cone of silence


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cone of silence

[′kōn əv ′sī·ləns]
(navigation)
A cone-shaped region, directly over the antenna of a radio-beacon transmitter, in which no signal is detected.

cone of silence

cone of silence
i. An inverted cone-shaped space directly over the aerial towers of some forms of radio beacons, in which signals are unheard or greatly reduced in volume.
ii. In some repeater installations using high-gain antennae, located above the level of average terrain, a cone of silence exists under the antennae. This zone may extend outward for several miles in all directions at ground level. This makes a nearby repeater useless.
iii. An approximately coned-shaped extent of space extending from a radar transmitting set and through which pulses are not sent because of inadequate antenna coverage.
References in periodicals archive ?
He finally lifted the cone of silence on Federated's "store of the future" and disclosed to Women's Wear Daily, HFN's sister publication, details of the long-awaited project.
The Japanese General Staff heard of only the first landing on the continent and, as a cone of silence descended, it decided the campaign was a failure and ceased operations.
Designated offices have been replaced by Heads Down, for individual work; Team Rooms, for collaborative work; and a Cone of Silence, for private work.
The Cone of Silence, with McConaghy MD Jono Morris at the helm for his first MC38 class regatta, showed potential in the sixth race, winning their first of the series.
Coach Claude Julien, who lowers the Cone of Silence every time he discusses his starting goaltender choice, won't say who will be in net when the B's play next, which will be against the Toronto Maple Leafs Thursday at the Garden.
Matthews, however, continues to hold that process up, firmly entrenched in a self-imposed cone of silence as his lawyers and public relations people sort through their options.
Last month things came to a head as a cone of silence descended over the War Museum for 20 days.
Hedge fund executives will now be able - within reasonable limits - to tell their story, open their web sites, talk to the media, run advertisements, showcase their expertise, and generally run their businesses as businesses, without the government-imposed cone of silence that has constrained the industry for decades.