Guy, Of course, a notch filter could be coded to work anywhere in the range of the panadapter display. However, don't hold your breath waiting for it to do what you want. If the splatter is caused by an improperly adjusted transmitter somewhere else on the band, then the splatter consists of spurious signals that are within your desired pass band. Notching out the main signal will NOT reduce the spurious signals -- they have already been put there by the dirty transmitter.
The only way that this type of notch filter would help is if the splatter is caused by overload in your receiver, either in the hardware or in the signal processing software. Sorry, 73, Ray, K9DUR _______________________________________________ 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 Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/