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For the airport in Roanoke Rapids, North Carolina, assigned the ICAO code KRZZ, see Halifax County Airport.
City San Francisco, California
Broadcast area San Francisco/Oakland/San Jose, California
Branding 93.3 La Raza
Slogan Yo Soy Raza
Frequency 93.3 MHz
First air date January 1959 (as KYA-FM)
Format Regional Mexican
ERP 6,000 watts
HAAT 415 meters
Class B
Facility ID 1092
Former callsigns KYA-FM (1959-1980, 1982-1994)
KLHT (1980-1982)
KYCY (1994-1997)
KYCY-FM (1997-2002)
KKWV (2002-2003)
KBAY (2003-2004)
KBAA (9/2004-11/2004)
Owner Spanish Broadcasting System

KRZZ is a commercial radio station located in San Francisco, California, broadcasting to the San Francisco Bay Area on 93.3 FM. KRZZ airs a regional Mexican music format branded as "La Raza". The station's studios are located in San Jose just north of downtown, and the transmitter is located in the San Bruno Mountains.


KRZZ has adopted many programming formats since sign on in 1959 as KYA-FM. The station carried a Top 40 format for many years, either in conjunction with, or separate from KYA. In December 1979, both stations flipped to an easy album rock format titled "The New Easy Rock 93 FM". Within months, the FM station became KLHT (K-Lite), while KYA flipped to an oldies format. Two years later, the FM would regain its original call letters while flipping to an oldies format that lasted a decade. On March 27, 1994, at 5:30 AM, after playing "Memories" by Elvis Presley and The Star-Spangled Banner as performed by Roseanne Barr, the station flipped to high-energy country music as "Young Country 93.3" with the new call letters KYCY; the first song as Young Country was "Young Country" by Hank Williams, Jr..[1][2] The station would add the -FM suffix in 1997 when the station began simulcasting on 1550 AM, and would later rebrand as "Y93" on February 22, 1999.[3][4] On December 18, 2001, KYCY began stunting with Christmas music for a week, followed by simulcasts of other sister Infinity Broadcasting stations in San Francisco, and then a 3-day loop of the song "It's a Small World".[5] On December 31, 2001, the station flipped to a hybrid Rhythmic AC/world music format as KKWV, "93.3 The Wave."[6] On September 2, 2003, at 6 AM, the station joined in a simulcast with KBAY as "93.3 and 94.5 K-Bay".[7] In 2005, the station was sold from Infinity Broadcasting (now CBS Radio) to the current Spanish Broadcasting System and flipped to its current format.


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Coordinates: 37°41′13″N 122°26′06″W / 37.687°N 122.435°W / 37.687; -122.435