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In broadcast engineering, directional array refers to an antenna array arranged such that the superposition of the electromagnetic waves produce a predictable electromagnetic field. By spacing 2 or more antenna elements apart, changing the length of the transmission line from the transmitter, varying the power output, and shifting the phase, radio broadcasters can "shape" the area of signal coverage.

Geographically close co-channel or adjacent channel stations employ directional arrays (or a single directional antenna) so that other broadcasters may utilize the same or adjacent frequency. In the United States, the Federal Communications Commission offers a first-come, first-served approach, meaning licenses granted on co-channel or adjacent channels must protect the service contour of the previously licensed facility, thus, a directional array may be used to "shape" the station around existing facilities.



Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Directional_array — Please support Wikipedia.
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36804 videos foundNext > 

Shared Apex Loop Array - Wideband Directional Receiving Antenna

Here is a demonstration of a ground mounted, 15 foot radius, ground mounted, four element Shared Apex Loop Array. The controller LED's indicate the direction...

My antenna array why I created my home made coat hanger multi directional antenna

This beast is what I have used to try to pick up HD TV stations. Once upon a time I thought I could find the perfect position and leave it there and everythi...

Long Range Horn Array Speaker Technology by TOA : DigInfo

DigInfo - http://www.diginfo.tv TOA exhibited sample speakers developed using long range horn array speaker technology at Inter BEE 2008 (2008 International ...

Xirrus WiFi Array - Interop 2011

Brian Mason and Dariann Lucarelli join Jeffrey Powers to talk about Xirrus Wifi Array. These are more intelligent access points. These are directional antenn...

Omni-directional mobile robot with proximity sensor

The following video is an experiment of a mobile robot. Two part of the robot are cover by Proximity sensor array. One is on the top of the robot, another is...

Exclusive Demo: Xirrus XN8 Wi-Fi Array

Dariann Lucarelli gives an exclusive overview of the XN8 Wi-Fi Array manufactured by Xirrus Inc. Xirrus Arrays combine everything needed to deploy a high per...

LOFAR PAN

FAR is the Low-Frequency Array for radio astronomy, built by ASTRON, the Netherlands Institute for Radio Astronomy and operated by astron's radio observatory...

Exclusive XN16 Xirrus Wi-Fi Array Demo

Exclusive overview of the XN16 Xirrus Wi-Fi Array manufactured by Xirrus Inc. Xirrus combines everything needed to deploy high performance wireless networks ...

Mainline - Please Touch Museum Case Study

This is a brief overview of the installation at the Please Touch Museum. We solved their theater audio problems using a Bosch Vari‑directional Array. For mor...

NI-WL600 Cordless Multi-Directional Iron, Stainless Steel Soleplate ; Cordless Steam Iron

Buy on amazon: http://amzn.to/1dzdTh7 Ironing no longer has to be considered a tiresome chore thanks to this uniquely designed handheld iron by Panasonic. Eq...

36804 videos foundNext > 

2 news items

 
MarketWatch
Mon, 28 Jul 2014 05:00:00 -0700

The company's patented Digital Super Directional Array (DSDATM), PureAudioTM and EchoStopTM far-field microphone technologies enhance a wide range of audio products to eliminate background noise and ensure the optimum performance of voice ...
 
FinancialNews.co.uk
Wed, 02 Jul 2014 09:18:45 -0700

The company´s patented Digital Super Directional Array (DSDATM), patented PureAudioTM and patented EchoStopTM far-field microphone technologies enhance a wide range of audio products to eliminate background noise and ensure the optimum ...
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