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 one h ...

) 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 radi ...

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 ...

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 C ...

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, serving the eastern suburbs of the Greater Toronto Area. 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 198 ...

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 wel ...

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 informati ...

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 (commonly abbreviated as BC) is the westernmost Provinces and territories of Canada, province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include ...

. 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 performan ...

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 is an electronic device which produces radio waves with an antenna. The transmitter itself generates a radio frequency alternating current, which is applied to ...

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 Newcas ...

. 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 h ...

and on 95.9 CJKX-FM-HD3.

History

On October 5, 1946, CKDO first

signed on Signing may refer to: * Using sign language * Signature, placing one's name on a document * Signature (disambiguation) * Manual communication, signing as a form of communication using the hands in place of the voice * Digital signature A dig ...

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

to CKLB. The station moved to AM 1350 in 1956. The following year, Lakeland launched an FM sister station,

CKLB-FM CKLB is a Canadian radio station, broadcasting at 101.9 FM in Yellowknife, Northwest Territories. Owned by the Native Communications Society of the Northwest Territories, the station was licensed in 1985 (originally as CKNM-FM) and broadcasts ...

. 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). 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, quiet ...

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 in Hamilton, CFPL in

London London is the capital and List of urban areas in the United Kingdom, 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 dow ...

CKRU CKRU-FM (100.5 MHz) is a commercial radio station in Peterborough, Ontario, Canada. It broadcasts a hot adult contemporary format. CKRU-FM is owned by Corus Entertainment and is branded as ''100.5 Fresh Radio''. History The station signe ...

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 CKWS-FM is a Canadian radio station, broadcasting at 104.3 FM in Kingston, Ontario. The station airs a hot adult contemporary format branded on-air as ''104.3 Fresh Radio''. The station is owned by Corus Entertainment, which also owns CFMK-FM ...

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and CJOY in

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), 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 radio station in North America that has the highest protection from interference from other stations, particularly concerning night-time skywave propagation. The system exists to ensure the viability of cross-co ...

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

CBJ CBJ may refer to: * CBJ-FM, a French-language Canadian radio station * cbj (publisher), a German publisher * Brazilian Judo Confederation, or ''Confederação Brasileira de Judô'' * Central Bank of Jordan, the central bank of Jordan * '' Christi ...

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 com ...

, 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 ...

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, 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