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Couple into tall poles with a Rowland Ring Here's another case where instead of carrying a big antenna you find a metal pole and try to couple in to it. A Rowland Ring is one way you can couple into it without making direct electrical contact. It's a curved coil of wire wrapped around the desired radiating element. A series variable capacitor tunes out reactance. Experiments were done in the 1960s using them to load up trees in the Vietnamese jungle. Unlike my loading up of a light pole I can't yet claim huge amounts of success with this technique. Hence these videos are presented for the curious to take the idea further. PE4BAS blog has a write-up that could be of interest.     Disclosure: I receive a small commission from items purchased through links on this site. Items were chosen for likely usefulness and a satisfaction rating of 4/5 or better.

Books by VK3YE Ham Radio Get Started (USA) Australian Ham Radio Handbook (Aust) Hand-carried QRP Antennas More Hand-carried QRP Antennas 99 things you can do with Amateur Radio Getting back into Amateur Radio Minimum QRP Illustrated International Ham Radio Dictionary Make your Passion Pay (ebook writing)   All material on this site (c) Peter Parker VK3YE 1997 - 2024. Material may not be reproduced without permission. Read privacy policy.