[Elecraft] Alligators and Bats

[Tree N6TR]

Thanks for the note Ed.

> If you're expecting a high fidelity from your K2, you will be disappointed!
> It is a good sounding radio as amateur radios go, but the strength in the
> K2's receiver is in being able to pull weak signals out in the presence of
> close-in strong QRM.   Hi-fi it DEFINITELY isn't.  Any receiver whose
> bandpass is wide enough to sound like your FM audio system will be far too
> wide to be useful on the amateur bands except in extremely unusual
> conditions.

When I mention the hi-fi aspect, I am not talking about frequency response.
I am more interested in how the system responds to multiple signals in the passband
(which will include some noise).  I am not looking for infinite S/N ratio,
rather - a true representation of the spectrum that I am listening to
without distortion.

> The K2's filters will allow you to reduce some band noise and a lot of QRM.
> If you want to come close to eliminating background noise, try a ClearSpeech
> DSP between the K2 and an external speaker.  If you work CW, the K2's Audio
> Filter option will do almost the same thing but it's far too narrow to work
> on SSB.

I operate 99.9 percent CW.  Getting narrow isn't my goal - having about 400 or 
500 hertz bandwidth is sufficient, and after that, I let my brain do the
rest.  I just don't want the radio adding stuff that isn't relevant for my
brain to deal with.

Tree