Excellent work, bluejet...thanks so much for submitting. As much as I like the graphic (and I do), it doesn't say "broadcasting" strongly enough to me. Could be medical even if it weren't for the text. If you're interested in putting in more work I would suggest incorporating a microphone in some way.
That said, this is very simple, very clean...both things I quite appreciate.
Thanks again for your entry!
Much respect,
JJ