K277BS (103.3 FM; "Z103") is a translator rebroadcasting the classic rock format of the HD3 subcarrier of Leighton Broadcasting's KZPK. Licensed to St. Cloud, Minnesota, it serves the St. Cloud area. The station is currently owned by Leighton Broadcasting.

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Quick Facts Broadcast area, Frequency ...

K277BS

St. Cloud, Minnesota
Broadcast area	St. Cloud
Frequency	103.3 MHz
Branding	Real Rock Z103
Programming
Language(s)	English
Format	Classic rock
Ownership
Owner	Leighton Broadcasting (Leighton Enterprises, Inc.)
Sister stations	KNSI, KZPK, KCLD-FM, KCML
History
First air date	01/18/2012
Call sign meaning	(serially assigned)
Technical information
Facility ID	149174
Class	D
ERP	250 Watts
HAAT	134 meters
Transmitter coordinates	45-32-21.0 N 94-10-05.0 W
Repeater(s)	KZPK-HD3[1]
Links
Webcast	Listen Live!
Website	www.1033zrock.com

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K277BS signed on-air in 2012, the station was an FM translator for news/talk KNSI.

In 2018, it was announced that K277BS would flip to classic rock as "Z-Rock"; the programming on K277BS would originate from KZPK-HD3.^[2] On March 5, 2018 K277BS flipped to Classic Rock as "Z-Rock" relaying KZPK-HD3. The first song on "Z-Rock" was Bohemian Rhapsody by Queen.^[3] KNSI signed on a new FM translator (K257GK) at 99.3 MHz, which is KNSI's current FM translator.

In 2021, KZPK HD3/K277BS quietly rebranded as "Real Rock Z103" with no change in format.

The station competes with Townsquare Media's classic rock KLZZ, and Tri-County Broadcasting's active rock WHMH-FM.