Peter, Tim and All, My settings for Elecraft K3 TX equalizer are following for high noise/DX pileup conditions: 50 Hz -16 dB 100 Hz -16 dB 200 Hz -12 dB 400 Hz ±0 dB 800 Hz + 9 dB 1200 Hz +16 dB 2400 Hz +16 dB 3200 Hz -16 dB After that there is 2,7 kHz "roofing" filter. The compression setting is put to the maximum 30. I have used similar kind of settings also for SDR-1000. I'm using a dynamic microphone with a practically flat frequency response. Remember however, that the optimal settings depend on the personal voice. Remember also that these settings are not for HiFi, but only for efficient punch with limited TX power and bandwidth through high noise and QRM.
Since 1970's Im using same kind of equalizer settings together with the old fashioned "RF-clipper" during the years in all of my heavily modified analog "rice box" radios and I'm usually getting easily through the pileups with only 100 W output power. Now the DSP can do the same thing much better and in a more elegant way. Please, read the KB articles Tim is referring to: http://support.flex-radio.com/Downloads.aspx?fn=speech-processing.pdf http://support.flex-radio.com/Downloads.aspx?fn=filter-clipped-speech.pdf (Thanks Tim for putting those articles to the KB!) 73, Ahti OH2RZ 2008/6/5 Tim Ellison <[EMAIL PROTECTED]>: > Ahhh Grasshopper. The KB is all knowing. It should have all that your heart > desires. > > http://kb.flex-radio.com/article.aspx?id=10343 > > > > -Tim > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Peter G. > Viscarola > Sent: Thursday, June 05, 2008 3:42 PM > To: flexradio@flex-radio.biz > Subject: Re: [Flexradio] articulation and bandwidth > > > I've been following the discussion of SSB intelligibility with much interest. > > While I don't think I'm game for reading the journal articles, I *would* > appreciate some practical EQ advice... I think I heard somebody say "cut at > 150" and also "bump at 2300" (was it)?? > > I'm not asking for a prescription, obviously, but I know it'd help ME to get > some starting values, > > de Peter K1PGV > > > _______________________________________________ > FlexRadio Systems Mailing List > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > Knowledge Base: http://kb.flex-radio.com/ Homepage: > http://www.flex-radio.com/ > > _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
