Hobby Hybrid MD1

[Qiaozhi]

Hi pechkata,
Now, the tests on the air points very good sensitivity and discrimination Fe/non-Fe. I hope, soon I will make tests on the real terrain. For now, I await comments on the schematic solution from serious designers of PI MD.

Air tests can initially be useful, but also misleading.
The design is not really worth anything until you get it off the bench and test it in the field.

A good example is a Viking 5, which is a simple non-motion VLF detector. It tests superbly on the bench with excellent ferrous rejection. But try it out in the field, and it's basically unusable.