CBOF-FM (90.7

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 ...

) is a

non-commercial A non-commercial (also spelled noncommercial) activity is an activity that is not carried out in the interest of Profit (economics), profit. The opposite is Commerce, commercial, something that primarily serves profit interests and is focused on bu ...

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 ...

located in

Ottawa Ottawa is the capital city of Canada. It is located in the southern Ontario, southern portion of the province of Ontario, at the confluence of the Ottawa River and the Rideau River. Ottawa borders Gatineau, Gatineau, Quebec, and forms the cor ...

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. It airs a

French language French ( or ) is a Romance languages, Romance language of the Indo-European languages, Indo-European family. Like all other Romance languages, it descended from the Vulgar Latin of the Roman Empire. French evolved from Northern Old Gallo-R ...

news News is information about current events. This may be provided through many different Media (communication), media: word of mouth, printing, Mail, postal systems, broadcasting, Telecommunications, electronic communication, or through the te ...

talk Talk may refer to: Communication * Communication, the encoding and decoding of exchanged messages between people * Conversation, interactive communication between two or more people * Lecture, an oral presentation intended to inform or instruct ...

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 ...

, much of which comes from the

Ici Radio-Canada Première Ici Radio-Canada Première (formerly Première Chaîne) is a Canadian French-language radio network, the news and information service of the Canadian Broadcasting Corporation (known as Société Radio-Canada in French), the public broadcaster of ...

network. The studios and offices are located at the

CBC Ottawa Broadcast Centre The CBC Ottawa Production Centre is an office and studio complex the serves as the headquarters of the Canadian Broadcasting Corporation. It is located on Queen Street (Ottawa), Queen Street in the Downtown Ottawa, downtown core of Ottawa, Onta ...

on Queen Street (across from the

O-Train The O-Train is a light rail system in Ottawa, Ontario, Canada, operated by OC Transpo. The O-Train system consists of three lines, all of which are fully Grade separation, grade-separated. As of March 2025, one line is currently being extended an ...

Line 1 light rail station) in

Downtown Ottawa Downtown Ottawa is the central area of Ottawa, Ontario, Canada. It is sometimes referred to as the Central Business District and contains Ottawa's financial district. It is bordered by the Ottawa River to the north, the Rideau Canal to the east, ...

. Owned and operated by the

Canadian Broadcasting Corporation The Canadian Broadcasting Corporation (), branded as CBC/Radio-Canada, is the Canadian Public broadcasting, public broadcaster for both radio and television. It is a Crown corporation that serves as the national public broadcaster, with its E ...

(French: Société Radio-Canada), CBOF-FM has an

effective radiated power Effective radiated power (ERP), synonymous with equivalent radiated power, is an IEEE standardized definition of directional radio frequency (RF) power, such as that emitted by a radio transmitter. It is the total power in watts that would ha ...

(ERP) of 84,000

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 as a class C1 station, using an

omnidirectional antenna In radio communication, an omnidirectional antenna is a class of antenna (electronics), antenna which radiates equal radio power in all directions perpendicular to an Cartesian coordinate system, axis (azimuthal directions), with power varying wi ...

located off Chemin Dunlop in

Camp Fortune, Quebec Camp Fortune is a commercial alpine ski centre located in the municipality of Chelsea in the Gatineau Hills north of Gatineau, Quebec, approximately fifteen minutes from Downtown Ottawa, Ontario. Camp Fortune is composed of three mountainsides ...

Programming

The station's current local programs are ''Les matins d'ici'', heard weekday mornings from 5:30 a.m. to 9 a.m., and ''Sur le vif'' airing on weekday afternoons, 3 p.m. to 6 p.m. The early morning program from 5 a.m. to 5:30 a.m., ''Info matin'', originates from

CBF-FM CBF-FM is a French-language radio station licensed to Montreal, Quebec, Canada. Owned and operated by the government-owned Canadian Broadcasting Corporation, it transmits on 95.1 MHz from the Mount Royal candelabra tower with an effective radia ...

