[ivconic]

Originally Posted by Esteban

No need extra amplificative circuit. But yes, no contact via "normal" cap. between antenna and pin 3 because if you connect the capacitor you catch all type of interferences. This example can be a good point for to understand why direct contact is bad. Here there are maybe only 1 pf. And for to understand that you must ellaborate your own sensors.

Zahori works, no a fake, and as I repeat 1,000 times, no needs the switch and other potentiometers wich causes confussion, only one control, can be the 10 K pot. or the volume 22 K in original schematic. No connection pin 9 of 4066 to ground

Also we assure the detection via magnetic loop + Zahori = 2 detectors. Because Zahori is for electric portion.

Also I post image of isolation of three antennas via fiberglass pieces.

But you follow other way... hear other bell...

Esteban, the way you described it - it is still capacitive coupling. So, maybe replacing 20pF with some smaller capacitance will do the job also?
Regards