Re: Low cost GPS receiver?

[Hal Murray]

darius@dons.net.au said:
> For NTP purposes USB is fine, and solves both the communications and power in
> the same cable and you don't have to do any soldering either :) 

That depends on if you want good time or crappy time, and what your versions 
of good and crappy are.

I'm interested in better than you can get via USB with the ones I've tried.


The firmware in most/many GPS modules seems to do a poor job of scheduling the 
serial transmissions.

Here are a couple of graphs from a long time ago.  SIRF 3
  https://users.megapathdsl.net/~hmurray/time-nuts/RMC-offset.png
  https://users.megapathdsl.net/~hmurray/time-nuts/RMC-hist.png

Has anybody found a low cost GPS unit with good timing on the serial port?



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