Build swr meter, Antenna Tuner, and EFHW Coupler-Amateur Radio News 25-09-2026

Very Simple SWR Meter Circuit - Reflectometer- low cost

detail : https://www.electronics-notes.com/articles/antennas-propagation/vswr-return-loss/vswr-reflectometer-bridge-circuit-simple.php

Build this Universal SWR bridge easy

detail: https://kitsandparts.com/bridge.php

A Homebrew Z-Match Transmatch for Qrp Operatios ( Antenna Tuner)

detail : https://wb3gck.com/2020/04/18/a-homebrew-z-match-transmatch/

End Fed Half Wave Antenna Coupler (EFHW) with Calculator

detail: https://m0ukd.com/homebrew/baluns-and-ununs/end-fed-half-wave-antenna-tuned-coupler-efhw/