https://stream.echo6.co/videos/watch/a086f8a4-71bc-4d29-8a9c-bd39d4758666 A ground tuning unit for HF QRP pedestrian mobile. A useful accessory to get the best from your trailing counterpoise. The 300pF capacitor came from an old AM radio. The toroid is a T68-2 with taps every 4 turns for each of the connections on the 6 position rotary switch. The variable capacitor and inductor are in counterpoise wire line. PS: If you liked this video please consider supporting Amateur Radio VK3YE by: Subscribing on YouTube,, Checking my books page at https://books.vk3ye.com, Shopping on Amazon via: https://amzn.to/3iiDQXv, or, Shopping on eBay via: https://ebay.us/i9DuWP (then if you buy something I'll get a small commission at no cost to you) Sat, 09 May 2026 09:25:46 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/a086f8a4-71bc-4d29-8a9c-bd39d4758666 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.