Editing Relative transmission level

In [[telecommunications]], '''relative transmission level''' is the ratio of the [[signal]] [[Power (physics)|power]], at a given point in a [[transmission system]], to a reference signal power. 

The [[ratio]] is usually determined by applying a [[standard test tone]] at [[zero transmission level point]] (or applying adjusted test tone power at any other point) and measuring the [[Gain (electronics)|gain]] or loss to the location of interest. A distinction should be made between the standard test tone power and the expected [[median]] power of the actual signal required as the basis for the design of transmission systems.

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[[Category:Radio frequency propagation]]