Dale, I also submitted a tuneable notch filter to the enhancement list a few months ago. The way I envision it working is much the same way it works in MixW, Right click on an unwanted signal. A drop down box has as a selection: ADD NOTCH FILTER. Click on this. You can add other notch filters at other frequencies too. They are pretty narrow; I add two for a Pactor II signal or a RTTY signal. These notch filters are very effective in MixW for the digital modes but don't do anything for you on SSB.
You might also get some relief by turning ACG off and reducing the RF gain control. If the front end is overloading, try turning the preamp off. 73, Chas W1CG. At 10:46 PM 1/7/2007, you wrote: >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/ _______________________________________________ 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/
