What is service contour?

Service Contour

In US broadcasting, service contour (or protected contour) refers to the area in which the Federal Communications Commission (FCC) predicts and allows coverage.

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Some articles on service contour:

Service Contour
... In US broadcasting, service contour (or protected contour) refers to the area in which the Federal Communications Commission (FCC) predicts and allows coverage ... The FCC calculates FM and TV contours based on effective radiated power (ERP) in a given direction, the radial height above average terrain (HAAT) in a given ... AM contours are based on the standard ground wave field strength pattern, the frequency, and the ground conductivity in the area ...
Broadcast Relay Station - Relay Transmitters By Country - United States - Radio
... no limit on height for fill-in translators (those that exist within the primary service contour of the primary station) ... that translator or booster exists within the primary service contour of the parent station (they can only fill in where terrain blocks the signal) ... Translators outside of a primary station's service contour cannot be owned by the primary station, nor can they receive any financial support from the primary station ...
HD Radio - Overview - FM - Bandwidth and Power
... with the remainder used for stereo, RBDS, paging, radio reading service, rental to other customers, or as a transmitter/studio link for in-house telemetry ... have the option to discontinue existing subcarrier services (usually at 92 kHz and 67 kHz) in order to carry extended HD Radio, though such services can be restored through use of the ... and all of the receivers that use the discontinued services ...

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