Is the reference to the DSP filter system or the roofing filter system?
It is all about the DSP system. Lyle performed an experimental test of a 500 Hz DSP filter inside a 2.8 KHz roofing filter, so the DSP filter was the determinant factor. Here is his email again: http://marc.info/?l=elecraft&m=120716404727940&w=2 The inference I drew from Lyle's response is: DSP 60 dB BW = DSP Setting + 300 Hz. You can see that DSP "shape factor" varies with the DSP setting, so it is easier to remember the DSP+300 formula. Dave Hachadorian, K6LL Yuma, AZ . ______________________________________________________________ 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