[Elecraft] IF Filter Response relatively flat

[Karsten Eppert(DK4AS)]

I am not shure, if my CW-.filter(s) work(s) correctly because I find 
it/them rather broad regarding the shape factor. If the peak-width is 
set to approx. 150 Hz (0,20) the -6 db-width is around 200 Hz, but the - 
60 db-width is still about 1,6 khz. I don´t have precise measurement 
tools, so don´t take the stated values as absolute values, but I can´t 
be too far off. I wonder if I have built in a mistake and - if yes - 
with what method I can trace ist.
Has anybody checked the shapefactor of the CW-filter-chain at different 
settings?

DK4AS
Karsten Eppert

very happy owner of his K2