Congratulations, Hank. I think you made a good choice.
Years ago, when I installed an IFR Loran, there was some delay
in getting the installation and the POH supplement approved.
There was no such delay for my CNX80.
The 337 plus a simple flight test to prove conformance did the trick.

I can't recommend actually taking your new GNS480 into IMC
until you've become pretty familiar with it, though.
Spend some time with the Windows simulator to get comfortable
using the menu structure. You'll need to learn where everything lives.
---JRC---

"Hankal" wrote in message =
...
I am getting a Garmin 480 installed.
In the disclaimer it states all GPS are for VFR approval only.
Will be IFR when 337 is approved.
Any comments?
Hank 172 driver