Frequency metal detector or any type of frequency detector with low frequency or multi frequency which has VDI number settings in Edit and Threshold of surface and SIZE designed according to the principles of radar has a high ability to penetrate deep into the ground and is one of the factors of penetration and separation and High power discrimination is the presence of an electromagnetic field with a positive electric charge in the frequency band of radars and this is also one of the issues that causes any type of frequency finder with VDI number settings in the Edit and Threshold Surface and the Size of penetration power to the depth of the ground in each have conditions