https://stream.echo6.co/videos/watch/15904be1-0804-43af-9572-2ad720bb84f1 A trap dipole is a good choice if you only want operation on two or three bands and don't want to readjust an antenna coupler to change between them. This video describes a trap dipole for 7 and 14 MHz with emphasis on the 1:1 current balun and 14 MHz trap. Adding 80 metres: Loading coils can be added to provide 3.5 MHz capability with very little extra room required. My loading coils used 85 turns of 2mm (od) thin insulated wire closewound on a 55mm diameter pipe. There will be some interaction between the loading coil and the 7 MHz element. Add extra wire to bring it back into the 7 MHz band. The 3.5 MHz performance won't be as good as a full sized dipole, though some excellent contacts are still possible. The bandwidth will be narrow so I suggest using an antenna coupler at the transceiver end. Further ideas on the loading coil at: http://users.picknowl.com.au/~wavetel/antennas.htm Contents 0:00 Introduction 0:23 Source information 0:48 1 to 1 balun 1:11 Making the balun 2:33 Making the traps 2:54 Testing/adjusting traps 5:32 Antenna construction 5:39 Final dimensions 5:42 Summary 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 to see if any appeal,, 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) Wed, 06 May 2026 00:57:46 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/15904be1-0804-43af-9572-2ad720bb84f1 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.