The exception, I assume, is with a strong local signal in the passband that causes clipping or requires reduction in rf gain. I use the notch filter for that OR get on the same tx phase with him.
Glen W6GJB On Fri, Oct 19, 2018, 8:51 AM Frank Kirschner <[email protected]> wrote: > Yes, that makes sense. I should have realized that the narrow filtering > had to be done somewhere. > > Frank > > On Fri, Oct 19, 2018 at 11:19 AM George J. Molnar <[email protected]> > wrote: > >> If I recall correctly, the S/N calculation is made in WSJT-X based on a >> fixed value somewhere around 2.8 kHz. Applying a wider or narrower >> bandwidth to the decoder will provide numerically different values, but not >> affect decoding performance UNLESS the narrowed bandwidth had an incidental >> improvement in noise rejection, AGC capture, or some other condition. >> >> It may look good on the screen. It may sound better to your ear, but the >> software doesn’t really care. >> >> >> >> *George J Molnar* >> Arlington, Virginia, USA >> KF2T - FM18lv >> >> _______________________________________________ > wsjt-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/wsjt-devel >
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