Answer:
I had no schooling before getting my first on air job. I had a friend who was an on air talent and he gave me pointers to work on for about a year. When I felt I was ready I went to a smaller market station just outside the Houston market and met with the owner/manager. I expressed my desire to be on air. He worked with me for about 3 hours in the studio and had me train for 2 weeks (Fri and Sat nites) with an on air talent. After that I was given the Sunday morning show (0700-1300) which I held for over 8 months. I then got an offer from a country station (which is my preferred format) in a larger market to take over the weekend overnite shift (0000-0600) which I held for over 2 years. My full time job changed and the hours conflicted so I had to get out of radio, which I greatly miss. It was a great second career for about 3 years.
SUGGESTIONS : (1) Practice pronounciating your words & loosing any accent you may have. Hold a pencil between your teeth and talk. This helps with the pronounciation. (2) Do not have a air voice and a off air voice. Practice and get in the habit of using the voice you want to use on the air. (3) "Play" with a tape recorder doing song intros, read newspaper clippings & news stories. Then listen and be your hardest critic. Have others listen and tear you apart. They are not doing you a favor by being nice. (4) Research local stations and find out who is in decision making positions. When your ready they will be your contact. (5) Go to remote locations and meet the people there. Do not stalk them or be a groupie, just shoot the crap with em and don't kiss their butt. They will normally offer tips and could be your support later. (6) It is not just sitting behind a mic and pushing buttons. Prep work for your show takes almost as much time as the actual show. You gotta know the format you play (songs & artist), have to prepare for your open mic time, when you first get started it is not that easy to think once the mic opens (pucker factor maxed out) so you have to prepare. Plus you have remote events to attend and commercials to cut, these take time. Unless your a mega star your shift on air will not pay the bills. (7) Finally remember you are green and probebly suck at being on the air. Volunteer at the station and offer to work for free in order to get experience. Watching several other "jocks" style will give you ideas to work into your style.
Good Luck