On Fri, 15 Jul 2005 11:39:51 -0400, Anchor
wrote:

In this case the idea that the Gatun Cut causes GPS satellite visibility
issues is nonsense and the idea must be rejected and deleted from your
knowledge base.

The cut is far from a canyon with steep walls. There is plenty of sky for
the GPS to see satellites.

WAAS has nothing to do with it.

Our primitive 1995 vintage Garmin 45 pseudo-tracker multiplexed GPS worked
just fine when we went through the Gatun Cut in January of 1998.


FWIW
The only place we have lost GPS reception was during transiting the Corinth
Canal in Greece.

Peter