The dielectric constant of air changes when you compress it, and acoustic n oise can change it tolerably fast, but I somehow doubt that thunderclaps ar e going to be a troublesome noise source in this context. Multiple path eff ects could be more of a problem, but they can be really evil, and are bette r tackled by highly directional receivers or multiple receivers.
I've got a good memory, but not that good.
But it does double as an advertising arena, as John Larkin demonstrates fro m time to time. That particular example struck me as more impressive than i nteresting - but I didn't do the work, and I have learned that anything I'v e worked on always looks a lot more interesting to me than it does to other people.