[Elecraft] K3 Audio Peaking Filter

[John Gibson]

Each Sunday evening, I use my K3 #820 to try to check into Kevin’s 20m Elecraft CW net. Kevin in Oregon is almost 1900 miles from me in Michigan, and I succeed only because I have a modest tri-band beam antenna at 60 ft.

Current propagation conditions make this especially challenging. Sometimes Kevin is so buried in noise that I find him only because I can recognize the rhythm of his sending. 

Last evening, conditions were poor. I tuned all around the net frequency and could hear nothing of Kevin. Then I turned on my K3's Audio Peaking Filter (APF), searched again, and found him, and he was loud! When I turned off the APF, he vanished. I did check into the net.

My K3's APF made all the difference between hearing Kevin and not finding him. I am impressed that it worked so well. I thank Wayne N6KR for creating this feature for the K3.

73,

John, no8v