"Mike Spera" wrote:

The replacement is much better. However, it still goes out to lunch after
transmitting on the COM for 7 seconds or so. I can live with that.

This is not something you should have to live with. It should be solid in
all circumstances--after all, thousands of users are apparently getting good
service from their 396s.

There seems to be some combination of an RFI source in your airplane and the
396's design that is producing the trouble. Since you can't change the
396's design, it's time to start serious trouble shooting on your COMs and
your electrical system.

It still loses and regains WAAS frequently depending on which direction
you are flying. And, it goes to minimal sat reception with only 2-3 sats
bouncing around when heading Southeast.

I always have 7 satellites (well, every time I look, anyway).

Where do you put the antenna? What kind of Piper?

--
Dan
C172RG at BFM