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Главная » 2022 » Январь » 7 » A ham radio antenna that fits almost anywhere
19:49
A ham radio antenna that fits almost anywhere
Al Williams WD5GNR writes on Hackaday about a video by Peter Waters G3OJV about a budget basic antenna for a small garden

Peter Waters G3OJV knows the pain of trying to operate a ham radio transmitter on a small lot. His recent video shows how to put up a workable basic HF antenna in a small backyard. The center of the system is a 49:1 unun. An unun is like a balun, but while a balun goes from balanced line to an unbalanced antenna, the unun has both sides unbalanced. You can see his explanation in the video below.

The tiny hand-size box costs well under $40 or $50 and covers the whole HF band at up to 200 W. The video shows the inside of the box which, as you’d expect, is a toroid with a few turns of wire.

The proposed antenna is an end-fed dipole fed with the unun. These are somewhat controversial with some people swearing they can’t work and others saying they are amazing. We are guessing they may not outperform a perfect antenna system, but we also know that you can have a lot of fun with almost any kind of radiator.

See the video and post on Hackaday at
https://hackaday.com/2022/01/06/ham-antenna-fits-almost-anywhere/ Поделитесь этой страницей
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