KSSX
urban contemporary radio station in San Diego

KSSX (95.7 FM) is a commercial radio station located in San Diego, California, although the station is legally licensed to serve Carlsbad, in nearby North County. The station airs a rhythmic contemporary format, and is one of seven stations in the market owned and operated by iHeartMedia. The station's studios are located in San Diego's Kearny Mesa neighborhood on the northeast side, and the transmitter is atop Mt. Soledad, located in La Jolla.
History
95.9 FM (1969–1996)
Although the station began broadcasting on 95.7 in 1995, it has its origins as a Class A (local) station on 95.9 MHz known as KARL, (a MOR station from 1965 to 1979), then KKOS. During this period the station had various formats, including adult contemporary, CHR, and AAA.
However, an interference problem in Mexico ended up resulting in changes to KKOS. At the time, Califórmula owned a Tijuana station broadcasting on 95.7, XHKY-FM, and was causing interference to KKOS and co-channel KFSH-FM in Anaheim. Ultimately, KKOS and XHKY reached a deal, which was agreed to by the FCC and SCT; on September 15, 1995, XHKY moved to 99.3 at 25,000 watts, KKOS moved to 95.7 at 25,000 watts, and the previous occupant of 99.3, XHATE-FM in Tecate, moved to 95.3 MHz. On the day of the frequency change, KKOS became KUPR, still keeping the AAA format.
Country (1996–1997)
On November 22, 1996, the station began stunting with country as "Your New Country, 95.7 KUPR".
Urban adult contemporary (1997–1998)
On March 5, 1997, the station flipped to Urban AC as Magic 95.7 under new callsign KMCG.
Hot adult contemporary (1998–2000)
The station was sold by Nationwide Communications to Jacor/Citicasters. On September 7, 1998, the "Magic" format would move to XHRM (92.5 FM).
The public source identifies “KSSX” as urban contemporary radio station in San Diego. This brief keeps that definition visible, then builds a research path around KSSX, urban and contemporary.
Why this record matters
A short description can identify a subject without explaining its stakes. For “KSSX”, the useful work is to connect “urban contemporary radio station in San Diego” 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 Aug 19, 2026. The linked authority identifier is Q6338218. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1969, 1996, 1995 and 1965.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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 “KSSX”, its source revision and the description used here.
- Expand the search: follow KSSX primary sources, KSSX archive and KSSX 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
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Search terms from this dossier
This entry incorporates text from “KSSX” 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.