Antenna feed lines and coax cablesHome : Antennas : Feed Lines
A T-Match ATU - An homebrew antenna tuner project
Install a PL-259 on an RG-8X - A better way to install PL-259 connectors on RG-8X type coax by Dan Richardson, K6MHE
Do You Need an Antenna Tuner - Maybe yes, maybe no. It all depends on the type of antenna and feed line you're using. QST Article in pdf format
Idiot's guide to coaxial cable - A very beginner's guide to coax cables. Characteristics, detailed comparison of typical coaxial cables, commonly used connectors, and a few words about SWR.
Feeding an End-Fed Antenna - End-Fed antennas are NOT balanced systems; but neither are verticals, ground planes, discones, windoms, zepps, Marconis, half-slopers, et al. Additionally, the low-impedance antenna port of your transmitter/receiver is not balanced.
A simple SWR Meter - This article describes a simple QRP SWR meter built using readily available parts.
The Ultimate transmatch - Usage and benefits of transmatch. A pdf document from a QST article made available for novices and beginners by ARRL
Understanding Standing Wave Ratios SWR - We worry a lot about Standing Wave Ratio (SWR) in amateur radio since SWR is one indication of how well our antenna system is working. Most HF transceivers and antenna tuners have built in SWR meters. SWR is a measure of a transceiverís output power verses the portion of that power reflected by the antenna system By Ken Larson KJ6RZ
Antennas and Feedlines - Long article on antennad and feed lines
Wireless Antenna Connectors - A chart and picture of some of the most common connectors
Antenna Tuning - Tuning mobile and base antennas, measuring SWR.
Building High Power, High Q, Loading Coils - This page describes the loading coil (inductor) that W8WWV built for my center-loaded 160 meter (1.83 MHz) vertical antenna.
Rainbow Antenna Analyzer - A small and inexpensive measurement device designed to determine antenna performance across the amateur bands through use of automatically collected SWR readings
Using Delta Matching on HF Beams - Using delta match with HF antennas design
L Match ATU for QRP - The L match is designed for the matching of random and long wires and should not be mounted in a metallic box/case, i used a small plastic food container which was the most expensive part of the project.
AA3RL Transmission Line Calculator - Excel spreasheet that calculate virtually every transmission line parameter that one may need. Include Length conversions, Reactance and Length of Stubs
Coax cable loss table - Coaxial cable loss in db per 100 ft.
Build An LF Antenna Analyzer - A Portable Low Frequency Antenna Analyzer, For those of us who like to play with antennas on the ham bands, one of the handiest tools to have around the shack is an "antenna analyzer". These gadgets combine a signal generator and standing-wave ratio (SWR) sensor in a small battery-powered unit.
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