Raphael £¬
I know that the 22M input impedance becomes 244.5 ohms, which cannot match the common 1m diameter loop. I don¡¯t know if the early resonance is caused by the large inductance of the TC1-1t+ I used. I will try to wind one myself. balun, but I would say that this kind of test can tell if the input impedance of the amplifier is as expected
