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Power Legend: U=unlimited time, D=daytime power, N=nighttime power, CH=critical hours power. Class A unless otherwise specified. Omnidirectional antenna unless otherwise specified. A comma after the power indicates sunset. Whatever is after the comma is the night-time authorization, to avoid interfering with other, higher priority stations.
A clear-channel station is a North American AM radio station that has the highest level of protection from interference from other stations, particularly from nighttime skywave signals. This classification exists to ensure the viability of cross-country or cross-continent radio service enforced through a series of treaties and statutory laws.
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Because the AM broadcast band developed before technology suitable for directional antennas, there are numerous exceptions, such as the US use of 800 (kHz) and 900 non-directionally in Alaska, limited to 5 kW at night; and 1050 and 1220, directionally, in the continental US, and without time limits; each of these being assigned to specific ...
Clear-channel stations — radio stations whose nighttime skywave signals have a high level of protection from interference. The main article for this category is Clear-channel station . v
WRKO (680 AM) is a commercial news/talk radio station licensed to Boston, Massachusetts, serving Greater Boston and much of surrounding New England.Owned by iHeartMedia, WRKO is a Class B AM station that provides secondary coverage to portions of Massachusetts, Connecticut, Rhode Island, New Hampshire and Maine during the day, but is highly directional at night to protect a number of clear ...
The following radio stations broadcast on AM frequency 1000 kHz: [1] 1000 AM is a United States and Mexican [2] clear-channel frequency. [3] KNWN Seattle, WMVP Chicago and XEOY Mexico City [4] share Class A status on 1000 kHz.
WMEX was founded in 1934 by Bill and Al Pote, with studios in the Hotel Manger, and was originally on 1500 kilocycles, with 250 watts daytime, 100 watts nighttime. [5] It broadcast from a transmitter site on Powder Horn Hill in Chelsea, and later (1940–1981) from a site off West Squantum Road in Quincy, near the then-WNAC/WAAB (now WBIX) site in the Neponset River Valley.