If your TX bandwidth filter is set for 200 to 2900, I don't see how EQ settings much outside that range will do anything. So, I set 32, 63, 8K, 16K all to -12dB. The 125 and 4K settings, while outside of your TX bandwidth, may still have a mild effect (if any) because of the skirts of the EQ response for those ranges (I'm not sure how the DSP EQ algorithms mirror analog behavior). Of course, if I'm wrong, I'm sure this knowledgeable group will straighten me out!
I use the Heil headset, and have had good results as follows for general (non-DX) QSOs: 125 -3, 250 -2, 500 0, 1K +2, 2K +5, 4K +6 Remember that each little "tick" on the EQ chart represents 3 dB. The above settings give a fine crisp response with the Heil, while leaving some of the pleasant lower end. Disclaimer: this reflects my preference to avoid the big bassy sound on SSB. You may feel differently. For DX punch, you might try this as a starting point: 125 -12, 250 -6, 500 -3, 1K +3, 2K +6, 4K +9 The idea is to concentrate your TX energy in the part of the vocal range that provides the most intelligibility, and ditch much of the low end that robs power and does nothing for clarity. It occurs to me that if the TX bandwidth filter is not first in the DSP audio chain, then excessive low/high audio frequencies might make things get really strange when they hit the compander/compressor algorithms. In other words, the raw mic audio should go through the TX filter first, then the other processing later. I'd love to have someone confirm these DSP "circuit" arrangements. _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
