Hi Don, The problem that I am experiencing is that when I completed the DSP board last night, I noticed that the default setting of the SSB DSP filter 1 (low pass filter) did not sound like its high frequency audio bandwidth was wide enough. The filter setting 2 default setting of 2.5 KHz had a higher frequency of noise content. When I tried to change the upper cut off frequency following the instuctions on page 26, I noticed that any setting greater than 2.5 through LPF resulted in a narrower noise bandwidth although the display changes normally according to the instructions. I have experimented with it further today and am experiencing the same problem. Also I have noticed that when I advance the low pass filter cutoff from display S1 00 2.5 to S1 .45 2.5 it sounds like I have selected a CW filter from the change in the noise bandwidth. S1 .40 2.5 sounds like the correct bandwidth. It is strange that the low frequency cutoff filter characteristics change very abruptly over 400 Hz. _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft
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