2002 - 2020 i1wqrlinkradio.com
Balanced feed with coaxial line

A previous model, fed with 300-ohm Twin-Lead and a T-match, had just beentaken down due to the unsatisfactory performance
post 06 Nov 2020

Antenna Feed Lines Links


Finding the Velocity Factor of Coaxial Cable
a tutorial in use of Velocity factor solver to find the velocity factor of a sample coaxial transmission line using an antenna analyser

Ham Radio Ladderline, KV5R
First let's dispel the greatest myth in antenna theory: Antennas must be resonant to be efficient. Baloney! It just ain't so!

Home Brewed Antenna Ladder Line, AG5GW
I'd like to show you how I solved this problem, quickly and cheaply, and to great effect

Homemade Open Wire Feedline, W1AEX
With a few simple tools and a little effort you can make your own open-wire line that is superior in many ways to the window line that is commonly sold by antenna product vendors