>So, with fixed pulse frequency we have relatively >fixed RF noise much more easier to deal with, then >when frequencie is permanently changing. Except that because the width of the pulse is varying the harmonic content changes. From this point of view I doubt there is much difference between the PWM and fixed pulse width methods when it comes to hash filtering. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body