Dexter McIntyre W4DEX wrote: > Interesting Bill. I think they need your help. > > Dex > > Bill de Carle wrote: > > > Interesting idea here for a zero insertion loss narrow > > bandpass filter. Their techniques aren't too different > > from ours, hi! > > > > http://www.jb.man.ac.uk/public/BeagleII.html > > > > Bill VE2IQ > >