> Wouldn't the repeaters need a sat signal themselves?
As I understand it, yes. The way I was told is that XM terrestrial repeaters have receive and transmit systems. Basically, the receiver picks up the satellite signal, and it goes to the transmitter, which re-transmits it. According to XM's website, it is not licensed to provide service in Alaska or Hawaii. However, I believe you only need a US address to subscribe to the internet streaming service.