View source for CBOT-DT

{{Short description|Television station in Ottawa}}
{{Use mdy dates|date=February 2024}}
{{Infobox television station
| callsign               = CBOT-DT
| city                   = Ottawa, Ontario
| logo                   = CBOT-DT (2017).svg
| logo_size              = 220px
| branding               = {{ubl|CBC Ottawa (general)|''CBC Ottawa News'' (newscasts)}}
| digital                = 25 ([[UHF]])
| virtual                = 4
| translators            =
| subchannels            = 
| affiliations           = [[CBC Television]]
| airdate                = {{Start date and age|1953|06|02|p=y}}
| location               = {{ubl|[[Ottawa]], Ontario|[[Gatineau]], Quebec}}
| country                = Canada
| callsign_meaning       = CBC Ottawa Television
| former_callsigns       = CBOT (1953–2011)
| former_channel_numbers = {{ubl|'''Analog:''' 4 ([[VHF]], 1953–2011)}}
| owner                  = [[Canadian Broadcasting Corporation]]
| licensee               = 
| sister_stations        = [[CBOFT-DT]], [[CBO-FM]], [[CBOQ-FM]]
| former_affiliations    = 
| erp                    = 311.485 [[watt|kW]]
| haat                   = {{convert|426.4|m|ft|0|abbr=on}}
| coordinates            = {{coord|45|30|11|N|75|51|1|W|type:landmark|name=CBOT}}
| licensing_authority    = [[CRTC]]
| website                = {{URL|http://www.cbc.ca/news/canada/ottawa|CBC Ottawa}} 
}}

'''CBOT-DT''' (channel 4) is a [[CBC Television]] station in [[Ottawa]], Ontario, Canada, serving the [[National Capital Region (Canada)|National Capital Region]]. It is part of a [[Duopoly (broadcasting)#Canada|twinstick]] with [[Ici Radio-Canada Télé]] station [[CBOFT-DT]] (channel 9). The two stations share studios at the [[CBC Ottawa Production Centre]] on [[Queen Street (Ottawa)|Queen Street]] (across from the [[O-Train]] [[Line 1 (O-Train)|Line 1]] [[Parliament station|light rail station]]) in [[Downtown Ottawa]], alongside the main corporate offices of the CBC; CBOT-DT's transmitter is located on the [[Ryan Tower]] at [[Camp Fortune]] in [[Chelsea, Quebec]], north of Gatineau.

==History==
{{Expand section|information on the history of CBOT|date=June 2013}}
[[File:CBOT 1982 logo.svg|thumb|right|Channel 4 logo used by CBOT for several years in the early 1980s.]]
CBOT went on the air for the first time on June 2, 1953 (broadcasting the [[Coronation of Queen Elizabeth II|coronation]] of the Queen of Canada, [[Elizabeth II]]), becoming the third television station in Canada. Before the launch of Télévision de Radio-Canada station CBOFT, CBOT aired both [[Canadian English|English]] and [[Canadian French|French-language]] programs.

During the late 1970s into the early 1980s, CBOT was known as "CBC 4 Ottawa", and its newscasts were known as ''CBC 4 News''. In 1980, CBOT's 6 p.m. newscast was anchored by Ab Douglas, and by Joe Spence at 11:27, following ''[[The National (CBC)|The National]]''. During the mid-1980s, the station was known as "CBOT 4", now "CBC Ottawa".

==News operation==
{{Expand section|information on the history of CBOT's news operation|date=November 2011}}
CBOT-DT presently broadcasts 10 hours, 40 minutes of locally produced newscasts each week (with two hours each weekday, a half-hour on Saturdays and ten minutes on Sundays). CBOT airs local news programming in the form of a 90-minute newscast from 5 to 6:30&nbsp;p.m. and a half-hour newscast at 11 p.m. on weekdays. On weekends, the station airs a half-hour 6 p.m. newscast on Saturdays and a ten-minute summary airs on Sundays at 11 p.m.

===Notable former on–air staff===
* [[Ian Black (meteorologist)|Ian Black]] ([[Canadian Meteorological and Oceanographic Society|CMOS]]-endorsed weathercaster) – meteorologist
* [[Rita Celli]] – former ''CBC News: Ottawa at Six'' anchor
* [[Lloyd Robertson]] (later anchor of ''[[CBC News: The National]]'' and the ''[[CTV National News]]'')

==Technical information==
===Subchannel===
{| class="wikitable"
|+Subchannel of CBOT-DT<ref>{{cite web|url=http://www.rabbitears.info/market.php?request=station_search&callsign=CBOT#station|title=RabbitEars TV Query for CBOT|website=[[RabbitEars.info]]|accessdate=January 4, 2025}}</ref>
! [[Digital subchannel#Canada|Channel]]
! [[Display resolution|Res.]]
! [[Aspect ratio (image)|Aspect]]
! Short name
! Programming 
|-
! scope = "row" | 4.1 
| [[720p]] || [[16:9]] || CBOT-DT || [[CBC Television]] 
|-
|}

