[Elecraft] K3s Notch Filter

[Jim Brown]

On 5/12/2019 4:17 PM, Rick Bates (WA6NHC) wrote:
> The use of legal limit or not isn’t the issue; as it may be needed to make the DESIRED contact, typically often required on the lower bands.  Your ability to hear such a strong signal has many factors, including band conditions and proximity.

Right. As to decoding weak stations around much, much stronger ones -- I 
face that often on 160M and 6M, which is 99.9% of my FT8 activity. My 
solution is to set the input gain to the decoder so that the strongest 
signals don't cause the A/D to clip, but raise the level of the weaker 
stations so they are above the bottom of the A/D. The indicated input 
level is then about 70 dB. Clipping is indicated by the green vertical 
bar turning red.  And I run with slow AGC.

73, Jim K9YC