Two different GPS's from two different manufacturers?? That would also mean
two different navdata subscriptions too. Your second suggestion of VOR/DME
backup is OK but on pure GPS approaches that wouldn't work. Probably the
most practical thing to do is your third recommendation to have a portable
GPS running to verify your position. In the original poster's case, he would
have noticed that he was approaching the airport immediately realizing that
something was wrong.

It's another reason to get the Garmin 396 or even the 296 with terrain.

Marco Leon

"Doug" wrote in message
oups.com...
If you rely on GPS in IMC you need TWO GPS's (or backup your location
with VOR/DME). And it is best if they are of different manufacturers. A
handheld to backup the panel mount is sufficient.