===Analog-to-digital conversion===
On August 31, 2011, when Canadian television stations in CRTC-designated mandatory [[media market|markets]] [[Digital television in Canada|transitioned from analog to digital broadcasts]],<ref name="Analog to Digital">[http://www.ic.gc.ca/epic/site/oca-bc.nsf/en/ca02336e.html Digital Television – Office of Consumer Affairs (OCA)] {{webarchive|url=https://web.archive.org/web/20080916083326/http://www.ic.gc.ca/epic/site/oca-bc.nsf/en/ca02336e.html|date=September 16, 2008}}</ref> the station's digital signal remained on [[UHF]] channel 25, using [[virtual channel]] 4.

===Transmitters===
CBOT operated six analog television rebroadcasters in [[Eastern Ontario]] and included communities such as [[Pembroke, Ontario|Pembroke]]. Due to federal funding reductions to the CBC, in April 2012, the CBC responded with substantial budget cuts, which included shutting down CBC's and Radio-Canada's remaining analog transmitters on July 31, 2012.<ref>[http://cbc.radio-canada.ca/en/media-centre/2012/04/04/ Speaking notes for Hubert T. Lacroix regarding measures announced in the context of the Deficit Reduction Action Plan]</ref> None of CBC's or Radio-Canada's television rebroadcasters were converted to digital.

====Former rebroadcasters of CBOT====
{| class="wikitable"
! scope = "col" | Station
! scope = "col" | [[City of licence]]
! scope = "col" | [[Television channel|Channel]]
! scope = "col" | [[effective radiated power|ERP]]
! scope = "col" | [[HAAT]]
! scope = "col" | Transmitter coordinates
! scope = "col" | CRTC/Notes
|- style="vertical-align: top; text-align: left;"
! scope = "row" | CBOT-1
| [[Foymount, Ontario|Foymount]]
| 14 ([[UHF]])
| 42.3&nbsp;kW
| 229.2 m
| {{coord|45|25|48|N|77|18|14|W|type:landmark|name=CBOT-1}}
| [http://www.crtc.gc.ca/eng/archive/1991/DB91-638.HTM 91-638]<br>[http://www.crtc.gc.ca/eng/archive/2011/2011-497.htm 2011-497]
|- style="vertical-align: top; text-align: left;"
! scope = "row" | CBOT-2
| [[Barry's Bay]]
| 19 ([[UHF]])
| 8.6&nbsp;kW
| 170.4 m
| {{coord|45|29|23|N|77|42|56|W|type:landmark|name=CBOT-2}}
|
|- style="vertical-align: top; text-align: left;"
! scope = "row" | CBOT-3
| [[Whitney, Ontario|Whitney]]
| 9 ([[VHF]])
| 0.01&nbsp;kW
| NA
| {{coord|45|29|18|N|78|12|22|W|type:landmark|name=CBOT-3}}
|
|- style="vertical-align: top; text-align: left;"
! scope = "row" | CBOT-4
| [[Maynooth, Ontario|Maynooth]]
| 51 ([[UHF]])
| 1.535&nbsp;kW
| 121.5 m
| {{coord|45|13|37|N|77|52|29|W|type:landmark|name=CBOT-4}}
|
|- style="vertical-align: top; text-align: left;"
! scope = "row" | CBOT-5
| [[McArthur's Mills]]
| 33 ([[UHF]])
| 4.286&nbsp;kW
| 125.3 m
| {{coord|45|5|18|N|77|38|49|W|type:landmark|name=CBOT-5}}
|
|- style="vertical-align: top; text-align: left;"
! scope = "row" | CBOT-6
| [[Deep River, Ontario|Deep River]]/<br>[[Pembroke, Ontario|Pembroke]]
| 3 ([[VHF]])
| 43.3&nbsp;kW
| 152.2 m
| {{coord|46|2|40|N|77|28|4|W|type:landmark|name=CBOT-6}}
|[http://www.crtc.gc.ca/eng/archive/1990/DB90-1077.htm 90-1077]
|- style="vertical-align: top; text-align: left;"
|}

==References==
{{Reflist}}

==External links==
*[http://www.cbc.ca/news/canada/ottawa CBC Ottawa]
* [https://broadcasting-history.ca/television/television-stations/ontario/ontario-eastern/CBOT-DT CBOT-DT] at The History of Canadian Broadcasting by the [[Canadian Communications Foundation]]
*{{RecnetCanada|CBOT}}

{{Ottawa-Gatineau TV}}
{{Watertown TV}}
{{CBC TV stations}}

{{DEFAULTSORT:Cbot-Dt}}
[[Category:1953 establishments in Ontario]]
[[Category:CBC Television stations|BOT-DT]]
[[Category:Television channels and stations established in 1953]]
[[Category:Television stations in Ottawa–Gatineau|BOT-DT]]