CKDO (1580

kHz The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose expression in terms of SI base units is s−1, meaning that on ...

) is a

commercial Commercial may refer to: * a dose of advertising conveyed through media (such as - for example - radio or television) ** Radio advertisement ** Television advertisement * (adjective for:) commerce, a system of voluntary exchange of products and s ...

radio station Radio broadcasting is transmission of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience. In terrestrial radio broadcasting the radio waves are broadcast by a land-based radio ...

Oshawa Oshawa ( , also ; 2021 population 175,383; CMA 415,311) is a city in Ontario, Canada, on the Lake Ontario shoreline. It lies in Southern Ontario, approximately east of Downtown Toronto. It is commonly viewed as the eastern anchor of the G ...

Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central Ca ...

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

, serving the eastern suburbs of the

Greater Toronto Area The Greater Toronto Area, commonly referred to as the GTA, includes the City of Toronto and the regional municipalities of Durham, Halton, Peel, and York. In total, the region contains 25 urban, suburban, and rural municipalities. The Greater T ...

. The station airs a

classic hits Classic hits is a radio format which generally includes songs from the top 40 music charts from the late 1960s to the early 2000s, with music from the 1980s serving as the core of the format. Music that was popularized by MTV in the early 1980s ...

oldies Oldies is a term for musical genres such as pop music, rock and roll, doo-wop, surf music (broadly characterized as classic rock and pop rock) from the second half of the 20th century, specifically from around the mid-1950s to the 1980s, as we ...

format Format may refer to: Printing and visual media * Text formatting, the typesetting of text elements * Paper formats, or paper size standards * Newspaper format, the size of the paper page Computing * File format, particular way that informatio ...

and is owned by

Durham Radio Durham Radio, Inc. is an Oshawa, Ontario-based radio broadcaster. The company owns six radio stations and their associated repeaters, which are primarily located in the Golden Horseshoe region of Southern Ontario. In 2021, Durham Radio received ...

Inc. CKDO is one of only two radio stations in Canada that broadcast on 1580

. The other is

CBPK Weatheradio Canada (french: Radiométéo Canada) is a Canadian weather radio network owned and operated by Environment and Climate Change Canada's Meteorological Service of Canada division that is an official partner of the U.S. National Weather ...

, a 50-watt weather information station in Revelstoke,

British Columbia British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...

. CKDO is powered at 10,000

watt The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named after James Wa ...

s, using a

directional antenna A directional antenna or beam antenna is an antenna which radiates or receives greater power in specific directions allowing increased performance and reduced interference from unwanted sources. Directional antennas provide increased performance ...

with a two-

tower array A tower array is an arrangement of multiple radio towers which are mast radiators in a phased array. They were originally developed as ground-based tracking radars. Tower arrays can consist of free-standing or guyed towers or a mix of them. Tower a ...

. It is a clear channel, Class A station. The

transmitter In electronics and telecommunications, a radio transmitter or just transmitter is an electronic device which produces radio waves with an antenna (radio), antenna. The transmitter itself generates a radio frequency alternating current, which i ...

is on Courtice Road in

Clarington Clarington (2021 population 101,427) is a lower-tier municipality in the Regional Municipality of Durham in Ontario, Canada. It was incorporated in 1973 as the town of Newcastle with the merging of the town of Bowmanville, the Village of Newcastl ...

. Programming is also heard on FM rebroadcaster CKDO-FM-1 at 107.7

MHz The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose expression in terms of SI base units is s−1, meaning that one he ...

and on 95.9

CJKX-FM CJKX-FM is a Canadian radio station. Although its official city of licence is Ajax, Ontario, the station operates from studios in Oshawa, Ontario with co-owned stations CKDO and CKGE-FM. Airing at 95.9 FM, the station broadcasts a country format ...

-HD3.

History

On October 5,

1946 Events January * January 6 - The 1946 North Vietnamese parliamentary election, first general election ever in Vietnam is held. * January 7 – The Allies recognize the Austrian republic with its 1937 borders, and divide the country into f ...

, CKDO first

signed on Signing may refer to: * Using sign language * Signature A signature (; from la, signare, "to sign") is a handwritten (and often stylized) depiction of someone's name, nickname, or even a simple "X" or other mark that a person writes on do ...

. It was launched by T. W. Elliott, an executive with the Canadian division of

General Motors The General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. It is the largest automaker in the United States and ...

. Its original frequency was 1240

kilocycle The cycle per second is a once-common English name for the unit of frequency now known as the hertz (Hz). The plural form was typically used, often written cycles per second, cycles/second, c.p.s., c/s, or, ambiguously, just cycles (Cy./Cyc.). The ...

s. In 1950, Elliott sold the station to Lakeland Broadcasting, who changed the

call sign In broadcasting and radio communications, a call sign (also known as a call name or call letters—and historically as a call signal—or abbreviated as a call) is a unique identifier for a transmitter station. A call sign can be formally assigne ...

to CKLB. The station moved to AM 1350 in 1956. The following year, Lakeland launched an FM sister station, CKLB-FM. In 1979, the stations were acquired by Grant Broadcasting, and CKLB adopted the new call letters CKAR. (The former CKAR call sign is now used at a radio station in

Huntsville Huntsville is a city in Madison County, Limestone County, and Morgan County, Alabama, United States. It is the county seat of Madison County. Located in the Appalachian region of northern Alabama, Huntsville is the most populous city in th ...

