Later, GPRS was upgraded to EDGE, which differs mainly by radio modulation, squeezing more data capacity in same radio bandwidth.

It was unusual for Mission Control to waste radio bandwidth on vision, when a speech circuit with teletype confirmation was all that was really necessary.

At some point the switch takes place, as the limited radio bandwidth is reallocated to data service to mobile equipment, and television and other media move to cable.

Rowe has also created a frequency-division multiplex (FDM) soft-modem which carries the digital voice (DV) in only 1.2 kHz of radio bandwidth.

Each 200-line picture required 20 seconds for a complete video transmission and it used a radio bandwidth of about 1.2 kilohertz.

Each 600-line picture required about one second to be read from the vidicon tube, and they required a radio bandwidth of about 220 kilohertz.

Early on, the posts ministry decided that the available space on the radio bandwidths for cellular phones allowed for only two competitors in each market, and one of them would be N.T.T.

Most modulation techniques put as many bits in as few Hertz of radio spectrum as possible, so the available radio bandwidth is used efficiently.

He declared bankruptcy in 1941, the same year the U.S. and Mexico reached an agreement on allocating radio bandwidth and shut down XERA.

The system spectral efficiency is the aggregate throughput in the network divided by the utilized radio bandwidth in hertz.