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CityLos Angeles, California
Broadcast areaSouthern California
Frequency1070 kHz {HD Radio}
BrandingKNX 1070 Newsradio
SloganAll News, All the Time.
Depend on Us.
AffiliationsCBS Radio Network
Bloomberg Radio
The Weather Channel
(Entercom License, LLC)
First air date
September 10, 1920 (1920-09-10) (as 6ADZ)
Former call signs
KGC (1921-1922)
Call sign meaning
Randomly assigned. A backronym explanation suggested it came from the Spring Street Arcade ANneX.[1]
Technical information
Facility ID9616
ClassA (Clear channel)
Power50,000 watts
Transmitter coordinates
33°51′35″N 118°20′59″W / 33.85972°N 118.34972°W / 33.85972; -118.34972Coordinates: 33°51′35″N 118°20′59″W / 33.85972°N 118.34972°W / 33.85972; -118.34972
(main antenna)
33°51′38″N 118°20′57″W / 33.86056°N 118.34917°W / 33.86056; -118.34917 (KNX (auxiliary))
(auxiliary antenna)
Repeater(s)101.1 KRTH-HD2
WebcastListen Live

KNX (1070 kHz) is a commercial AM radio station in Los Angeles, California. It airs an all-news radio format and is owned by Entercom. KNX is one of the oldest stations in the United States, having received its first broadcasting license, as KGC, in December 1921, in addition to tracing its history to the September 1920 operations of an earlier amateur station. The studios and offices, shared with sister stations KAMP-FM, KCBS-FM, KROQ-FM, KRTH and KTWV, are located on Los Angeles' Miracle Mile.

KNX holds a Class A license as one of the original clear-channel stations allocated under the 1928 General Order 40 band plan. Its full-time 50,000 watt non-directional signal is heard around Southern California. With a good radio, it can be picked up at night throughout much of the Western United States and parts of Mexico and Canada. The station is even received by DXers in Hawaii and across the Pacific Ocean. The transmitter is in Columbia Park in Torrance at the northeast of Hawthorne Boulevard (California State Route 107) and 190th Street.[2]

KNX is also authorized to broadcast a digital HD Radio signal, and is carried on the FM band by KRTH-FM-HD2's digital subchannel.[3]

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