Also the Ephemeris doesn't help if you move more than about 500 miles from the last place it was turned on. Until it can get at least a 2d fix and new latitude/longitude, it won't know which satellites to look for. The same thing happens with AGPS (the ephemeris usually lasts for a week but not more). You need to know the UTC time and the lat/lon within 500 miles. On my old Nokia n810 you could tap your location. On Thu, May 10, 2012 at 2:03 PM, Eric S. Raymond wrote: > Gary E. Miller : > > Yo Jau-Yang! > > > > On Thu, 10 May 2012 18:38:41 +0800 > > "Jau-Yang Chen" wrote: > > > > > After being fully charge, the supercap in Macx-1 could last around 4 > > > hours, and around one week for Li-ion battery, > > > > Well, that explains my one hour cold start when receiving the sample > > units. One week hold-up is pretty short, and 4 hours hardly worth the > > effort. > > > > Luckily the thumbgps project is for always on, but for weekend use > neither > > is good. Most mouse GPS have batteries are good for a month or more of > > standby. > > Opps, wires are crossed here - I believe cjy was speaking > subjunctively and the device as shipped has a Li-ion battery in it, > but the supercap is a manufacturing option. He'll correct me if I'm > wrong. > -- > Eric S. Raymond > > _______________________________________________ > Thumbgps-devel mailing list > Thumbgps-devel@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/thumbgps-devel > >