An explanation please. I'm way out of the loop, having retired in '04, so before computer-generated approaches had come about. If the aircraft is carrying out a NPA, and has no ILS glidepath, would not the EGPWS be screaming well before this point? Back when, home base on one runway flew over an escarpment. At about 2 miles, suddenly the rad alt went from about 1,000' to 600' almost instantaneously. The GPWS (no EGPWS then) certainly shouted at that point.