Montreal Montreal is the List of towns in Quebec, largest city in the Provinces and territories of Canada, province of Quebec, the List of the largest municipalities in Canada by population, second-largest in Canada, and the List of North American cit ...

and is also heard in

Quebec City Quebec City is the capital city of the Provinces and territories of Canada, Canadian province of Quebec. As of July 2021, the city had a population of 549,459, and the Census Metropolitan Area (including surrounding communities) had a populati ...

. CBOF-FM's Saturday morning local program is ''Les malins'', heard from 7:00 a.m. to 11 a.m.

History

The station

signed on A sign-on (or start-up in Commonwealth countries except Canada) is the beginning of operations for a radio broadcasting, radio or television station, generally at the start of each day. It is the opposite of a sign-off (or closedown in Commonw ...

in 1964 as CBOF. It was originally on the AM band at 1250

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 ...

, with 10,000 watts day and night. Before then, Radio-Canada relied on privately owned AM 970 CKCH in nearby

Hull, Quebec Hull is the central business district and oldest neighbourhood of the city of Gatineau, Quebec, Canada. It is located on the west bank of the Gatineau River and the north shore of the Ottawa River, directly opposite Ottawa. As part of Canada's ...

, as well as the 50,000-watt signal of

's AM 690 CBF, to serve Ottawa's francophones. On January 15, 1975 the

Canadian Radio-television and Telecommunications Commission The Canadian Radio-television and Telecommunications Commission (CRTC; ) is a public organization in Canada tasked with the mandate as a regulatory agency tribunal for various electronic communications, covering broadcasting and telecommunic ...

(CRTC) approved the CBC's application to increase CBOF's signal from 10,000 watts to 50,000 watts day and night at 1250 kHz. In the 1980s, the CBC made the decision to begin moving many of its English and French-language AM stations to the FM dial. The CRTC approved the CBC's application to convert CBOF from the AM band to the FM band, on November 9, 1989. CBOF moved to its current frequency on 90.7 MHz on January 7, 1991 as CBOF-FM. After a period of

simulcast Simulcast (a portmanteau of "simultaneous broadcast") is the broadcasting of programs or events across more than one resolution, bitrate or medium, or more than one service on the same medium, at exactly the same time (that is, simultaneously) ...

ing on both AM and FM, the AM transmitter was shut down. Its

sister station In broadcasting, sister stations or sister channels are radio or television stations operated by the same company, either by direct ownership or through a management agreement. Radio sister stations will often have different formats, and somet ...

on 102.5, on the Radio-Canada Musique network, which used the CBOF-FM

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 ...

before that date, is now known as

CBOX-FM CBOX-FM (102.5 MHz) is a non-commercial French-language radio station. It broadcasts the Société Radio-Canada's Ici Musique network in Ottawa, Ontario. CBOX's studios are located in the CBC Ottawa Broadcast Centre on Queen Street (across from ...

. CBOF-FM, like all Première network stations but unlike most FM stations, broadcasts in

mono Mono may refer to: Biology * Infectious mononucleosis, "the kissing disease" * Monocyte, a type of leukocyte (white blood cell) * Monodactylidae, members of which are referred to as monos Technology and computing * Mono (audio), single-c ...

. While still on the AM dial, CBOF experimented with

AM stereo AM stereo is a term given to a series of mutually incompatible techniques for radio broadcasting stereo audio in the AM band in a manner that is compatible with standard AM receivers. There are two main classes of systems: independent sideban ...

broadcasts between 1984 and 1987, testing all four AM stereo systems (

C-QUAM C-QUAM (Compatible QUadrature Amplitude Modulation) is the method of AM stereo broadcasting used in Canada, the United States and most other countries. It was invented in 1977 by Norman Parker, Francis Hilbert, and Yoshio Sakaie, and published in ...

