[Elecraft] [K3] The Way We Rank Receivers (long)

[Walter Underwood]

> On Oct 25, 2016, at 2:31 PM, Edward R Cole <kl7uw at acsalaska.net> wrote:
> 
> I wonder where in the world one sees a 20m noise floor that low when antenna is connected?  Only when I lived off the grid running on battery power did I see S0 noise on my radio (3.9-KHz with TS180S from a dipole). 

Good point. Looking at the photo of my KX3 on top of Mount Willson in Henry Coe, I see two bars on the S-meter on 20 meters. That is miles from Silicon Valley. It was quiet and lovely, I could hear everybody. The filters were wide open, preamp on, and NR off. Zoom in and you can see for yourself.

https://www.flickr.com/photos/walter_underwood/17417496311/in/album-72157652448882921/ <https://www.flickr.com/photos/walter_underwood/17417496311/in/album-72157652448882921/>

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)