How different is aviation GPS?

B A R R Y wrote:
Stubby wrote:

A friend bought a 60CS recently and we noticed that my old Garmin-12
got better reception and seemed more accurate. We called Garmin and
the fellow we talk with was surprised because both units use the same
chips inside!

I'm totally surprised, and a tad skeptical for a few reasons.

The 12 used a patch antenna, similar to the eMap and eTrex series.
My -12 does not have an external antenna.

Furthermore, the 12 series didn't use WAAS. Is something wrong with
your 60CS? G
Actually, it belongs to a geocaching friend. The reason we call Garmin
is because it appeared that something was wrong with the -60CS. If -12
and the -60CS actually have the same chip inside, they both would have
WAAS. In practice, I think they have the same accuracy.

Also, the old -12 is a lot easier to enter data into. But I do like the
whizzy color on the -60CS.