Principle
The intensity of a source of radiation, e.g. a microwave transmitter, at any given location depends on the distance of this location from the (approximately punctiform) source. Actually, due to its antenna geometry, a microwave transmitter can only be regarded as a punctiform source of radiation at long distances, which is why it is described as a virtual source for shorter distances.
Benefits
Tasks
The radiation intensity of the microwave transmitter is measured for various distances and the position of the virtual source is determined.
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