[K3] Roofing Filter Question

[Elecraft mailing list]

I understand that the DSP is after the roofing filters but I don't understand why one can dial in a bandwidth wider then the installed roofing filter. When I do so, am I hearing the skirts of the filter and the attenuated signals outside of the filter's passband as well? Thank you. 
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[Joe Subich, W4TV-4]

If one sets a DSP bandwidth greater than the wisest installed roofing
filter the bandwidth will be determined strictly by the characteristics
of the roofing filter and the lowpass filter (4.2 KHz) in the audio
chain.

73,

    ... Joe, W4TV

On 6/30/2016 10:10 AM, rick jones via Elecraft wrote:

> I understand that the DSP is after the roofing filters but I don't understand why one can dial in a bandwidth wider then the installed roofing filter. When I do so, am I hearing the skirts of the filter and the attenuated signals outside of the filter's passband as well? Thank you.
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