CHAI-FM is a

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

Canadian Canadians () are people identified with the country of Canada. This connection may be residential, legal, historical or cultural. For most Canadians, many (or all) of these connections exist and are collectively the source of their being ''C ...

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

Châteauguay Châteauguay ( , , ) is an off-island suburbs, off-island suburb of Montreal, in southwestern Quebec, located on both the Châteauguay River and Lake Saint-Louis, Lac St-Louis, which is a section of the St. Lawrence River. The population of the ...

Quebec Quebec is Canada's List of Canadian provinces and territories by area, largest province by area. Located in Central Canada, the province shares borders with the provinces of Ontario to the west, Newfoundland and Labrador to the northeast, ...

, near

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 ...

. It broadcasts on 101.9

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 ...

with 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 ...

of 100

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 ( class A1) 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 ...

. The station also operates a co-channel repeater, CHAI-FM-1 in

Candiac Candiac () is a suburb of Montreal, in the Canadian province of Quebec; it is located on the South Shore of the Saint Lawrence River opposite Montreal near La Prairie. The population as of the Canada 2021 Census was 22,997. History Candiac ...

, also on 101.9 FM. The use of two transmitters is in order to protect several co-channel and adjacent-channel stations in nearby areas, the closest being CIBL-FM and

CINQ-FM CINQ-FM is a multilingual Canada, Canadian radio station located in Montreal, Quebec. It broadcasts on 102.3 Megahertz, MHz using a directional antenna with an average effective radiated power of 1,285 watts and a peak effective radiated power o ...

, plus co-channel

CJSS-FM CJSS-FM (101.9 MHz) is a commercial radio station in Cornwall, Ontario. The station broadcasts a classic hits format branded as '' Boom 101.9''. CJSS is owned by Corus Entertainment, which acquired the station, along with CFLG-FM, in 2001. CJSS ...

Cornwall, Ontario Cornwall is a city in Eastern Ontario, Canada, situated where the provinces of Central Canada, Ontario and Quebec and the U.S. state of New York (state), New York converge. It is Ontario's easternmost city. Although it is the seat of the United ...

.Fagstein: "Châteauguay’s CHAI-FM seeks to replace two transmitters with one", December 3, 2015.
/ref> (CBMG-FM in

Cowansville Cowansville is a town in south-central Quebec, Canada, located on Lac Davignon north of the U.S. border. It is the seat of Brome-Missisquoi, a regional county municipality. The population as of the Canada 2021 Census was 15,234. In recent year ...

, a local repeater of

CBME-FM CBME-FM is an English-language radio station located in Montreal, Quebec, Canada. Owned and operated by the government-owned Canadian Broadcasting Corporation, it broadcasts on 88.5 MHz using a directional antenna with an average effective radiat ...

that also broadcasts at 101.9, did not sign on until 2002.) The station operates under a

community radio Community radio is a radio service offering a third model of radio broadcasting in addition to commercial broadcasting, commercial and public broadcasting. Community broadcasting, Community stations serve geographic communities and communities o ...

licence and has a variety

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 ...

. It opened in 1980.Broadcasting Decision CRTC 2006-466
/ref> In December 2015, CHAI-FM announced plans to replace its two-transmitter system with a single transmitter, from a location southeast of CHAI-FM's main Châteauguay transmitter. The new transmitter would broadcast at 238 watts, with a directional antenna set on an east–west pattern, also to protect nearby stations as discussed above; this was due to synchronization and interference problems between the Châteauguay and Candiac transmitters, which is evident where the two transmitters overlap in an area between Lachine and

Delson Delson is an off-island suburb ( South shore) of Montreal, Quebec, Canada. It is situated 8 mi/13 km SSE of Montreal within the regional county municipality of Roussillon in the administrative region of Montérégie. The population as ...

. The station is a member of the

Association des radiodiffuseurs communautaires du Québec The Alliance des radios communautaires du Québec (ARCQ) is a Canadian organization, which serves as a coordinating body for community radio stations in Quebec.Frédéric Lesemann, Jean-Marie Gourvil and Pierre Hamel, "Les radios communautaires au Q ...

References

External links

Official website

CHAI-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 ...

* Hai Hai Hai Châteauguay Radio stations established in 1980 1980 establishments in Quebec {{Quebec-radio-station-stub