Two Antennas (was RE: "Blunkett u-turn on data privacy plans")

[David Hansen]

On 4 Mar 2003 at 17:05, Brian Gladman wrote:

> However these measurements would require a laboratory environment - as
> you suggest, it does not seem likely that sub-cm resolution would be
> possible in differential GPS measurements in a field environment.

As the two antennas are likely to move by several mm relative to each 
other (due to wind, springy grass, backlash in the mountings and 
whatever) I would be inclined to say that such accuracy is 
impossible.

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