KBS Cool FM: The Evolution of South Korea's Hot AC Radio
KBS Cool FM, also recognized as KBS 2FM, is a premier 24-hour radio station operated by the Korean Broadcasting System. Specializing in a Hot Adult Contemporary (Hot AC) format—a style of music targeting adults with a blend of current hits and nostalgic tracks—the station serves as a hub for music, comedy, and entertainment. While its sister station, KBS Happy FM, focuses on the latest K-pop hits, Cool FM distinguishes itself by playing a significant amount of K-pop from the 1990s, offering a melodic bridge between generations.
The station is well-known for its high-profile programming, featuring popular shows such as Gayo Plaza, Volume Up, and Kiss the Radio. Its influence is evident in its ratings; for instance, the program Volume Up has previously achieved the highest ratings in its timeslot across both AM and FM bandwidths in Seoul.
Key Facts
- Owner: Korean Broadcasting System (KBS).
- Primary Frequency: 89.1 MHz FM.
- Format: Hot Adult Contemporary, Comedy, and Entertainment.
- Launch Date: June 26, 1965 (as Tongyang Broadcasting Corporation).
- Main Transmitter: Mount Gwanaksan (10,000 watts).
- Language: Korean.
Historical Journey
The TBC Radio Era (1965–1980)
The station's origins date back to June 26, 1965, with the launch of the Tongyang Broadcasting Corporation (TBC), the predecessor of today's JTBC. On June 27, 1965, Radio Seoul Broadcasting began airing on 639 kHz under the call sign HLCD. By 1966, the station was renamed TBC Radio and expanded its reach by launching an FM repeater at 89.1 MHz, changing its call sign to HLKC/HLKC-SFM. TBC Radio marked a technical milestone in 1970 by introducing South Korea's first Stereo FM broadcast.
Transition to KBS 2FM (1980–2002)
A significant shift occurred on December 1, 1980, when TBC Radio was forced to merge into KBS via a special law enacted under the military authority of President Chun Doo-hwan. On December 25, 1980, the station relaunched as KBS 2FM, adopting a format centered on Trot and popular music. During this period, the 639 kHz AM repeater was discontinued to make way for KBS Radio 3.
The 1980s and 90s saw steady growth in accessibility. In December 1988, the station began partial 24-hour broadcasting, which became full 24-hour service by October 1, 1994. Technical capabilities also improved in May 1990, when transmission power was increased from an Effective Radiated Power (ERP) of 173.5 kW to 350 kW.
The Cool FM Era (2002–Present)
The modern identity of the station began on January 1, 2002, with the resumption of commercial advertisements. On October 10, 2003, the station was officially rebranded as KBS Cool FM. To increase listener engagement, the station opened its studios to the public in 2005 and launched visual radio (BORA) broadcasts via the internet in 2006.
In March 2010, KBS optimized its signal by moving the Cool FM transmitter from Mount Namsan to Mount Gwanaksan. By 2016, the station resumed national broadcasting for select programs through cross-broadcasts with local Radio 2 stations, starting with Park Myeong-su's Radio Show.
Technical Specifications and Accessibility
Cool FM is available terrestrially across several major cities and regions, including Seoul, Incheon, and various parts of Gyeonggi-do and Chungcheong-do. For listeners outside the primary coverage area, the station is accessible through local Happy FM stations during specific time windows: 5:00–9:00 AM, 11:00 AM–2:00 PM, and 6:00–8:00 PM KST.
| Transmitter Location | Callsign | Frequency | Power |
|---|---|---|---|
| Mt. Gwanaksan | HLKC-FM | 89.1 MHz | 10 kW |
| Seongnam | - | 97.7 MHz | 200 W |
| Baengnyeongdo | - | 90.9 MHz | 100 W |
Additionally, the station is available via DMB (Digital Multimedia Broadcasting) through U-KBS Music channels in various regions, including Seoul (CH 12B), Busan/Ulsan (CH 12B/9B), and Jeju (CH 13B/8B).
Frequently Asked Questions
What is the difference between KBS Cool FM and KBS Happy FM?
While both are music stations, KBS Cool FM focuses on a Hot AC format with a preference for 1990s K-pop, whereas KBS Happy FM focuses on the latest K-pop tracks.
How can I listen to Cool FM if I am outside the Seoul area?
Listeners can tune in via terrestrial FM in select cities, use the U-KBS DMB channels, or listen through local Happy FM stations during designated morning, afternoon, and evening time slots.
What is the history behind the station's ownership?
The station began as TBC Radio (Tongyang Broadcasting Corporation) in 1965 but was forced to merge into the Korean Broadcasting System (KBS) in 1980 due to a special law.
What are some of the most popular shows on KBS Cool FM?
Some of the most notable programs include Gayo Plaza, Volume Up, and Kiss the Radio.