Bipolar PI MD with GB and DD Coil

[Detectorist#1]

Hi Ahmat,
Извиняюсь, ето моя ошибка. Правилное имя LM393P. Sorry, the right name is LM393P.

[pechkata]

Yes, me and GeoMax have PCB files for this project but they will be posted after serious tests in real fields.

What happened to the tests - 20 days have passed...?

[Detectorist#1]

Hi pechkata,
The boards from China are here. I hope, in next two weeks they will be assembled. The tests will be performed when the weather allows.

[Detectorist#1]

Hi pechkata,
It is very interesting what news you have for this problem -
"I glued 3 pieces of circuit board.
All three work differently.
One of them works like yours."
If only one board works properly - where is the problem?

[pechkata]

Hi pechkata,
The boards from China are here. I hope, in next two weeks they will be assembled. The tests will be performed when the weather allows.

Hello Detectorist#1
We won't see anything, neither boards nor video test...
We're just scratching our fingers on the keyboard...

[GeoMax]

Hello Pechkata,

be patient... Detectorist#1 may not be finished with the board assembly and testing yet. Here's a little preview of what to expect. Each detector (Bipolar PI and TX-Pulse Mode design) has a main board and a power supply board to keep the entire design compact and fit into a standard Hammond case.

[karakus]

PCBs look nice I'm waiting to build the circuit

[Prince Zhakata]

Hi Prince Zhakata,
And when the target changes the RX answer, this automatic Ground balance what will do?

Last time when i designed a metal detector without ground balance, hey it was like what...
I can start to detect the ground an a meter with my search rised imagine if put it about 2 to 3 inches on the ground to search it was like Searching with a huge metal on the search head ot like i incase the coil in metal cover just the ground iron mineralised soil.

[Prince Zhakata]

Automatic ground balance traces ground mineraization changes and cancels it automatically leaving targets signals detection without huge back ground, ground mineraization noise to some limits.