Confine transmissions to special groups

Usage examples of narrowcast.

It allows for the narrowest of narrowcasting through the use of e-mail mailing lists, discussion groups, message boards, private radio stations, and chats.

Telltales flickered on the temples of the shades, too, indicating that they were tuned to a narrowcast from one or more of the wallboards.

The image-shell shifted with him, so that he looked down at the narrowcast from Shadows as though it were a desktop screen.

Collateral discharge, the spreading, non-specific recoil from the directed narrowcast wave the battery was throwing down.

Okoye, watching the narrowcast from the sail console, thought the answer obvious.

She stood conspicuously next to the home security panel, where a touch of her finger would narrowcast an alarm and a camera view to the local police.

His hands folded together against the cold, nobody saw him twisting his rings, setting up the narrowcast stream to his inbox on Earth.

Ransome did not notice, lost in the flickering narrowcasts that held and surrounded him.

No matter how powerful they were, tight-beam transmissions aimed at one tiny point in the sky had no impact on the normal use of the airwaves, and attempts to ban such narrowcasts were therefore an unwarranted infringement of free speech.