Lockheed Martin in the course of designing frequency radar circuits and the type and method of using radar on airplanes in the category of fighter or passenger or commercial and space and satellite has special conditions that a frequency metal detector or ground handy radar or frequency detectors with VDI number in Edit and Threshold of surface and volume with According to the principles of radar circuits, low frequency has the ability to distinguish all types of metals, especially gold, in depth with special conditions, such as Lockheed Martin’s frequency radar.
