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spreading loss

1. n. []

The additional loss in amplitude of an electromagnetic wave emitted by an electromagnetic propagation or dielectric propagation measurement compared to that of a plane wave. The spreading loss depends on the geometry of the transmitter-receiver array and also on the dielectric properties of the formation. The same effect also causes a small correction to the propagation time.

See: attenuationbroadside arraydielectric propagation logelectromagnetic propagationelectromagnetic propagation measurementendfire arrayplane wave