Al Johnson <[email protected]> writes: >> 25 * 0.5 min = 12.5 min . I assume this gives a good estimate of TTFF >> >> If you already have almanac (which is the usual case as almanac is >> usually valid for months), you'll get a fix in a little more than 30 >> seconds (time required to receive ephemeris from visible sattelite). >> >> [1] http://gpsinformation.net/gpssignal.htm > > ~40s was a consistent lower limit from cold start TTFF tests made to test the > kernel SD drive strength and idle clock. IIRC this closely matches the cold > start TTFF specified for the Antaris 4.
Thanks to Daniel i now know that Antaris 4 doesn't require almanac to start receiving ephemeris so yes, i see now how it can get FF in ~40s. Just tried it myself btw. Sorry for confusion. -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:[email protected] _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
