Directional AM proof of performance

Article Abstract:

Proof of performance and equipment performance measurements are two distinct requirements involving AM radio stations. While proof of performance is required of directional AM stations, equipment performance measurements are required of all AM stations. Proof of performance regulations delineate specific measurement locales to determine operating efficiency and proper antenna pattern.

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Directional AM field strength measurements

Article Abstract:

Directional AM radio stations are required by law to make field strength measurements under specific conditions using approved procedures. These include measuring at certain points within the station's signal strength, taking measurements within 120 days of the previous ones, and keeping accurate, detailed records of the results of each measurement.

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AM equipment performance measurements

Article Abstract:

The Federal Communications Commission has outlined specific guidelines regarding AM station equipment performance measurements. Measurements are required when a main transmitter is replaced or modified, or when station license conditions state they are needed. Different formulas are used depending on the emissions levels being measured.

United States. Federal Communications Commission

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