Ed, I would think you are hearing the results of a narrow passband rather than DSP audio distortion. I say that because in all cases with the K3, it is the DSP that determines the filter width rather than the roofing filter. What I am saying is that even if you put in a 1.8k filter, SSB at a 1.8k width will sound the same as it does right now using only the DSP.
I trust you are using the HI-Cut to narrow the receive passband, leaving the LO-Cut set to the 200 to 300 Hz range rather than trying to use the Width and Shift controls. If you are using Shift and Width, you have to re-position Shift with every change in Width or the speech will become more distorted. Using HI-Cut, you just reduce the high frequency end - no other change is required. 73, Don W3FPR On 9/26/2012 1:35 PM, Edward R Cole wrote: > I have thought of adding a 1.8 or 2.1 KHz filter for working tough > SSB signals. I do try running the DSP down to that bandwidth but > find that the DSP audio distortion sometimes is counterproductive to > hearing weak SSB. I do not have trouble with dense local QRM up here > in Alaska. I wonder if the roofing filters are easier to listen thru > than the DSP filter? > ______________________________________________________________ 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
