The Telecommunications Act regulates the provision of telecommunications services, which I guess would be as clear as mud, but basically they are telephone services, broadband Internet services received in your home, and wireless services. These are regulated as telecommunications services. The Telecommunications Act regulates those services that consumers would recognize as what they receive.
The Radiocommunication Act regulates how we use the spectrum. The spectrum is what enables signals to be carried through the air. The spectrum is what is utilized by providers who provide wireless services, for example. That's why, in the case of the wireless auction, any company that wants to provide cellphone services to Canadians must use the spectrum. The Department of Industry regulates the use of the spectrum because it's a public resource, and it's very important that there not be interference among the users of the spectrum. It's the responsibility of the Minister of Industry to allocate that spectrum to users, including to companies that provide cellphone service.