Final answer:
Radio stations collect revenue through advertising and subscription fees, which indirectly charge listeners for dedications.
Step-by-step explanation:
Rather than directly charging listeners for dedications, radio stations have found different ways to collect revenue. One common method is by selling advertising, which indirectly charges listeners by taking up their time. The cost of advertising is often built into the product cost, so consumers who purchase the advertised goods are essentially paying for the radio service. Satellite radio companies, on the other hand, charge a regular subscription fee for streaming music without commercials, where only those who pay for the subscription will receive the broadcast.