A method and a communications system in which a request for data
transmitted by an airborne transmitter over a low-bandwidth air-to-ground
communication system uplink and received by a ground-based receiver. The
requested data is then transmitted over a high-bandwidth communication
system downlink, such as a DBS satellite system downlink, preferably
using an MPEG-2 compression technique, and received by an airborne
receiver located on the same aircraft as the airborne transmitter. The
received request for data is transmitted to a data network that contains
the requested data, such as the Internet or a private data network, using
circuit-switched techniques. According to the invention, the requested
data includes one of video information, audio information and textual
information.