List of North American broadcast station classes

Apr 20, 2026 - 21:44
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List of North American broadcast station classes

FM

← Previous revision Revision as of 16:13, 20 April 2026
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Historically, there were local "Class A" frequencies (like AM radio's class C stations) to which only class A stations would be allocated & the other frequencies could not have a class A. According to the 1982 FCC rules & regulations, those frequencies were: 92.1, 92.7, 93.5, 94.3, 95.3, 95.9, 96.7, 97.7, 98.3, 99.3, 100.1, 100.9, 101.7, 102.3, 103.1, 103.9, 104.9, 105.5, 106.3, and 107.1. Stations on those 20 frequencies were limited to having equivalent signals no greater that 3KW at {{convert|300|ft|m|0|abbr=off|sp=us}} above average terrain.
Historically, there were local "Class A" frequencies (like AM radio's class C stations) to which only class A stations would be allocated and the other frequencies could not have a class A. According to the 1982 FCC rules and regulations, those frequencies were: 92.1, 92.7, 93.5, 94.3, 95.3, 95.9, 96.7, 97.7, 98.3, 99.3, 100.1, 100.9, 101.7, 102.3, 103.1, 103.9, 104.9, 105.5, 106.3, and 107.1. Stations on those 20 frequencies were limited to having equivalent signals no greater than 3KW at {{convert|300|ft|m|0|abbr=off|sp=us}} above average terrain.


=== FM zones ===
=== FM zones ===
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'''Zone II''' includes the remainder of the [[continental US]], plus [[Alaska]] and [[Hawaii]].
'''Zone II''' includes the remainder of the [[continental US]], plus [[Alaska]] and [[Hawaii]].


In Zones I and I-A, there are no Class C, C0, or C1 stations. However, there are a few Class B stations with [[grandfather clause|grandfathered]] power limits in excess of 50 KW, such as [[WETA (FM)|WETA]] (licensed for Washington DC in zone I, at a power of 75 kW ERP), [[WNCI]] ([[Columbus, Ohio]] in zone I, at 175 kW ERP), [[KPFK]] (Los Angeles in zone I-A, at 110 KW ERP), and the most extreme example being [[WBCT]] ([[Grand Rapids, Michigan]], in zone I, at 320 kW ERP).
In Zones I and I-A, there are no Class C, C0, or C1 stations. However, there are a few Class B stations with [[grandfather clause|grandfathered]] power limits in excess of 50 KW, such as [[WETA (FM)|WETA]] (licensed for Washington DC in zone I, at a power of 75 kW ERP), [[WNCI]] ([[Columbus, Ohio]], in zone I, at 175 kW ERP), [[KPFK]] (Los Angeles in zone I-A, at 110 KW ERP), and the most extreme example being [[WBCT]] ([[Grand Rapids, Michigan]], in zone I, at 320 kW ERP).


== TV ==
== TV ==
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