on "using rad alt during a NPA".
This (Polish side statement) (seemingly accepted by now by all) - disagrees with another piece of revelations, from the informed sources in Poland - namely that "the pilots were counting down 90-80-70-60-50-40-30-20" (down to 20 meters, and in this manner)
There isn't a place! nearby, in the 3 ravines and 3 hills, preceding the runway (assuming they were taking the aerodrome official glidepath, as per aerodrome papers) - where a rad alt would read 90-80-70-60-50-40-30-20. The terrain all jumps there under the plane and nothing this good steady is available in principle.
A riddle wrapped into enigma the "facts" as being fed to the audiences contradict each other. That's why Amelin crawls there LOL with GPS, trying to establish the terrain at least, for fact.
So far:
Road crossing the glidepath right before the edge of the runway - 260m.(the plane managed to fly over that road, getting out of the hole it got to, turned upside down after the road and hit the ground before it reached the runway edge)
The lowest point in the ravine, the hole the plane got into, the ravine right before the road - 198 metres.
The circular road around the city (the other side of the ravine the plane got into) - 237m.