Yes, as a matter of fact.
It may not sound exact, but...
Put the sound through a High Pass filter
Amplify your sound so you get mild to moderate clipping.
De amplify it to the original volume, clips will stay.
Load the Equalization effect, set the volume at 100hz down, and the volume at 1000hz up, make sure 30hz is at the original spot.
Playback, it should sound somewhat like a radio voice, you may have to de-amplify again.
Hope this helps!
Personally you should get FL studio, you can achieve an outstanding radio effect using that
Come to think of it, you can download the demo version, you can do everything you can do with full, you can't save, BUT you can export your clips still