ELF CIRCUIT DESIGN
An updated circuit design to measure ambient Extremely Low Frequencies (ELF) is presented here with some modifications from earlier experiments. The circuit design itself is presented, as is the design for a loop antenna that is directional, meaning it can be rotated on its pole to determine the location of the ELF signal(s) being received by the circuit. Both sensitivity and bandwidth performance appear to be noticeably improved with this improved design. Further modifications will be added in later Carnicom papers. Those with electrical engineering knowledge are welcome to comment on the circuit and any inherent weaknesses or suggested improvements. It is advised that others around the globe construct this circuit, including any improvements that can be made, and report their results to the Carnicom Institute.