[Elecraft] KX3: nearby noise post-mortem

[Nicklas Johnson]

Interesting, and if I may ask a potentially-dumb question, what do we
really mean when we use the word "isolation" in this context, and how does
it provide the benefit of keeping the buzz out of the detector (or to ask
the question in the reverse, how does the buzz get in, in the absence of
additional isolation)?

   Nick

On 10 February 2014 08:40, Ralf Wilhelm <ralf at super-deutschland.net> wrote:

> Hi Nick,
>
> Turning on the preamp increases the isolation between the local oscillator
> and the antenna port. I also wasn't sure if my "buzz" went away when I
> turned on the preamp (I couldn't hear it any more) but I used the spectral
> display of the MixW-Software and the microphone of my laptop to check and I
> found it didn't go completely away (was still visible in the waterfall) but
> got much weaker...
>
> --
*N6OL*
Saying something doesn't make it true.  Belief in something doesn't make it
real. And if you have to lie to support a position, that position is not
worth supporting.