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KDZZ ZROCK107.7-103.9 logo.png
CitySt. Charles, Minnesota
Broadcast areaRochester, Minnesota
BrandingZ-Rock 107.7
SloganThe Rock of Rochester
Frequency107.7 MHz
First air dateApril 18, 1998 (1998-04-18) (as KLCX)
FormatMainstream rock
ERP1,950 watts
HAAT174 m (571 ft)
Facility ID56252
Transmitter coordinates44°02′24″N 92°13′05″W / 44.040°N 92.218°W / 44.040; -92.218Coordinates: 44°02′24″N 92°13′05″W / 44.040°N 92.218°W / 44.040; -92.218
Former callsignsKANP (1996–1997)
KLCX (1997–2008)
KDZZ (2008–2017)
OwnerTownsquare Media
(Townsquare Media Rochester License, LLC)
WebcastListen Live

KDCZ (107.7 FM, "Z Rock 107.7") is a radio station broadcasting a mainstream rock format. KDCZ is licensed to St. Charles, Minnesota, and serves the Rochester, Minnesota metropolitan area. The station is owned by Townsquare Media.


Logo as KLCX

KDCZ signed on April 18, 1998[1] as KLCX. The KLCX call letters were originally assigned to a station in the Palm Springs, California market in the early 1990s but were surrendered when its new owners changed the format to smooth jazz and the call letters to KJJZ. KLCX aired a classic hits format on 107.7, which moved to 103.9 FM on April 1, 2008, as 107.7 FM flipped to active rock as "Z-Rock 107.7". On March 23, 2010, KDZZ began simulcasting on KDCZ 103.9 FM.

On August 30, 2013, a deal was announced in which Townsquare would acquire 53 Cumulus Media stations, including KDZZ/KDCZ, for $238 million. The deal was part of Cumulus' acquisition of Dial Global; Townsquare and Dial Global were both controlled by Oaktree Capital Management.[2][3] The transaction was consummated effective November 14, 2013.

On April 13, 2017 at 7:30 a.m., KDCZ split from its simulcast with KDZZ and changed its format to adult hits, branded as "103.9 The Doc".[4] On June 2, 2017, KDZZ took on the KDCZ call sign, after 103.9 changed its call letters to KDOC-FM on May 16.


  1. ^ Broadcasting & Cable Yearbook 2009 (PDF). 2009. p. D-304. Retrieved October 6, 2018.
  2. ^ "Official: Cumulus Buys Dial Global, Spins Some Stations To Townsquare; Peak Stations Sold To Townsquare, Fresno Spun To Cumulus". All Access. August 30, 2013. Retrieved August 30, 2013.
  3. ^ "Cumulus Makes Dial Global And Townsquare Deals Official". RadioInsight. August 30, 2013. Retrieved August 30, 2013.
  4. ^ Variety Hits 103.9 The Doc is in Rochester Radioinsight - April 13, 2017

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