CKDO
Radio station in Oshawa, Ontario
CKDO (1580 kHz) is a commercial AM radio station in Oshawa, Ontario, Canada, serving the eastern suburbs of the Greater Toronto Area. The station airs a classic hits–oldies format and is owned by Durham Radio Inc. CKDO is one of only two radio stations in Canada that broadcast on 1580 kHz. The other is CBPK, a 50-watt weather information station in Revelstoke, British Columbia.
CKDO is powered at 10,000 watts, using a directional antenna with a two-tower array. It is a clear channel, Class A station. The transmitter is on Courtice Road in Clarington. Programming is also heard on FM rebroadcaster
CKDO-FM-1 at 107.7 MHz and on 95.9 CJKX-FM-HD3.
History
On October 5, 1946 (1946), CKDO first signed on. It was launched by T. W. Elliott, an executive with the Canadian division of General Motors.
The public source identifies “CKDO” as radio station in Oshawa, Ontario. This brief keeps that definition visible, then builds a research path around CKDO, Radio and station.
Why this record matters
A short description can identify a subject without explaining its stakes. For “CKDO”, the useful work is to connect “radio station in Oshawa, Ontario” to the records capable of establishing context and consequence.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Feb 24, 2026. The linked authority identifier is Q14875108. Authority coordinates are 43.872, -78.765. 3 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1580 and 1946.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “CKDO”, its source revision and the description used here.
- Expand the search: follow CKDO primary sources, CKDO archive and CKDO research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “CKDO”?
- What physical evidence or contemporary plan supports the description?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “CKDO” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.