I have tried using the dual passband filter in FSK, and it doesn't seem to copy any better than the flat DSP filter with 250 Hz roofer. I also can hear that slight ringing on the mark and space frequency in the headphones with DPB. The ringing makes it a little hard to tell in the headphones if a really weak station is calling. I use the regular flat DSP filter now.
Dave Hachadorian, K6LL Yuma, AZ -------------------------------------------------- From: "Mike" <n...@nf4l.com> Sent: Monday, March 01, 2010 2:42 PM To: <elecraft@mailman.qth.net> Subject: Re: [Elecraft] K3 - A different RTTY question > I've found I copy much better without using dual passband. I > have the > 400Hz 8-pole filter. I'm using AFSK-A. I use MMTTY. > With DPB on, even the noise sounds a bit like a RTTY signal, > and the > MMTTY shows 2 little peaks on the FFT display. > Do I have a configuration problem, or is that normal? > > 73, Mike NF4L > > ______________________________________________________________ > 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 > ______________________________________________________________ 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
