Still more volume may be available from microwaves in the third and newest trick: satellite transmission.

FORBES: The Trials Of Amory Houghton Jr.

The main drawbacks are cost and the added weight of the equipment needed for satellite transmission.

CNN: STORY HIGHLIGHTS

Many of the rural branches of South Africa's Standard Bank rely on satellite transmission, diesel generators and solar power.

ECONOMIST: Business in Africa

And, in 1985, National Technological University became the first school to offer online degree courses via satellite transmission.

FORBES: Distance Learning Has Been Around Since 1892, You Big MOOC

Indices for telecommunications, radio, television and satellite transmission services, hotel service, wholesale trade, e-commerce, software and IT services, and water transport all stayed at 60.

FORBES: Market Still Ignores China's Relatively Positive Economy

Other revenues (satellite, transmission, analog) are expected to stall, making Explorer's lead even more important.

FORBES: Boxed in?