Audience ratings are not just the currency of your station’s programming team, it’s important for fundraisers as well. After all, this is the pool from which you gain supporters and build part of the value proposition when communicating to corporate sponsors. Join Dave Sullivan, Manager of PPM Client Services at the Radio Research Consortium (RRC), for this 101 lesson in how to interpret the data, from TSL to Cume and listener hours. Also, you’ll find…