CBK (AM)

Last updated
CBK
Cbc radio one watrous.svg
Broadcast areaSouthern and Central Saskatchewan
Frequency 540 kHz (AM)
Branding CBC Radio One
Programming
Format News/Talk
Ownership
Owner Canadian Broadcasting Corporation
CBK-FM, CBKF-FM, CBKT-DT, CBKFT-DT, CBKST (defunct)
History
First air date
July 29, 1939;85 years ago (July 29, 1939)
Call sign meaning
Canadian Broadcasting Corporation Henry Kelsey
Technical information
Class A (clear-channel)
Power 50,000 watts
Transmitter coordinates
 51°40′48″N105°26′48″W / 51.68000°N 105.44667°W / 51.68000; -105.44667
Links
Website CBC Saskatchewan

CBK (540 kHz) is a Canadian public radio station licensed to Watrous, Saskatchewan. It broadcasts the CBC Radio One network as a Class A clear-channel AM station powered at 50,000 watts around the clock from a non-directional antenna near Watrous.

Contents

Its studios are located at the CBC's broadcast centre at 2440 Broad Street in Regina, with an additional bureau in the Saskatoon Co-op building on 4th Avenue South in Saskatoon. The Regina facility also houses CBK-FM and CBKT-DT. In Regina, a nested rebroadcaster, CBKR-FM 102.5 MHz, simulcasts CBK for listeners who may have trouble receiving the 540 AM signal amid downtown office and apartment buildings. [1]

CBK 540 operates on a low frequency and with high power in a region with excellent ground conductivity. [2] That helps CBK's daytime signal to reach most of the southern two-thirds of Saskatchewan, including Regina, Saskatoon, Yorkton, Swift Current, Lloydminster, Moose Jaw and Prince Albert. It also provides grade B coverage as far west as Calgary and as far east as Winnipeg, and reaches across the border into North Dakota and Montana.

History

CBK officially opened during an evening ceremony in Watrous on July 29, 1939. [3] The K in the station's call sign honours Henry Kelsey, an English fur trader, explorer, and sailor who was the first recorded European to have visited what is now Saskatchewan. [4]

CBC engineers deliberately chose to place the station's transmission facilities near Watrous in order to provide the best possible broadcast signal to the densely populated portion of Saskatchewan, including the cities of Regina and Saskatoon. [5] Watrous is located about 150 kilometres (93 mi) northwest of Regina and about 100 kilometres (62 mi) southeast of Saskatoon in an area where potash-rich soil provides especially good ground conductivity, an important component in determining the strength and reach of an AM radio station's daytime ground wave signal. Additionally, Watrous, in particular, was an advantageous location due to being on the main line of the Canadian National Railway, whose telecommunications infrastructure was used to deliver content to CBC radio stations before the creation of the Trans Canada Microwave system. [6]

Because of the factors making the CBK signal particularly strong, the station was originally intended as the CBC's clear-channel station for the Prairies, [5] broadcasting the full CBC radio schedule together with privately owned affiliates in the region broadcasting portions of the schedule (clear-channel CKY in Winnipeg—now CBW—was one such affiliate at the time). The strong daytime signal also spills into the United States and was initially the only radio station receivable during the daytime in parts of North Dakota and Montana. [7]

For most of World War II, CBK aired programming in both English and French. The French programming was prepared at CBK by a two-person crew and included newscasts, musical programs, and transcriptions of CBC programming produced in Montreal. [7]

At the start, CBK had no physical presence in Saskatchewan beyond Watrous. Although privately owned CBC affiliates in the province occasionally originated programming to be aired over the full CBC network including CBK, [8] most local and regional programming on CBK was produced and fed from Toronto, and then from Winnipeg beginning in 1948. The station's first full production studio within Saskatchewan opened on October 1, 1954, in Regina. [9] An additional studio facility opened in Saskatoon following the sign-on of television station CBKST. In 1980, CBK's regional weekday morning program began to be hosted simultaneously from both Regina and Saskatoon. [10]

On June 4, 1976, CBK's transmitting tower was toppled by strong winds during a severe thunderstorm. [11] CBK's staff went back on the air in the cities of Regina and Saskatoon by temporarily taking over CBC's low-powered FM transmitters normally used to air French language programming. Within a few days, the 540 kHz signal was restored using a temporary tower while a new permanent one was built. [12] The replacement tower was completed in 1983 and, like the original, is a quarter-wave monopole antenna 141.7 metres (465 ft) tall. [13]

The station's original mercury vapour tube transmitter manufactured by RCA was replaced in 1975 by a Continental Electronics transmitter, which could be monitored and controlled remotely from Regina. [14] In 1988, a Nautel solid-state transmitter was added. [15]

Transmitter building

One of the station's distinctive features was its 70.2 m2 (756 sq ft) [16] Art Deco transmitter building located just east of Watrous on Agnes Street. [7] Until operations became nearly completely automated from Regina with the addition of the solid-state transmitter in the 1980s, [13] the building was staffed by CBC personnel, for whom the CBC had company housing built in Watrous. [17] Before automation, and with the exception of during World War II when armed guards patrolled the property, the building was routinely open for the public to tour. [18]