). In 1990, Grant Broadcasting sold the stations to Power Broadcasting. In 1992, Power readopted the station's original CKDO call sign and an

format. In 1996, the station moved to an

adult contemporary Adult contemporary music (AC) is a form of radio-played popular music, ranging from 1960s vocal and 1970s soft rock music to predominantly ballad-heavy music of the present day, with varying degrees of easy listening, pop, soul, R&B, quie ...

format, sometimes simulcasting the programming of its FM sister station and other times airing its own distinct programming schedule. In 2000,

Corus Entertainment Corus Entertainment Inc. is a Canadian mass media company. Formed in 1999 as a spin-off from Shaw Communications, it has prominent holdings in the radio, publishing, and television industries. It is headquartered at Corus Quay in Toronto, Onta ...

acquired the stations. In February 2001, Corus tried adding CKDO to its short-lived

talk radio Talk radio is a radio format containing discussion about topical issues and consisting entirely or almost entirely of original spoken word content rather than outside music. Most shows are regularly hosted by a single individual, and often featur ...

network (also consisting of

CHML CHML is a radio station, broadcasting at 900 AM in Hamilton, Ontario, Canada. CHML's transmitter power is 50,000 watts using an eight-tower directional antenna array with a signal oriented largely west-northwest to east-southeast, covering the ...

Hamilton Hamilton may refer to: People * Hamilton (name), a common British surname and occasional given name, usually of Scottish origin, including a list of persons with the surname ** The Duke of Hamilton, the premier peer of Scotland ** Lord Hamilt ...

, CFPL in

London London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary down to the North Sea, and has been a majo ...

CKRU CKRU-FM (100.5 Hertz, MHz) is a commercial radio, commercial radio station in Peterborough, Ontario, Peterborough, Ontario, Canada. It broadcasts a hot adult contemporary radio format, format. CKRU-FM is owned by Corus Entertainment and is brande ...

Peterborough Peterborough () is a cathedral city in Cambridgeshire, east of England. It is the largest part of the City of Peterborough unitary authority district (which covers a larger area than Peterborough itself). It was part of Northamptonshire until ...

, CFFX in Kingston and

CJOY CJOY is a Canadian radio station, broadcasting at 1460 AM in Guelph, Ontario. The station currently broadcasts an oldies/classic hits format and is branded on-air as ''1460 CJOY''. CJOY's sister station is CIMJ-FM. Both stations are owned by Cor ...

Guelph Guelph ( ; 2021 Canadian Census population 143,740) is a city in Southwestern Ontario, Canada. Known as "The Royal City", Guelph is roughly east of Kitchener and west of Downtown Toronto, at the intersection of Highway 6, Highway 7 and Wel ...

), but the station returned to the

format by the summer of that year. In 2003, CKDO and CKGE were acquired by their current owner, Durham Radio Inc. Durham established an FM rebroadcaster in 2005. The station had originally been approved by the CRTC in 2004, conditional on choosing a frequency other than 107.7, for which the station had originally applied. On August 13, 2006, CKDO moved from 1350 to 1580 kHz, taking over a Class A,

clear-channel A clear-channel station is an AM broadcasting, AM radio station in North America that has the highest protection from Interference (communication), interference from other stations, particularly concerning night-time skywave propagation. The syste ...

frequency and inheriting its protections against interference.Broadcasting Decision CRTC 2005-542
/ref> The 1580 frequency had originally been the home of CBJ in

Chicoutimi, Quebec Chicoutimi () is the most populous borough (arrondissement) of the city of Saguenay in Quebec, Canada. It is situated at the confluence of the Saguenay and Chicoutimi rivers. During the 20th century, it became the main administrative and comm ...

, before that

Ici Radio-Canada ICI or Ici may refer to: Companies and organisations * ICI Homes, builder, Florida. US * Former UK Imperial Chemical Industries ** ICI Australia, later Orica * Independent Curators International, New York City, US * Indian Concrete Institute * I ...

station migrated to the FM dial. CKDO operates at the minimum power required to broadcast on a clear-channel frequency, 10,000 watts. The CKDO call sign was previously used by an unrelated station in

Baie-Comeau, Quebec Baie-Comeau (; 2021 city population 20,687; CA population 26,643) is a city located approximately north-east of Quebec City in the Côte-Nord region of the province of Quebec, Canada. It is located on the shores of the Saint Lawrence River nea ...

, which operated at 92.5 FM from 1988 to 1991.

References

External links

107.7 FM & 1580 AM CKDO
*
Radio-Locator information on CKDO
* Kdo Oshawa Kdo Radio stations established in 1946 1946 establishments in Ontario Former Corus Entertainment subsidiaries Clear-channel radio stations {{Ontario-radio-station-stub