1:1 50 Ohm Voltage Balun for HF bands

Here’s my small project of an easy to make 1:1 HF Voltage Balun. I have installed this balun between the input of my HF fan dipoles and the RG213 coaxial cable going down to the transceiver. Below there are photos that show how I’ve constructed this voltage balun. Note that this is not a current balun. The balun presented here has also a DC isolation protection between the input and…

EAntenna balun (problems..) on the EA1015204080DXS fan dipole

After several weekends on the roof tuning without any success this antenna, I decided to take the choke away. Below is what the interior of the EAntenna balun looks like. It’s effectively a 1:1 current balun (not a voltage balun) also called choke, that is the inductors are in series with the coaxial cable coupled around the magnetic core and exiting at the dipoles’ entry point. After removing the choke,…