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[aprssig] Potential For Some Really Tiny APRS Gadgets --- Space Daily Story on Supersmall GPS Receiver

Scott Miller scott at opentrac.org
Thu Sep 18 16:11:33 UTC 2008


> I don't know how they manage one second acquisition, but if that's
> really true, it will allow for some really low powered devices as it
> will allow the GPS to be turned off in between beacons.

Apparently the SiRFStar III is supposed to be capable of about the same 
thing with different firmware.  It pre-calculates a set of ephemerides 
and caches them for a week or so.

With the battery and antenna requirements, this isn't going to shrink 
APRS trackers all that much.  The Trimble Copernicus is only the size of 
a dime, so it's not a huge leap compared to what's already out there.

Scott
N1VG





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