>50 Hz and 100 Hz octave bands are VERY important -- they allow equalization to correct for proximity effect in directional microphones, and to reduce the effects of breath pop.
Jim (K9YC), what part of the 50 Hz spectrum will get by a 2.7 KHz roofing filter at any equalization setting? At least on my system I could put 50 Hz at +16 dB gain and 50 Hz will still be down 20 dB. The DSP skirts put it lower. I ask this question because I have been staring at my actual roofing filter plots. So I don't quite understand where you are coming from. Perhaps the devil is in the details and breath-pop energy which would be cut off by the roofing filter/DSP combination is still affecting the transmit-audio gain in deleterious ways. Maybe it is just my lack of understanding of how the K3 works. In this area it is a bit of a black box to me, the price we pay for not soldering. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com