Don, thanks for the reply.
1. when I try using the Lo-Cut, it seems to be confined to 100 Hz increments, so, 150, 250, 350, but no 200, 300, or 100 available; is there a way to set that differently? 2. I can accomplish the same thing either way if I understand what is going on, but is there a way to preserve the setting? Thanks again. --Dave W5SV On 2/29/12 7:18 PM, Don Wilhelm wrote: > Dave, > > Yes, the default is 1500 Hz. with a 2.8 kHz filter, that puts the low > end at 200 Hz and the high end at 2900 Hz. > > AND that is why you should be using the Hi-Cut, Lo-Cut on SSB instead > of Shift and Width. > > For good intelligibility, you need to have some content in the 300 Hz > range, so set the Lo-Cut to 200, 250, or 300 depending on your desires > and the QRM conditions. Then change only the Hi-Cut to reduce the > filter width - the width will change, cutting the highs and the filter > center frequency will be automatically changed leaving the low > frequency end unchanged. > > You will find that you can use a filter as narrow as 1500 Hz and still > maintain SSB intelligibility (for a male voice, a female voice may > need a few more highs). Using Width and Shift to accomplish the same > thing is possible, but requires a lot more "knob fiddling". > > 73, > Don W3FPR > > On 2/29/2012 6:38 PM, David F. Reed wrote: >> I note that as expected, the center frequency of the bandpass of any >> given filter on SSB seems to be 1.5 KHz, whether its the 6 KHz filter, >> the 2.7 KHz filter or the 2.1 KHz filter. >> >> This seems to work out to be passing from 150 Hz to 2.85 KHz, right? >> So the 2.1 KHz filter (without using the shift control) passes 450 Hz to >> 2.55 KHz, right? >> >> I note that if I shift the center of the filter down to 1.35 KHz, the >> voices are more intelligible... >> >> When I switch filters and get back to the 2.1 KHz filter, the shift is >> lost; is there a setting I can use to save that shift setting? >> >> Thanks& 73 de W5SV, Dave >> ______________________________________________________________ >> 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