On Thu, May 28, 2009 at 4:42 PM, M.L. wrote: > On Thu, May 28, 2009 at 2:44 PM, Dave Tweed wrote: > >> >> In a way, it's the discrete-time version of what a superheterodyne >> receiver does in continuous time. >> >> -- Dave Tweed >> > > D'oh > I knew this in RF terms. I had never thought it worked like that in the Z > domain. I learn something new every day. > > - > Martin > Rephrase: I knew it worked like that but I always thought the sample rate had to be above 2x the maximum to encompass the slower convoluted signals. - Martin -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist