm still wondering what the better use of my money would be. I've got a cheap obd2 reader that reads at one hz and the iPhone. Should I invest in a better obd2 reader or a better gps? I can't afford both.

Thanks!

[Harry]

A 1 Hz update rate from OBD indicates you have a non CAN bus equipped car. Using a fast OBD this can be improved to 2 but hardly more (2 Hz means 10 PIDs/s).

I'd personally would go for a 10 Hz GPS.

Harry

[freaknbigpanda]

Hey Harry I've got a 2005 corvette, which according to this site does have a can bus:

http://www.auterraweb.com/aboutcan.html

Is it possible that the OBD2 reader I got is just crap?

Thanks again!

[Harry]

Hey Harry I've got a 2005 corvette, which according to this site does have a can bus:

http://www.auterraweb.com/aboutcan.html

Is it possible that the OBD2 reader I got is just crap?

Thanks again!

Not necessarily crap but maybe it has some compatibility problems. Which device is it? Please list your full configuration (smartphone, accessories).

- Harry

[freaknbigpanda]

Hey Harry, I've got this reader:

http://www.amazon.ca/gp/product/B010D4U ... ge_o04_s00

and I have an iPhone 6, no other accessories.

Thanks!