RadioFanSF said:
I was wondering if someone could explain to me what the rating numbers mean.
In this ratings list there are two numbers - AQH (average quarter hour) and cume. AQH is the percentage of radio listeners, on average, who are listening to that radio station. What this is basically saying is that, on average, 6.6% of the listeners are tuned to KQED, 4.2% are tuned to KYLD, etc. The cume is the total number of listeners to that station. So in the example I gave - KQED vs KYLD - it is obvious that more unique individuals tuned in to KYLD (1,467,000) vs KQED (800,400). However, the typical KQED listener stays tuned in for a longer period of time than a KYLD listener.
This brings up a third number - average TSL (time spent listening) which obviously can be derived from those two. Depending upon the product, advertisers may desire a station with high TSL because it statistically offers a greater chance that a potential customer will hear multiple ads for whatever it is they're trying to sell.
There's much more to it -age breakdowns, male/female, etc. What is released publicly has little bearing on a station's ability to actually sell ads. But it's fun to watch nevertheless.
Dave B.