Originally Posted by
uksatcomuk
I'm not refering to the dopler effect "per se" but the effect related to the movement of the satellite itself.
I'm not sure what you mean. They've said several times that satellite motion is the primary source of doppler in the signal because the aircraft attempts to correct for its own motion, but not satellite motion.
If the aircraft wasn't correcting for its motion, we'd have had a much better idea of where it went a long time ago (and, if it was correcting for satellite motion, we'd probably still be arguing about whether it went north or south).