led swr meter

Wire Antenna for 75 and 80 Meters - This article is about a wire antenna that covers the entire 3.5 to 4.0 MHz band with an SWR below 2:1 consists of two coupled dipoles, one resonant at about 3.5 MHz and one resonant at about 4 MHz, resulting in the low SWR

The EZ-Tuner - The "EZ-Tuner" is a homebrew automatic legal-limit antenna tuner that covers all amateur HF bands from 160-10 meters. Using a T-network design and controlled by a BASIC Stamp BS2sx microcontroller, the EZ-Tuner will match at least a 16:1 VSWR for either unbalanced or balanced transmission lines.

A Pocket-Size, Direct-Reading VHF SWR Meter - This easy-to-build LED bargraph SWR meter goes with you anywhere.