Joe, I think the ANF only operates in the audio path after the AGC, so it doesn't actually eliminate the carrier from within the passband of the filter, although it does remove it from the audio output of the radio.
However, a tunable, adjustable-width notch filter would solve this. About a year ago, another Flexer came up with a great concept, and unfortunately I do not remember who it was, although I remember his idea and terminology. His idea was to have the ability to slide a notch filter from either the left or right side of the panadapter display, and place it on top of an offending carrier. In fact, he used the analogy of having a 'quiver' of these notch filters available so that multiple notches could be implemented simply by dragging them into position. A great idea, in my opinion, and one which cw op's would also find useful, particularly those of us who prefer to use wider filter settings where the NR is more effective. 73, Dale WA8SRA Joe - AB1DO wrote: >Hi all, > >I have noticed that when someone is tuning on top of a SSB signal, the strong >carrier causes the AGC to cut down the volume, thus rendering a weak SSB >signal all but inaudible. This is what I would expect, I guess > >However, when I activate ANF (Block LMS), the carrier's effect is killed, but >the AGC keeps limiting the audio of the weak SSB signal, thus still rendering >it barely audible. When the carrier itself disappears, the AGC increases audio >again. > >Do others experience the same? Am I overlooking something, some setting? Can >anything be done about this? > >Thanks for any help, >73 de Joe - AB1DO > >Configuration: >Dell Dimension 4700 /w 3GHz P4 HT + 1GB DDR2 SDRAM + Intel 915G Express + >XPHomeSP2 >SDR-1000 + RFE + 100W PA >Delta-44 + Break-out kit >-------------- next part -------------- >An HTML attachment was scrubbed... >URL: >http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20070107/f310a4b6/attachment.html > >_______________________________________________ >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/
