Jim and Joe, What do you think of the idea of adjusting the equalizer so that the peak spectrum is flat across the SSB bandwidth? With my voice I had to considerably attenuate the low audio frequencies and boost the highs to achieve that.
There's a way to measure the transmitted spectrum using a P3, as described in the most recent version of the Owner's Manual. I ended up with: 50 Hz -16 dB 100 Hz -16 dB 200 Hz -16 dB 400 Hz -10 dB 800 Hz -16 dB 1.6 kHz 0 dB 2.4 kHz +3 dB 3.2 kHz +6 dB (The -16 dB at 800 Hz was based on someone's suggestion that little voice information occurs around that frequency. Otherwise it would probably have been -3 or -6 dB.) Al N1AL On Tue, 2010-11-16 at 14:29 -0500, Joe Subich, W4TV wrote: > >> Recommended TXEQ for the CM500 is max cut of the two lowest bands, > >> somewhere between 6dB cut and max cut of the third band, depending > >> on your voice, and flat (0 dB) for the remaining bands. > > While I agree with Jim on the lowest three bands, I strongly prefer > a 3 to 6 dB/octave rising characteristic for the top three bands > (e.g., +3, +5, +6 or +6, +10, +12). The rising characteristic helps > considerably with "clarity" and the ability to cut through the crud. > > 73, > > ... Joe, W4TV > > > On 11/16/2010 12:22 PM, Jim Brown wrote: > > On 11/15/2010 7:35 PM, Chris Hembree wrote: > >> Just got my CM 500 today. Would someone please tell me what the black box > >> with 2AAA batteries is for. > > > > It's for when you want to use the mic with something that does not > > provide voltage for the electret element. Contrary to what some Yamaha > > descriptions says about the mic, it is an electret mic, not a dynamic > > mic. You do NOT need it with a K3. Simply plug it into the rear panel > > mic connector, turn on the bias (see the manual), and adjust levels just > > like you would with any other mic (again, following the directions in > > the manual. > >> Plus how do you like the mic on the cm500? > > > > I love it, and so do most who have used it. It provides very clean > > audio, and, using TXEQ can easily be made very competitive for > > contesting and DXing, or more mellow for casual rag chewing. It sounds > > better than most Heil mics I've heard. Recommended TXEQ for the CM500 > > is max cut of the two lowest bands, somewhere between 6dB cut and max > > cut of the third band, depending on your voice, and flat (0 dB) for the > > remaining bands. Use the LOW setting for Mic Gain in the Menu. > > > > 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 > > > ______________________________________________________________ > 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 ______________________________________________________________ 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
