Well actually I prefer copying CW with a certain amount of noise present. Pure tone, no noise CW, as from a practice oscillator or an S9++ signal quickly becomes boring and I loose concentration(or something). It's perhaps why I prefer to dig out weak signals (ESP) from the noise on the band. However I do really appreciate the tools available in the K3 to do this :) APF works great if you really learn to use it.
Any one else? 73, Deni - F5VJC On 7 February 2016 at 03:46, Dave Cole <d...@nk7z.net> wrote: > Isn't that how the Transporter in Star Trek works? :) > -- > 73's, and thanks, > Dave > > For software/hardware reviews see: > http://www.nk7z.net > > For MixW support see: > https://groups.yahoo.com/neo/groups/mixw/info > > For SSTV help see: > http://groups.yahoo.com/neo/groups/MM-SSTV/info > > > > On Sun, 2016-02-07 at 00:03 +0000, David Woolley wrote: > > Noise reduction is a difficult problem and hearing aid manufacturers > > have been trying to solve it for the last couple of decades. > > > > One important point to note is that noise reduction is normally aimed > > at > > reducing subjective noise and therefore reducing fatigue. Generally > > what you are doing is actually recognising signal, then suppressing > > those frequencies that are not conveying the signal. The noise on > > the > > same frequencies as important parts of the signal still gets through. > > > > You cannot remove noise unless you have first identified the signal, > > so > > you cannot remove the noise that is masking an unknown signal. > > > > The simplest noise reduction is a narrow band CW filter! The > > ultimate > > noise reduction for CW would be to decode the signal, and regenerate > > it, > > but that is currently only possible for signals that are already > > clean > > an well formed. > > > > Decode and recreate might be the ultimate solution for hearing aids, > > as > > well. > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to foxfive....@gmail.com > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
