[time-nuts] How can I measure GPS Antenna quality?

[Tom Van Baak]

> For the equipment hobbyists usually have, the phase center is not that
> important. Most antennas have a variation <5mm. Even 10mm would lead to
> just a ~33ps variation.

I agree. And besides, for those of us here in Oregon/Washington, the very ground is moving northwest at several inches per year (plate tectonics).

http://leapsecond.com/pages/quake/

/tvb