KSOP-FM

KSOP-FM (104.3 FM, "Z104") is a radio station broadcasting a country music format. Licensed to Salt Lake City, Utah, United States, the station serves the Salt Lake City metropolitan area. The station is owned by KSOP, Inc.^[3] Its studios are located along Redwood Road, and the transmitter site is atop Farnsworth Peak.

Broadcast areaSalt Lake City metropolitan area

Frequency104.3 MHz (HD Radio)

BrandingZ104

FormatCountry

Quick facts Broadcast area, Frequency ...

KSOP-FM

Salt Lake City, Utah United States
Broadcast area	Salt Lake City metropolitan area
Frequency	104.3 MHz (HD Radio)
Branding	Z104
Programming
Format	Country
Ownership
Owner	KSOP, Inc. (KSOP)
Sister stations	KSOP
History
First air date	December 10, 1964 (1964-12-10)[1]
Call sign meaning	Salt Lake, Ogden, Provo
Technical information[2]
Licensing authority	FCC
Facility ID	35629
Class	C
ERP	25,000 watts
HAAT	1,140 meters (3,740 ft)
Transmitter coordinates	40°39′33.8″N 112°12′7.8″W
Links
Public license information	Public file LMS
Webcast	Listen live
Website	z104country.com

Close

KSOP-FM also has a sister station, KSOP, on AM 1370 kHz. The FM station went on the air December 10, 1964, and has claimed to be the first FM country music station in the United States.^[4] The two stations simulcast until May 2002, when KSOP AM broke away to launch a classic country format to complement the more contemporary playlist on KSOP-FM.^[5]

On August 1, 2011, at midnight, after stunting with a countdown of 10 popular non-country pop songs, KSOP-FM rebranded as "Z104".

On November 15, 2017, at approximately 12 pm (MST) the station switched on its HD Radio transmitter, allowing for clearer radio, album art in car, and other HD options. KSOP-FM's second HD Radio channel simulcasts KSOP AM; the subchannel will be discontinued in June 2025, concurrently with the closure of the AM station and the move of its classic country programming to Internet radio.^[6]