Thanks for the reply Joe.
I'm hoping that the constant slope you described is not the way the DSP filters are implemented, because that would mean the 50hz filter has a 5.625:1 shape factor, the the 100hz filter has a 5:1 shape factor, the 200 hz filter has a 3:1 shape factor and the 400hz filter would have a 2:1 shape factor. To achieve better than 2:1 shape factor at 30dB per 100hz, the width of the DSP filter would need to exceed 400hz. I wonder if anyone has put their K3 or K3S in the 1 hz tuning mode with a signal generator and ploted out the approximate response curves using the S meter. It's a rather crude way to do it, but in the absence of more accurate test gear it will give some idea of the shape factor of the DSP filters. I will be ordering a K3S today and will ask Elecraft if they have plots for the 50, 100, 150, and 200 hz DSP filters. If not, I will get the little signal generator and report my findings on the reflector. If anyone reading this thread has plotted out the 50, 100, 150, or 200 hz DSP filter response curves, please let me know. Charles K5UA ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com