Building a 10m Coaxial Vertical for home

Given some of the activity that I'm seeing on 10m, last night I went to build a quick and dirty 10m vertical dipole but found I was lacking a couple of the bits that I wanted, so given that I was going to ave to buy some things anyway, I decided to make something a … Continue reading Building a 10m Coaxial Vertical for home


CW Audio Band Pass Filter

Recent listening to the bottom end of 40m during the CW section of the OC-DX contest really brought home how close CW signals generally are and just how useful a CW filter would be. A little bit of research led me to the section titled "Inverting Band Pass Filter Circuit" at this site. Specifically this … Continue reading CW Audio Band Pass Filter