People are always curious how you can make in radio; the answer isn't simple. There are many factors, depending on market size, sales and ratings. I can give you examples in the Detroit market and I will however attempt to set some parameters for those really interested in radio as a career.
In Detroit and many other major markets you make all your money in Morning and Afternoon drive. Even the smaller stations pay a premium for Morning and afternoon talent. The Morning Shows on music station make the most, while the PM drive shows make the $$ on talk stations.
Dick Purtan, Jim Harper, Mojo in the Morning and Drew and Mike are the bonus babies in Detroit in Mornings. Purtan, Harper and Drew and Mike make millions while Mojo and Paul W. Smith caliber shows make in the "hundreds of thousands."
In talk radio, Stoney and Wojo set the standard with a show that pulls in massive revenue for WDFN, these guys are well into the 6 figure range and well deserved. Sadly, midday guys like Sean Baligean and Doug Karsch are well paid but under appreciated, both short of the 100k mark, Sean moreso than Doug who is still making PM Drive money.
Legends like Karen Savelly, Ken Calvert and similar personalities of their caliber haul in mid 6 figures to host their popular music shows.
Bottom line, when you show a track record of consistency in the ratings, you are paid well, if you are young and have no track record, you are asked to prove your worth.
Non-prime shows like Midday, Evening and overnights are ridiculously low, paying in the 40k range for average talent.
The industry pays well but it is a pressure cooker, everybody wants results and will only pay for current performance. Radio is a business that pays when you "make it."
You are also likely to make more if you are at a station that actually makes money and has great ratings.
Beginning wages in radio are embarrassing, you won't make more thank 30k as a young Air Personality. This isn't a career for a person with a family, you must start young or have another source of income.
This post is just an overview. I can get more specific if you leave a comment, I will do my best to give more detail.
Radio is a great business, but it is unstable. Exciting yes, but tenuous.