[Elecraft] KDSP2 and Spectrogram

[Dave]

Hi Gang

My KDSP2 arrived yesterday, took a couple of hours to build and install.
Works fine on air... However, tonight I hooked up Spectrogram and a noise
generator. The filter doesn't look as narrow as I would have expected and
appears no narrower than about 200 Hz - even when set to "50 Hz". Settings,
CW, 700 Hz centre frequency and de-noiser off.

Has anyone else checked theirs and am I doing something wrong?

Thanks

Dave, G4AON
K2 #1892