For what its worth (measured): 100 Bd/50 Hz 20.9 22.1 51.95 81.0 200 Bd/100 Hz 16.4 21.4 21.75 23.4 24.0 24.8 25.2 37.5 40.75 62.6 65.8 300 Bd/150 Hz (apparently, though I have never seen this mode mentioned) 73.6 -- David L. Wilson dwilson314 at verizon.net