Tribute to Andy Flind

[Geo]

Originally Posted by Esteban

Horizons? All detectors are affected by magnetic field of Earth. When you have adjusted excluding it, well the difference is another cause, almost always metal buried many years. Of course, you can use a kind of dish connected to - , but you must found distance between dish and coil.

I modificate the old I have, but now with preamp. Look shielded cables in input, potentiometer and main PCB input. Also you can try shielding the core or the coil, deppend what you use. I use core and aluminum loop.

Regards

Thank you Esteban.
I must try another coil so to have the ability to shield it.
Now the coil has diameter about 10 cm. Who is your opinion??? to winding a biger coil or no.

Regards