Design and testing of an inexpensive HF (up to 30MHz) antenna tuner for reception

Circuits and details to be uploaded soon! For now have a look at my constructed circuit above. The matching network has beed designed for a Pi- orientation: Input and output ports see (each) a capacitor in parallel and between these two is in series a capacitor or an inductor (selectable through a switch). In the middle it’s a single sided copper PCB with the copper removed in some places to…