The building itself was designed by the CBC's architecture department. It was two storeys tall (of four split-levels) [18] and had a white stucco exterior with blue trim. Inside, the transmitter and its control room were prominently displayed in the centre. The original RCA transmitter contained a 12.2-metre (40 ft) long red-and-chrome façade, visible from a gallery accessible to visitors, and was set atop a linoleum floor depicting a map of Canada marking the locations and call signs of all CBC-owned and affiliated radio stations in the country as of 1939. [7] [19]

The transmitter and control room were flanked by a small studio to keep the station on air in the event of an emergency, a studio control room, a workshop, a stenographer's office, and storage space. [18] For the use of CBC personnel employed at the facility, the building also contained a heated, two-car garage and emergency living quarters consisting of bunk beds, a kitchenette, and a living room. [7] In the mid-1960s, the living quarters were expanded with the addition of a two-person underground fallout shelter containing duplicated transmitter controls and a small studio to be used to broadcast news in the event of a nuclear attack. A backup electrical generator with fuel tank ensured that the station could remain on air for weeks without power and under control from inside the fallout shelter. [18] The living quarters and emergency broadcast capabilities were briefly reactivated in late 1999 to provide contingency in the event of the year 2000 problem interrupting normal operations. [20]

The design of the building included a number of technological innovations for its time, including air conditioning, special "dust and water proof" double-paned windows, and a unique transmitter cooling system involving the use of over 3,400 litres (900 US gal) of water per hour flowing through the chamber housing the tubes and exiting through to sprayers on the building's copper roof, where water sprayed to a depth of as much as 23 centimetres (9 in) was allowed to evaporate to further counteract the heat generated by the transmitter. [16] [18]

In 2007, the transmitter was moved into a steel shed next to the transmitting antenna. Having been made redundant, the original transmitter building fell into disrepair. While there was an effort by a local heritage committee in Watrous to preserve the building as an historic site, the high cost of removing dangerous interior materials such as asbestos and lead paint made this unfeasible, and the CBC decided to demolish the building in the summer of 2015. [21] Before demolition, the heritage committee salvaged components and artifacts for preservation. [22] A 2019 revitalization plan for the communities of Watrous and Manitou Beach called for potentially building a replica of the building at some point in the future. [23]

Local programming

CBK and its repeater stations air several local shows, in addition to CBC network programming. Weekdays begin with The Morning Edition. At noon, Blue Sky is heard and in afternoon drive time, The 306 is broadcast. Saturday and Sunday mornings, Saskatchewan Weekend airs.

In Saskatoon, CBK-1-FM 94.1 has carried its own local morning program, Saskatoon Morning, in place of the Regina-based wake up show The Morning Edition, since 2013. It airs from the CBC's Saskatoon bureau in the Affinity Building at 100-128 4th Avenue South in downtown Saskatoon. Saskatoon Morning began streaming online on April 29, and began airing on 94.1 in September after the CBC won Canadian Radio-television and Telecommunications Commission approval to move the program over-the-air. For the rest of its broadcasting day, CBK-FM-1 carries the same programming as CBK. [24]

Rebroadcasters

In 2000, the CBC opened a local FM repeater of CBK in Regina, CBKR-FM 102.5. In 2006, a Saskatoon repeater was added, CBK-1-FM 94.1. Both cities had been plagued with reception problems of the main 540 AM signal.

CBK has the following rebroadcasters. Except for its Regina, Saskatoon and Meadow Lake transmitters, all are officially part of the licence of CBKA-FM in La Ronge (see below):

Rebroadcasters of CBK
City of license Identifier Frequency RECNetCRTC Decision
Beauval CBKB-FM101.5 FM Query
Buffalo Narrows CBKD-FM103.5 FM Query
Cumberland House CBKV-FM94.9 FM Query
Denare Beach CBKO-FM94.3 FM Query
Fond-du-Lac CBKG-FM100.1 FM Query
Île-à-la-Crosse CBKC-FM105.1 FM Query
Island Falls CBKN-FM105.1 FM Query
La Loche CBKE-FM95.5 FM Query
Meadow Lake CBKM-FM98.5 FM Query
Montreal Lake CBKL-FM93.3 FM Query
Patuanak CBKK-FM105.5 FM Query
Pelican Narrows CBKW-FM105.9 FM Query
Pinehouse Lake CBKJ-FM94.1 FM Query
Regina CBKR-FM102.5 FM Query 99-459
Saskatoon CBK-1-FM94.1 FM Query 2006-84
Southend CBKP-FM91.7 FM Query
Stanley Mission CBKI-FM95.5 FM Query
Stony Rapids CBKH-FM93.3 FM Query
Uranium City CBDH-FM105.1 FM Query

Community-owned rebroadcasters

Rebroadcasters of CBK
City of license Identifier Frequency RECNetCRTC Decision
Wollaston Lake VF204091.9 FM Query
Athabasca Hydro Station VF228088.1 FM Query 94-614

