Tim, Thank you for the excellent articles regarding the optimal voice settings. As an avid SSB user and supporter and opponent of the double sideband AM since the mid 50's, I have been wondering why the people want to waste the scarcest nature's resource of HAM-radio, the electromagnetic spectrum, by sending unnecessary broad badwidth and high power at audio frequency bands that don't convey the information efficiently.
In addition to those articles, I want to remind you of two other texts that help understanding the importance of proper EQ and signal processing, if you want to transmit the highest intelligibility at the lowest peak limited power: <http://kotisivu.dnainternet.net/ahti/sdr-1000/filtclip.pdf> <http://kotisivu.dnainternet.net/ahti/sdr-1000/speechproc.pdf> Since 1970 I am using these principles in all my home-brew rigs and even modified my "rice-boxes". Unfortunately I have not yet been able to implement that feature in my several SDR-1000s. 73, Ahti OH2RZ On 07/01/07, Tim Ellison <[EMAIL PROTECTED]> wrote: > To all, > > Two new Knowledge Base articles related to optimal voice operation have > been posted. The first, Q10342 - Why is there a 160 Hz Notch Filter for > Phone Use? http://kb.flex-radio.com/article.aspx?id=10342, explains why > there is a notch filter for this frequency in the PowerSDR EQ. > > The second, Q10343 - Rules for EQing Voice for Optimal Phone and AM > Operation, http://kb.flex-radio.com/article.aspx?id=103423 goes into > great detail of how to set your EQ for voice recording and broadcasting. > > -Tim > ---- > KB Administrator > > > _______________________________________________ > FlexRadio mailing list > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > FlexRadio Homepage: http://www.flex-radio.com/ > > FlexRadio Knowledge Base: http://kb.flex-radio.com/ > _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com/ FlexRadio Knowledge Base: http://kb.flex-radio.com/
