[Elecraft] [K3] Want to buy a K3

[Don Wilhelm]

Bill,

Where you set the "kick-in" point is largely up to your ears.  The slope 
on the crystal filter is more gentle than the steep sided DSP filters - 
as a result, the crystal filter actual width will vary depending on 
whether you refer to the -3 dB point, or the -6 dB points or even the 
-10 dB points.
In other words, if you activate a crystal filter at a width wider than 
the DSP filter width, you will have a passband that is more 
representative of the crystal filter passband than the DSP passband..  
So the real answer depends on your ears and what you want to hear.

73,
Don W3FPR

Bill VanAlstyne W5WVO wrote:
> You bring up the interesting question of configuration for the narrow 
> filter -- i.e., where do you set it to "kick in"? I opted for 1.9 kHz, you 
> opted for 2.1 kHz. I'm curious as to where others have configured the 1.8 
> kHz SSB filter to kick in -- and why.
>
> Bill W5WVO
>   
>