Trackaroo Trackmaster

Here's a weird one. I used Trackmaster this past weekend on the lake in Adirondack Park, far away from any interference and indeed the accuracy in the first session was spot-on (all the laps overlay perfectly).

Oddly, though, before I pulled out for the second session I started the app and got the dreaded warning about GPS accuracy being insufficient. I thought it'd go away once I started moving but driving up to the grid didn't fix it and the error stayed up during the entire second session. After the race I rebooted the phone and launched the app again and still got the GPS accuracy error.

Any ideas what could be causing this? This is on a Droid running the stock ROM. I don't believe it was an error with Trackmaster, rather something to do with the phone, but I couldn't figure out what the issue was. Could it be in any way related to not having a signal?

Thanks,

-tim

I got no error or problem during the first session. It was some time before the second session that the dialog showed up.

I don't know how to get past the message. It's "GPS not ready. Please wait to start logging." With the big caution sign and a listing of accuracy of 328 ft. It's what I see if I'm inside a building. There's no OK button.

The Droid was mounted on the windshield using the car mount. I left it there between the first and second sessions IIRC.

Thanks, yeah, I figured it was something to do with the phone, but didn't know if anyone knew of any suggestions.

Will poke around and try to find something.

Thanks for following up. This does make sense now. Most of these smartphones now use something called Assisted-GPS (A-GPS). It uses the cellular network to help the GPS acquire satellites. It greatly speeds up acquisition time. Without it, the GPS can take much longer to acquire enough satellites.

Here's more info:

Wikipedia A-GPS

Jeff