Though separately licensed, CBKA-FM in La Ronge is a full-time satellite of CBK. Until 2009, that station produced its own noon-hour show and regional news updates, although it aired both The Morning Edition and The Afternoon Edition. [25]

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References

  1. ↑ FCCdata.org/CBKR-FM
  2. ↑ Schacherl, Eva (July 21, 1979). "40 years later CBC radio recalls roots". Saskatoon Star-Phoenix. p. 71. Retrieved April 18, 2023.
  3. ↑ "Special Broadcast Will Mark Opening". Saskatoon Star-Phoenix. July 29, 1939. p. 10. Retrieved April 12, 2023.
  4. ↑ ""K" for Kelsey". Saskatoon Star-Phoenix. July 29, 1939. p. 10. Retrieved April 12, 2023.
  5. 1 2 "Watrous Ideal for Radio Transmitter". Saskatoon Star-Phoenix. July 29, 1939. p. 11. Retrieved April 12, 2023.
  6. ↑ "New C.B.C. Station Rounds Into Form". Saskatoon Star-Phoenix. April 17, 1939. p. 4. Retrieved April 13, 2023.
  7. 1 2 3 4 5 Windover, Michael (2015). "Designing Public Radio in Canada". RACAR: revue d'art canadienne / Canadian Art Review. 40 (2): 42–56. ISSN   0315-9906 . Retrieved April 12, 2023.
  8. ↑ Green, Douglas (October 2, 1954). "Premier Douglas opens new CBC Regina studio". The Leader-Post. Regina, Saskatchewan. p. 12. Retrieved April 12, 2023.
  9. ↑ "CBC Studios in Regina Serving Saskatchewan". Saskatoon Star-Phoenix. October 8, 1954. p. 4. Retrieved April 12, 2023.
  10. ↑ "A Tale Of Two Cities: CBC Morning Edition". Saskatoon Star-Phoenix. July 29, 1989. p. 12. Retrieved April 27, 2023.
  11. ↑ "One man dies in storm, several hurt". The Leader-Post. Regina, Saskatchewan. June 4, 1976. p. 1. Retrieved April 12, 2023.
  12. ↑ "Tower from Regina firm". The Leader-Post. Regina, Saskatchewan. June 10, 1976. p. 4. Retrieved April 12, 2023.
  13. 1 2 "CBK Radio Brief History". watrousheritage.ca. Watrous Manitou Beach Heritage Centre. Archived from the original on September 28, 2021. Retrieved April 14, 2023.
  14. ↑ Schacherl, Eva (July 21, 1979). "40 years later CBC radio recalls roots". Saskatoon Star-Phoenix. p. 72. Retrieved April 14, 2023.
  15. ↑ "Corporate Profile: CBC Saskatchewan – providing programming that is unique, essential and connected". The Leader-Post. Regina, Saskatchewan. January 1, 2000. p. 65. Retrieved April 14, 2023.
  16. 1 2 "CBK Transmitter is Scientific Achievement". Saskatoon Star-Phoenix. July 29, 1939. p. 10. Retrieved April 14, 2023.
  17. ↑ "C.B.C. Spends $30,000 On Watrous Houses". Saskatoon Star-Phoenix. January 27, 1940. p. 15. Retrieved April 12, 2023.
  18. 1 2 3 4 5 Doug Squires; J.L. Marshall; Joyce Edison (1984). "Our Radio Station". Prairie reflections : Watrous, Venn, Manitou Beach, Renown, Amazon and districts (PDF). Watrous, Saskatchewan: Watrous and District History Committee. pp. 389–394. ISBN   9780919845077. Archived from the original (PDF) on November 3, 2021.
  19. ↑ "CBK Floor Map". watrousheritage.ca. Watrous Manitou Beach Heritage Centre. Archived from the original on September 28, 2021. Retrieved April 12, 2023.
  20. ↑ Killick, Adam (November 26, 1999). "Broadcasting live from underneath Saskatchewan..." National Post. Toronto, Ontario. pp. 1, 4. Retrieved April 14, 2023.
  21. ↑ Huck, Nichole (July 20, 2015). "Historic CBK transmitter building in Watrous to be demolished". CBC News. Canadian Broadcasting Corporation. Archived from the original on November 20, 2015. Retrieved April 12, 2023.
  22. ↑ Morin, Chris (July 20, 2015). "Historic radio building to be destroyed". The Leader-Post. Regina, Saskatchewan. p. 7. Retrieved April 12, 2023.
  23. ↑ "Watrous–Manitou Revitalization Plan" (PDF). Prairie Wild Consulting Co. 2019. pp. 4, 59, 72. Archived from the original (PDF) on April 30, 2022. Retrieved April 12, 2023.
  24. ↑ "CBC's Saskatoon Morning show to start Thursday". CBC News. September 23, 2013.
  25. ↑ "Radio operation in La Ronge falls victim to CBC budget cuts". CBC News. March 26, 2009.
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