[OSM-talk] more accurate open-source gps hardware

[simon at mungewell.org]

> http://blog.makezine.com/archive/2009/11/diy_real_time_kinematic_gps.html
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Looks like he's done a fairly decent job. For those who don't know RTK
gives you post-processing quality results in real time.

For this board his documentation states around 2.5cm accuracy for XY,
which is comparable to L1 survey grade receivers - although note that he
is using a decent (Novatel 702GG) antenna. Most consumer grade patch
antennas will not perform nearly as well.

It's not mentioned, but this sort of receiver coupled with a VRS (which
would keep baseline lenght nice and small) could be rather cool.

Mungewell