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| Broadcast area | Fresno andVisalia metropolitan areas |
| Frequency | 98.9MHz (HD Radio) |
| Branding | Soft Rock 98.9 |
| Programming | |
| Format | Adult contemporary |
| Affiliations | |
| Ownership | |
| Owner |
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| KALZ,KBOS-FM,KCBL,KFBT,KFSO-FM,KHGE,KRDU,KRZR | |
| History | |
First air date | June 5, 1975 (1975-06-05) |
Former call signs |
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Call sign meaning | Soft rock |
| Technical information[1] | |
Licensing authority | FCC |
| Facility ID | 54560 |
| Class | B |
| ERP | 19,000 watts |
| HAAT | 250 meters (820 ft) |
Transmitter coordinates | 36°38′11.80″N118°56′33.6″W / 36.6366111°N 118.942667°W /36.6366111; -118.942667 |
| Links | |
Public license information | |
| Webcast | Listen live (viaiHeartRadio) |
| Website | softrock989 |
KSOF (98.9FM, "Soft Rock 98.9") is a commercialradio station licensed toDinuba, California, United States, owned byiHeartMedia and serving theFresno andVisalia metropolitan areas.[2] KSOF carries anadult contemporary format. KSOF's studios and offices are on Shaw Avenue in North Fresno.
KSOF's transmitter is sited off Pierce Valley Drive atop Eshom Point, inBadger, California. KSOF also broadcasts inHD Radio and is available online viaiHeartRadio.
On June 5, 1975, the station signed on as KLTA.[3] It was the FM counterpart ofKRDU (1130 AM). They were owned by the Dinuba Radio Company with studios on North Alta Avenue.
On October 26, 1983, the station changed its call sign to KOJY, calling itself "K-Joy." On February 12, 1990, the station changed its call letters to KJOI. Then on October 17, 1997, it switched to the current KSOF.[4]
In the mid-1970s through the early 1990s, the station had aneasy listening format.[5] In late 1990, the station switched to asoft adult contemporary format and was named "Lite FM". The station used the "Lite" name until October 1997, when it became "Soft Rock 98.9". In the early 2000s, KSOF moved into a mainstream AC direction.
In October 2008, formerPortland, Oregon, radio personality Teri Ann Schlesser became the midday DJ, music director and public service director. Formerly with the Nelson & Terry Show onKRSK, Schlesser replaced Kristen Kelley who moved on to program another radio station.
On the morning of October 27, 2011, morning hosts "Brady and Rose" (Mike Brady and Rose Ortega) were replaced by "Bronson and Christine" (Bob Bronson and Christine Nagy) from New York City sister stationWLTW. In 2018, Schlesser moved into the morning drive time shift, the station's only live DJ. Schlesser was later replaced withValentine in the Morning fromKBIG Los Angeles.[6]