CHST-FM (102.3
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 Canadian
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 ...
in
London, Ontario
London is a city in southwestern Ontario, Canada, along the Quebec City–Windsor Corridor. The city had a population of 422,324 according to the 2021 Canadian census. London is at the confluence of the Thames River (Ontario), Thames River and N ...
. The station uses the on-air brand and format ''
Jack 102.3''. CHST broadcasts from the
CFPL-TV tower in Southwest London. Due to CHST's low
ERP relative to some London area radio stations, its broadcast signal covers only
Middlesex
Middlesex (; abbreviation: Middx) is a Historic counties of England, former county in South East England, now mainly within Greater London. Its boundaries largely followed three rivers: the River Thames, Thames in the south, the River Lea, Le ...
,
Elgin, and
Oxford
Oxford () is a City status in the United Kingdom, cathedral city and non-metropolitan district in Oxfordshire, England, of which it is the county town.
The city is home to the University of Oxford, the List of oldest universities in continuou ...
counties. The station's coverage to the west is impeded by co-channel
WGRT in
Port Huron, Michigan
Port Huron is a city in and seat of government of St. Clair County, Michigan, United States. The population was 28,983 at the 2020 census. The city is bordered on the west by Port Huron Township, but the two are administered autonomously.
Po ...
.
History
Approved by the
CRTC in 1999, CHST was launched by
CHUM Limited
CHUM Limited was a Canadian media company based in Toronto, Ontario in operation from 1945 to 2007. The company was founded in 1945 as York Broadcasters Limited when it launched CHUM (AM), CHUM-AM 1050 but was acquired by salesman Allan Waters in ...
in 2000. It originally used the brand ''Star 102.3'' with a
hot 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 1980s to the present day, with varying degrees of easy listening, pop, soul ...
format, but was rebranded as the
adult hits format ''
Bob FM
BOB FM is the on-air brand of a number of FM radio stations in the United States and formerly in Canada. The BOB FM format mostly concentrates on album rock, alternative rock and pop hits from the 1980s and 1990s, especially those popular duri ...
'' in July 2003. The station was bought out by
Glassbox Television
Glassbox Television Inc. was an independent Canadian broadcasting and media company specializing in the operation of multi-platform broadcast and video-on-demand (VOD) channels, content production, and digital publishing.
The company was formed in ...
in April 2005.
On June 21, 2010, CTVglobemedia and Glassbox announced it had entered into an agreement to sell the station to
Rogers Media
Rogers Media Inc., operating as Rogers Sports & Media, is a Canadian subsidiary of Rogers Communications that owns the company's mass media and sports properties.
Operations
Current television brands owned by Rogers include two television sys ...
. The sale was approved by the
CRTC on December 22, 2010.

On September 12, 2012, Rogers received approval to increase the station's
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 ...
from 5,840 to 20,400
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 (
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 maximum ERP from 12,100 to 100,000 watts), and change its class from B1 to C1.
Broadcasting Decision CRTC 2012-490
CHST-FM London – Technical change, CRTC, September 12, 2012
Following the acquisition, the station continued to use the " Bob" name (which was associated with Bell Media
Bell Media Inc. (Canadian French, French: ) is a Canadian media conglomerate that is the mass media subsidiary of BCE Inc. (also known as Bell Canada Enterprises, the owner of telecommunications company Bell Canada). Its operations include nati ...
stations) until August 28, 2014, when it adopted the ''Jack FM
Jack FM is a radio network brand that is licensed by Sparknet Communications, with the exception of the European Union where it is licensed by Oxis Media. It plays an adult hits radio format, format, in most cases not using disc jockey, DJs.
F ...
'' brand (as with other Rogers-owned adult hits stations).
References
External links
*
CHST-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 ...
*
{{coord, 42, 56, 59, N, 81, 15, 52, W, type:landmark_region:CA, display=title
HST
HST
Jack FM stations
HST
Radio stations established in 2000
2000 establishments in Ontario