Squint Shot 121410

Have you ever been driving east on Grand River, toward the four corners, and noticed this odd-looking cyclinder on top of the Harmon building? Well, I have many times, and I've wondered what it could be. I'm not positive, but someone told me it is part of an internet system, sending a signal. Does anyone have any other ideas or able to confirm this? I suppose I could ask Paul Harmon, but sometimes it is just plain fun to ponder.