https://rfcorner.in/tags/ft8-amplifier/Recent content in FT8 Amplifier on Dhiru's NotebookHugoenSat, 20 Jun 2026 00:00:00 +0000https://rfcorner.in/posts/baby-qro-switching-amplifier-v15-2026/Sat, 20 Jun 2026 00:00:00 +0000https://rfcorner.in/posts/baby-qro-switching-amplifier-v15-2026/<h2 id="related-work">Related work</h2> <ul> <li><a href="https://rfcorner.in/posts/baby-qro-switching-amplifier/">Baby QRO Switching RF amplifier for HF</a></li> <li><a href="https://rfcorner.in/posts/digitally-adjustable-pa-supply/">Digitally Adjustable RF PA Supply</a></li> </ul> <p>A new generation of the <code>Baby-QRO switching amplifier</code> targets 25W to 50W of RF output for <code>FT8</code> and other FSK modes.</p> <p>It is designed to operate with a <code>Bare</code> DDX-Commercial transceiver board and has an inbuilt T/R switch.</p> <h2 id="design">Design</h2> <p>3D render:</p> <p><img alt="Baby-QRO amplifier v15 render" loading="lazy" src="https://rfcorner.in/images/3D-Render-Baby-QRO-Amp-v15.png"></p> <h2 id="results">Results</h2> <p>To be tested!</p> <h2 id="usage">Usage</h2> <p>The input RF comes directly from the Si5351 (3.3V). You can use our <a href="https://github.com/kholia/HF-PA-v10/tree/master/CW-SigGen">CW-SigGen</a> project to generate a suitable test signal. It is also possible to pair this amplifier with our <a href="https://github.com/kholia/Easy-Digital-Beacons-v1">Easy-Digital-Beacons-v1</a> project.</p>