Thank you for the clarification, Lyle. I hadn't seen that information anywhere before.
The existing K3 manual seems quite misleading in talking about 8 "bands" of audio equalization. We now learn that the EQ facility allows the user to set the relative levels at 8 discrete frequency POINTS, and that the rest of the frequency response is interpolated by "joining up the dots". That gives quite a different shape to the frequency response than many will have imagined. >> How exactly are the EQ bands implemented in DSP, in terms of frequency >> response? >In the KX3, the gain of the FIR filter at the specified frequency is >set to the requested value, and a linear interpolation is performed >from the next lower specified frequency. At the highest frequency, >sertting, all frequencies higher are set to the requested value. > >The K3 operates in a similar fashion. > >These are inputs to the FIR coefficient generator along with >center/width/lo cut/hi cut and manual notch to create the FIR filter. > >73, > >Lyle KK7P > -- 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek ______________________________________________________________ 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
