On Tue, 09 Nov 2010 10:39:03 +0000, Roger Chapman wrote:

Yes indeed. I and a friend were looking for a summit in woodland a few
years back and my older Vista soon lost lock while his later version had
no problems.

There are various chipsets for GPS reception they vary both in the
number of satellites they can track and the sensitivity of the
receiver section. Modern chipsets knock the spots of early designs
that really did need clear line of sight to the satellites.

--
Cheers
Dave.