[badutahboy]

Another "easy" solution... presumably you've already got the radio station in your contacts list.. if not, add it and populate the "to" field by typing a couple letters.. If the first couple letters of the radio station are common in your phone book, add it as "zz" then the name of the station...

Then just copy and paste the body of your message.

If the message you're sending will always be the same, I'd use tierman's solution... otherwise, my solution is possibly the easiest way that doesn't require you to spend money on third party software (I don't think vito SMS is free)