With just a few common components and some simple soldering, this DIY HF antenna preselector drastically improves the listening experience on your shortwave radio, especially with a long wire antenna. It's a small project with a huge impact on signal clarity and overall reception quality.
Chapters: 0:06 Short Demo 0:56 Description 2:29 Parts 3:22 Shielded box 5:04 In Real Conditions 5:58 First test on 19m Band 8:03 On 22m and 25m Broadcast 9:52 40m Amateur Band 10:40 Without and With Preselector 11:41 Conclusion 12:16 Building