Construction of a 9:1 unun. Post 2169.
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=L4jGNFGN-RQ Thanks to Sparkie (2E0VOV) for this simple, concise, and easy to understand project. For those of us using random long wire antennas, a 9:1 unun is almost a necessity if we hope to avoid serious SWR mismatches to our equipment. According to Sparkie, materials and tools for this useful antenna accessory are readily available: "Welcome to another project.. The core used is a T200-2 with 9 trifilar turns of enamel wire. The box is 120mm x 80mm. All bolts are stainless!. An easy project to home brew and cheap to build. Some of my equipment.. FT817 radio https://amzn.to/2PIvcGY 17m whip antenna https://amzn.to/2Q6qVw5 20m whip antenna https://amzn.to/2zjdcsm 10m Antenna pole https://amzn.to/2TpkFyp Antenna Analyser https://amzn.to/2Q7FKP4 73 Sparkie 2e0vov" ----- For the lates