[Elecraft] K3 - A case for wider roofing filters?

[Barry N1EU]

Joe Planisky wrote:
> 
> This required 6 dB of gain on the 500 Hz filter.  However, I noticed that  
> boosting the filter gain by 6 dB also boosted the noise floor by 6  
> dB.  In other words, the S/N ratio at 500 Hz bandwidth was 6 dB worse  
> than at 550 Hz bandwidth.  After thinking about it for a moment, I  
> realized it made perfect sense.  
> 
Not sure if it makes sense.  My experience is that the signal and noise are
both attenuated or boosted together and the S/N remains the same.

73,
Barry N1EU

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