The top six stations in Los Angeles remained relatively unchanged in the July radio ratings, released Wednesday by tracking firm Arbitron Inc.

Top 40 music station KIIS-FM (102.7) remained top dog in the region with a 4.8 percent listener share. News talk station KFI-AM (640) and soft rock powerhouse KOST-FM (103.5) tied for second with 4.4 percent each.

Classic hits station KRTH-FM (101.1) broke a two-way tie with KAMP-FM (97.1) for fourth place to claim the spot by itself in July. KAMP slid to fifth place, and Spanish-language station KLVE-FM (107.5) took the No. 6 slot.

Since Arbitron switched its ratings format from a diary system to one using electronic measuring devices known as Portable People Meters, KIIS has consistently been the top-ranked radio station in the market and KFI has never been lower than second.

CBS Corp.-owned KFWB-AM (980), which this week announced it was changing formats from news to news talk, came in 31st place with a 1.1 percent listener share. CBS executives announced Monday they were bringing in well-known radio personality Dr. Laura Schlessinger from KFI to try to reinvigorate ratings.

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