, Kahn-Hazeltine,

Harris Harris may refer to: Places Canada * Harris, Ontario * Northland Pyrite Mine (also known as Harris Mine) * Harris, Saskatchewan * Rural Municipality of Harris No. 316, Saskatchewan Scotland * Harris, Outer Hebrides (sometimes called the Isle ...

and

Magnavox Magnavox (Latin for "great voice", often stylized as MAGNAVOX) is an American electronics brand. It was purchased by North American Philips in 1974, which was absorbed into Dutch electronics company Philips in 1987. The predecessor to Magnavox w ...

) proposed at the time.

Transmitters

* The two AM repeaters in Rolphton, Ontario and Maniwaki, Quebec were the last two remaining CBOF repeaters that operated on the AM band. The AM transmitters of CBOF-1 990 and CBOF-4 1400 were converted to the FM band. On March 17, 2022, the CBC submitted an application to move CBOF-1 990 to 94.3 MHz. The CRTC approved the CBC's applications to move both CBOF-1 and CBOM Maniwaki to the FM band on June 1, 2022. * On September 20, 2022, the CBC submitted an application to convert CBOF-4 1400 to 98.5 MHz which was approved on November 28, 2022. On January 27, 2025, the CRTC approved the CBC's application to change the following technichal information for CBOF-FM-9 at 88.7 MHz in L’Isle-aux-Allumettes (Chapeau, Quebec) by changing the class of the transmitter from A to C1, increasing the maximum effective radiated power (ERP) from 2,300 to 75,148 watts, increasing the average ERP from 2,300 to 30,124 watts, replacing the existing circular non-directional antenna with a new elliptical directional antenna and increasing the effective height of the antenna above average terrain (EHAAT) from 91.5 to 93.9 metres, and to relocate the transmitter to another site in Pembroke, Ontario and will remain on 88.7 MHz.

Former repeaters

Former CBOF repeaters that have been silent since the 1980s and 1990s: *

Petawawa Petawawa ( ) is a town located in the eastern portion of Southern Ontario, Canada. Situated in the Ottawa Valley, with a population of 18,160 (2021 Census), Petawawa is the most populous municipality in Renfrew County. History The earliest se ...

- CBOF-2 1240 AM * Deep River - CBOF-3 730 AM * Mattawa - CBOF-5 1090 AM - ''This was a former repeater of CBOF Ottawa The Ottawa Journal from Ottawa, · Page 2. September 23, 1977
/ref> which still remains on the air (in 2024 at 1090 kHz) as CBON-12, a repeater of

CBON-FM CBON-FM is a Canadian radio station. It broadcasts the Société Radio-Canada's Ici Radio-Canada Première network at 98.1 FM in Sudbury, Ontario. The station also serves much of Northern Ontario through a network of relay transmitters. Hist ...

Sudbury Sudbury may refer to: Places Australia * Sudbury Reef, Queensland Canada * Greater Sudbury, Ontario ** Sudbury (federal electoral district) ** Sudbury (provincial electoral district) ** Sudbury Airport ** Sudbury Basin, a meteorite impact cra ...

'' *

Renfrew Renfrew (; ; ) is a town west of Glasgow in the west central Lowlands of Scotland. It is the historic county town of Renfrewshire. Called the "Cradle of the Royal Stewarts" for its early link with Scotland's former royal house, Renfrew gaine ...

- CBOF-FM-8 98.7 - This was a former FM repeater in Renfrew, Ontario that was deleted when CBOF-FM signed on in Ottawa in the early 1990s. The 98.7 FM frequency is now currently occupied by CJHR-FM in Renfrew, while the two former AM frequencies that were used by CBOF as repeaters in Petawawa and Deep River were never reactivated for any other future broadcasting.

References

External links

Ici Radio-Canada Première

CBOF-FM
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 ...

* * (OLD frequency) {{DEFAULTSORT:Cbof-Fm Bof Bof Bof Radio stations established in 1964 1964 establishments in Ontario