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KZSF (1370 AM) is a radio station broadcasting a Regional Mexican format in the San Francisco Bay Area. Licensed to San Jose, California, United States. The station is currently owned by Carlos A. Duharte.[2]

CitySan Jose, California
Broadcast areaSan Francisco Bay Area
BrandingLa Kaliente
Frequency1370 kHz
First air date1947[1]
FormatRegional Mexican
Power5,000 watts
Facility ID68841
Transmitter coordinates37°21′28″N 121°52′17″W / 37.35778°N 121.87139°W / 37.35778; -121.87139
Former callsignsKEEN (1947[1]-1993)
KKSJ (1993-1998)
AffiliationsLa Kaliente
OwnerCarlos A. Duharte
WebcastListen Live


KZSF came on the air in 1947 as KEEN and had a country music format. The station was assigned the KKSJ call letters on October 11, 1993 (formerly Magic 61 KFRC 610) becoming Magic KKSJ. On January 20, 1998, the station changed its call sign to the current KZSF.[3]


  1. ^ a b History Cards for KZSF, Retrieved June 22, 2018.
  2. ^ "KZSF Facility Record". United States Federal Communications Commission, audio division. Retrieved 2010-07-18.
  3. ^ "KZSF Call Sign History". United States Federal Communications Commission, audio division.

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