Thanks tgrayson. I do have a little more....
1.) Are you legally able to file IFR to a destination airport that has a GPS approach as its sole approach? How about the alternate? Do these requirements change for WAAS?
2.) If I get a RAIM UNAVAILABLE warning outside the FAF, do I remain at my present altitude, track the GPS Final Approach Course to the Missed Approach Point, then execute the missed approach procedure ? If it is inside the FAF, can I continue the approach?
3.) On the Garmin 430, is an INTEG in the lower left corner the same as a RAIM message?