3 ms·
I used to have this problem on older devices, but the GPS on my iPhone 4 consistently gets a lock almost instantaneously. I guess YMMV.
by guygurari 15y ago
I used to have this problem on older devices, but the GPS on my iPhone 4 consistently gets a lock almost instantaneously. I guess YMMV.
- enf 15y agoA lot of the delay in getting an initial GPS fix is downloading the almanac for the satellites at the very slow GPS bit rate. The iPhone 4 probably periodically retrieves the almanac over GSM instead, allowing much faster location fixes. (Several models of Android phones do this.)
- aw3c2 15y agoThat's AGPS. Very straight-forward and useful technology: http://en.wikipedia.org/wiki/Assisted_GPS http://en.wikipedia.org/wiki/Assisted_GPS