On Wed, 08 Jun 2005 22:49:00 -0400, Ron Rosenfeld
wrote:

On Wed, 8 Jun 2005 19:30:01 -0700, "Matt Barrow"
wrote:


"Ron Rosenfeld" wrote in message
. ..

Some GPS units (GNS480) do NOT require that the the alternate have
something other than a GPS approach.

Why is that?



I believe it has to do with the idea that boxes certified under TSO C146,
which includes WAAS and other goodies, are more robust. Take a look at the
1-1-20.

That should be the AIM 1-1-20


Ron (EPM) (N5843Q, Mooney M20E) (CP, ASEL, ASES, IA)