Yo Eric! On Tue, 25 Apr 2017 19:48:25 -0400 "Eric S. Raymond" <[email protected]> wrote:
> Gary E. Miller via devel <[email protected]>: > > On Tue, 25 Apr 2017 16:32:17 -0700 > > Hal Murray <[email protected]> wrote: > > > > > So the answer is simple. Not yet. All GPS receivers still have > > > roll over problems. > > > > Not so simple. If your GPS picks up GLONASS, Beidou, Galileo, etc. > > then it will not have the gps week rollover problem. > > Do they not use the same wek/second representation? No. GPS uses 10 bit weeks on the L1 C/A channel, which is what most consumer GPS use. The other systems use 13 bit weeks. > What's the > length of the era in those systems. Has to be finite... 13 bits of weeks. 8191 weeks. 157 years. RGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 [email protected] Tel:+1 541 382 8588 Veritas liberabit vos. -- Quid est veritas? "If you can’t measure it, you can’t improve it." - Lord Kelvin
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