Bryant Sorensen (@bryant_s)
So, if 407.8 MHz is the 'zero bin', and you have a large negative value in dB at that point - isn't this what you want? You are putting a notch at that frequency...
Tony,Some clarification would help me. First - you say 'zero bin', but your X labels on the graphs show 405.5 to 410.0. ???Second - can you give the filter...
To more directly answer your first questions - you are experiencing idle tones. These are common in sigma-delta modulators, especially low orders. This is because...
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