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As KNX and competitor station [[KFI]] are primary entry points for the [[Southern California]] [[Emergency Alert System]], they are responsible for activation of the EAS when [[Severe weather terminology (United States)|hazardous weather alerts]], [[disaster area]] declarations, and [[AMBER Alert|child abduction alerts]] are issued.<ref>[http://www.caloes.ca.gov/WarningCenterSite/Documents/04-LACOO%20Comp-Public.pdf FCC Local Area Plan for the Emergency Alert System] ([[Microsoft Word]] Document) - [[Los Angeles County, California|Los Angeles County]]</ref>
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The station's antenna array features a 494-foot main antenna.
The original main antenna (circa 1936) was destroyed by vandals on September 14, 1965. An unused 365-foot tower was brought in from KFAC (now [[KWKW]]) and was used while the new main antenna was constructed. This antenna was formerly in what is now a residential area to the south of the main antenna.
Non-directional Class A stations are, with very few exceptions, required to have emergency
The 365-foot tower now serves as KNX's emergency antenna.
It was later relocated when much of the site was dedicated as a park in Torrance; it is now north of the main antenna, within the park.
Only one antenna is active at a time. An experiment in the late 1960s using both
=== Electrical properties ===
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