Its a low pass filter starting around 3.8Khz or so. I have some before and after plots. I just need to get around to posting them so I can put them up on the reflector.
On Fri, 2009-07-03 at 19:45 -0400, Mike Harris wrote: > G'day, > > | All in all I'm quite pleased with the sound difference. > | > | ~Brett > > OK, that's couple of positive comments. Is there any technical data on > the characteristics of this filter. For example, does it in any way > respond to the "pink" vs. "white" noise thread of a few weeks ago. > > I've become rather more interested in this since reactivating my K2 and > running it side by side with the K3. The K2 sounds so much nicer even in > the presence of a received S3 buzzy background noise. If only the K2 > power overshoot on 40M SSB didn't give my amp a hard time... > > Now to put this in context, there was a huge improvement in the K2 as soon > as I installed the analogue af CW filter years ago. In SSB mode the > filter just introduces a low pass filter which takes the hiss out of the > audio and made it really smooth to listen to. > > I have played with the DSP bandwidth settings and replicated the K2 af > spectrum as displayed in Spectrogram to see if I can make them sound the > same but they don't. > > My agc and equalizer settings are nothing unusual or extreme. > > Regards, > > Mike VP8NO > K2 #1400 > K3 #345 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
