QEX magazine rejected an article about the loop antenna and autonomous controller design. Sad, but not unexpected. Meanwhile, I have been using the loop antenna without the controller for FT8 on 40, 30 and 20 meters. I am using my old FT-100D mobile rig, which hates a SWR over 1.5:1. A small tuner helps bring that to 1:1 and lets me output up to 100W if I need that much power.
When COVID-19 is over I am thinking about building an entire radio into the antenna with the tuning controller. Why not? Wi-Fi will be used to select a frequency, TR switching and send audio for FT8.