CKDO (1580

kHz The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), often described as being equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose formal expression in terms of SI base uni ...

) is a

commercial Commercial may refer to: * (adjective for) commerce, a system of voluntary exchange of products and services ** (adjective for) trade, the trading of something of economic value such as goods, services, information or money * a dose of advertising ...

radio station Radio broadcasting is the broadcasting 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 rad ...

Oshawa Oshawa 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 Greater Toronto Area and of the Golden Horseshoe. It ...

Ontario Ontario is the southernmost Provinces and territories of Canada, province of Canada. Located in Central Canada, Ontario is the Population of Canada by province and territory, country's most populous province. As of the 2021 Canadian census, it ...

, Canada, serving the eastern suburbs of the

Greater Toronto Area The Greater Toronto Area, commonly referred to as the GTA, includes the Toronto, City of Toronto and the regional municipality, regional municipalities of Regional Municipality of Durham, Durham, Regional Municipality of Halton, Halton, Regional ...

. The station airs a classic hits–

oldies Oldies is a term for musical genres such as pop music, rock and roll, doo-wop, surf music from the second half of the 20th century, specifically from around the mid-1950s to the 1980s, as well as for a radio format playing this music. Since 2 ...

format and is owned by Durham Radio Inc. CKDO is one of only two radio stations in Canada that broadcast on 1580

. The other is CBPK, a 50-watt weather information station in Revelstoke,

British Columbia British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that ...

. CKDO is powered at 10,000

watt The watt (symbol: W) is the unit of Power (physics), 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 quantification (science), quantify the rate of Work ...

s, using a

directional antenna A directional antenna or beam antenna is an antenna that radiates or receives greater radio wave power in specific directions. Directional antennas can radiate radio waves in beams, when greater concentration of radiation in a certain directio ...

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 ...

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

transmitter In electronics and telecommunications, a radio transmitter or just transmitter (often abbreviated as XMTR or TX in technical documents) is an electronic device which produces radio waves with an antenna (radio), antenna with the purpose of sig ...

is on Courtice Road in

Clarington Clarington (Canada 2021 Census, 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 ...

. 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), often described as being equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose formal expression in terms of SI base u ...

and on 95.9 CJKX-FM-HD3.

History

On October 5, , CKDO first signed on. It was launched by T. W. Elliott, an executive with the Canadian division of

General Motors General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. The company is most known for owning and manufacturing f ...

. 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). Cycles per second may be denoted by c.p.s., c/s, or, ambiguously, just "cycles" (Cyc., Cy., C, or c). The term comes from repetitive ph ...

In 1950, Elliott sold the station to Lakeland Broadcasting, which 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 as ...

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 sign CKAR. (The former CKAR call sign is now used at a radio station in Huntsville). 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 music 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 1980s to the present day, with varying degrees of easy listening, pop, sou ...

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. (often simply known as Corus) is a Canadian mass media and television production company. The company was founded in 1987 as Shaw Radio Ltd. as a subsidiary of Shaw Communications and was spun-off from Shaw in 1999. It h ...

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. They may feature monologues, dialogues between the hosts, Interview (jo ...

network (also consisting of CHML in

Hamilton Hamilton may refer to: * Alexander Hamilton (1755/1757–1804), first U.S. Secretary of the Treasury and one of the Founding Fathers of the United States * ''Hamilton'' (musical), a 2015 Broadway musical by Lin-Manuel Miranda ** ''Hamilton'' (al ...

, CFPL in

London London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...

, CKRU in

Peterborough Peterborough ( ) is a City status in the United Kingdom, cathedral city in the City of Peterborough district in the Ceremonial counties of England, ceremonial county of Cambridgeshire, England. The city is north of London, on the River Nene. A ...

, CFFX in Kingston and CJOY in

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

), 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 a North American AM broadcasting, AM radio station that has the highest level of protection from Interference (communication), interference from other stations, particularly from nighttime skywave signals. This classifi ...

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, before that

Ici Radio-Canada #REDIRECT ICI {{redirect category shell, {{R from other capitalisation{{R from ambiguous page ...

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 () is a city in the Côte-Nord region of the province of Quebec, Canada. It is located on the shores of the St. Lawrence River, and is the seat of Manicouagan Regional County Municipality. It is near the mouth of the Manicouagan Rive ...

, which operated at 92.5 FM from 1988 to 1991.

References

External links

*
CKDO
at The History of Canadian Broadcasting by the

Canadian Communications Foundation The Canadian Communications Foundation (CCF) was a Canadian nonprofit organization which documented the history of broadcasting in Canada, particularly radio and television networks, programs and broadcasters. The organization was established in ...

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