Lrl from Italy

[liudengyuand]

I think your oscillator should be shielded by a tin box separately

[FrancoItaly]

Originally Posted by liudengyuand

I think your oscillator should be shielded by a tin box separately

Of course, but we must not forget that even the power must be decoupled.

[liudengyuand]

The biggest problem is that the specific frequency responds to the metal, or a certain frequency, or any frequency,

[FrancoItaly]

Originally Posted by liudengyuand

The biggest problem is that the specific frequency responds to the metal, or a certain frequency, or any frequency,

In my opinion there is no specific frequency for metals, the phenomenon exists in a wide range from Khz to infrared. All that remains is to experiment and it is very important to have a field where to do the tests, it is necessary to bury the metals, for example gold / silver and wait at least a few months or less, it depends on the type of soil.

[liudengyuand]

If it has nothing to do with frequency, there is no need to adjust L1 and C10, their resonance frequency is much higher than 8MHZ

[folharin]

Originally Posted by FrancoItaly

In my opinion there is no specific frequency for metals, the phenomenon exists in a wide range from Khz to infrared. All that remains is to experiment and it is very important to have a field where to do the tests, it is necessary to bury the metals, for example gold / silver and wait at least a few months or less, it depends on the type of soil.

exactly sir franco italia !!

[liudengyuand]

I have successfully increased the distance to about 50 meters

[liudengyuand]

Has anyone experimented with using an aluminum box to install the entire circuit? Will it have any effect?