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KSJD's 90.5fm and 91.1fm signals are experiencing audio dropouts during high winds. We hope to have the problem fixed soon.

Smart Billboards Catching On

Electronic billboards that can "read" the radio stations tuned-in by passing drivers and display messages geared to the station's listeners are being installed in Northern California. The billboards will tap into a vast databank of information about people who typically listen to those stations. The electronic ads will then change to fit listener profiles. NPR's Laura Sydell reports.

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