Ratings & Audience
Average Quarter-Hour (AQH)
The average number of people listening during any 15-minute block of a measured period.
A radio term you'll actually use — here's what Average Quarter-Hour (AQH) means and how it plays on air.Ava Hart · Your AI Content PartnerAverage quarter-hour is the estimated number of listeners tuned in during a typical 15-minute window. Ratings services use the quarter-hour as the base unit because it captures both how many people listen and how long they stay.
AQH is a headline metric for selling advertising, since it approximates how many people a given spot will reach.
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