a decoder. That way, you know you are getting the most accu-
rate speed control your system and decoder can provide. If you
choose, you can tell your command station to talk to this decoder
in 28-step language. I leave the system talking 128 steps, but I'm a
control freak. Just ask my wife.
By the way, some decoders use more than 128 speed steps inter-
nally for speed calculations. The SoundTraxx Tsunami comes to
mind. It looks at the speed called for by the command station using
up to 128 speed steps. It then calculates the PWM that should be
sent to the motor at this moment in time, based on the BEMF and
momentum settings and the prior response by the motor to speed
changes, in 1024 increments.
MRH-Dec 2013
