Am loop antenna diy
Sky harbor terminal 4 arrivals
The rotation of the magnetic loop allows moving it’s rather sharp null around to engage noise sources or other QRM, especially plasma TV RFI. The antenna has equal and opposite nulls (nominally). C laims for this antenna state that it should function from 20 kHz to over 50 MHz, with nulls approaching 30 dB deep. (I have tested the loop from ...
Conventional loop antennas are resonated with a capacitor across the loop terminals and the signal is taken as the voltage across the terminals. This design does not resonate loop, instead it attempts to present as low an impedance across the terminals as possible and thus senses the loop current as opposed to the voltage.