[digitalradio] Characters per minute and Words per Minute - convert ?-

[graham787]

Q How  do  you  convert between   Characters  per minute and Words  per Minute 
..   is  CMSK-8 data rate  faster than  MF-1 ?
 
CMSK8 7.8125 12.5Hz 3.75 WPM 12H5F1B 

ROSMF1: 16.7 characters/minute

Tnx -G.