On August 25, 2004 01:11 am, Alan B. Pearce wrote: > >Or perhaps doing an FFT analysis and seeing what's > >really there as a first step to synthesising it. > >An oscilloscope with FFT function should be up to > >this, or you could get out your A2D and serial > >equipped PIC and a PC and .... > > or dsPic ... ??? Spectrum analyzer would do nicely here, supposing you can get them running this low in frequency. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics