Any type of Frequency Detector or Frequency Metal Detector uses a straight Line or two different straight Lines during transmission and reflection and when the fields return to the direction of the searcher or antenna or loop or coil or Frequency Sensor the state of Frequency transmission is not disturbed or disturbed or In principle it is not interrupted and at the same time it has the reflection of the fields in a straight line or two different straight Lines the Frequency Metal Detector or Frequency Detector can recognize and Separate and Discriminate the fields and this is a factor that affects the performance of the Frequency detector Or any type of Frequency Metal Detector is called independent emission and reflection
