Most ham radio operators will build an antenna of some sort when they first start listening or transmitting, whether it’s a simple dipole, a beam antenna like a Yagi, or even just a random wire ...

It’s a dilemma many hams face: it’s easy to find yourself with a big spool of RG-11 coax cable, usually after a big cable TV wiring project. It can be tempting to use it in antenna projects, but the ...

Something that is as ubiquitous as power outlets. Coaxial cable. Even older homes will have coaxial runs that are accessible without ripping up a wall. If only there were a balun out there that could ...

I suppose someone could build a directional 75-300 Ohm balun, but I've never seen one. Put F-59 connectors on the end of your coax and a 75-300 Ohm on the far end.

This chapter excerpted from Sevick’s Transmission Line Transformers describes the balun as a subset of transmission line transformers with an in-depth treatment of most used types. Schematics and ...

Balun bandpass filters represent a critical advancement in radio frequency (RF) circuit design, integrating the dual functions of balanced-to-unbalanced conversion and frequency selection. These ...