It is interesting to note that Tom and others share exactly the same experience as I have. There is a certain 'flavour' to DSP audio that is not making it easier to copy weak signals in the noise. I
Correction to my previous posting (see below). Not a "few tenths of a Hz wide", instead it should say "a few Hz wide, say 20-50Hz".. 73 Peter SM2CEW _________________ Topband Reflector Archives - htt