Text: Capture ratio measures an FM tuner's ability to sort out two stations operating on the same frequency. A tuner with a poor capture ratio will pick up both stations simultaneously, making it impossible to listen to either. A tuner with a good capture ratio will "capture" the stronger station and reject the weaker one. Capture ratio is expressed numerically; the lower the figure, the better the capture ratio. Don't confuse capture ratio with selectivity. Selectivity refers to the tuner's ability to separate adjacent stations on the dial. Capture ratio refers to the separation of stations on the same spot on the dial.

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