On 5/12/2019 3:47 PM, Bob McGraw K4TAX wrote:
Certainly will take out 1 or 2 signals and not affect others in the 2.7 kHz BW of the normal FT-8 receiver bandwidth.
Not quite -- there's a lot of phase shift associated with the amplitude response change of the notch, so it degrades docoding of signals for some unknown bandwidth on both sides of the notch. K1JT warns against using any filtering ahead of the WSJT-X decoders for this reason.
73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
