KIRN is a commercial radio station

Radio station

Radio broadcasting is a one-way wireless transmission over radio waves intended to reach a wide audience. Stations can be linked in radio networks to broadcast a common radio format, either in broadcast syndication or simulcast or both...

 licensed to Simi Valley, California

Simi Valley, California

-2010:The 2010 United States Census reported that Simi Valley had a population of 124,237. The population density was 2,940.8 people per square mile...

, broadcasting to the Greater Los Angeles area

Greater Los Angeles Area

The Greater Los Angeles Area, or the Southland, is a term used for the Combined Statistical Area sprawled over five counties in the southern part of California, namely Los Angeles County, Orange County, San Bernardino County, Riverside County and Ventura County...

 on 670 AM

Amplitude modulation

Amplitude modulation is a technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. AM works by varying the strength of the transmitted signal in relation to the information being sent...

. KIRN airs ethnic Iranian programming.

KIRN's studios are located at the Fallbrook Mall in West Hills.

History

AM670 came on the air as KWNK in 1984, owned by Valley Radio LLC. The license was as a result of the FCC changing the Clear Channel Rules in 1982, which permitted the establishment of lower power radio stations on the clear channel frequencies. KWNK at 670 AM was allocated this frequency after protracted hearings by the FCC. Valley Radio's Consulting Engineer was Cecil Lynch who was one of the most respected engineers in the United States. KWNK served the Simi Valley and Conejo Valleys of Ventura County with 1KW of power 24 hours. Eventually the FCC permitted Valley Radio to increase power to 5KW Daytime and 3KW Nighttime.

KWNK started as a Top 40 station as 'Top Hits 67 K.Wink', with music from Prince, Duran Duran

Duran Duran

Duran Duran are an English band, formed in Birmingham in 1978. They were one of the most successful bands of the 1980s and a leading band in the MTV-driven "Second British Invasion" of the United States...

, etc... A couple of notable program directors during that period were Jim Conlee (former PD of TenQ/KTNQ, Los Angeles), and Steve Smith.
During the summer of 1986, KWNK slowly became more of a AC station, playing music from the likes of Amy Grant, due to direct competition from Top 40 KIIS AM.

Eventually, some of the talk shows that were on Sunday nights, moved full time.

Then became a sports talk station in the mid-1990s, first carrying One-on-One Sports (now Sporting News Radio

Sporting News Radio

Yahoo! Sports Radio, formerly Sporting News Radio is a United States sports radio network that broadcasts sports news, talk, scores, and highlights 24 hours a day, 7 days a week. On August 1, 2011, it was announced the network would change its name to Yahoo! Sports Radio, effective...

), then simulcasting the signal of "XTRA Sports 690" of the Tijuana-San Diego

San Diego, California

San Diego is the eighth-largest city in the United States and second-largest city in California. The city is located on the coast of the Pacific Ocean in Southern California, immediately adjacent to the Mexican border. The birthplace of California, San Diego is known for its mild year-round...

area. In 2001, AM690 ended the simulcast and KWNK then aired brokered-time programs for a brief period before it became "Radio Iran."

Notable air personalities:

Hurricane
Joe Light
Gary Butterworth
Kidd Kelly (now Maverick on KFYV/Ventura)
Anthony Edwards (not the actor)
Dave Skylar (Dave Montoya)
Phyllis West (who died in 2008)
Al Lohman (of Lohman & Barkely fame)
Dr. Laura