white space device

white space device

Any fixed or mobile device that uses the frequencies in the unused white spaces bands. See TV white spaces.
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If it detects no emission above this threshold in a channel, the white space device (WSD) is allowed to transmit; otherwise the WSD keeps silent or looks into other channels.
The FCC also approved its first white space device, the Koos Technical Services (KTS) Agility White Space Radio, near the end of 2011; shortly thereafter, it approved another white space device from Adaptrum.
dagger]) White space device is an FCC-certified wireless device that can be used in the RF spectrum below 700 MHz.
The commission plans to devote one UHF band in each market for use by white space devices and wireless mics.
TV white space devices can exploit this fact to use the vacant channels without displacing any signals because they are limited to lower power levels than the potential spillovers that nearby TV stations would have generated.
The FCC said it will "closely oversee and monitor the introduction of TV white space devices," although that might mean so much red tape that they never come to market.
The use of sensing will greatly enhance the rollout of TV White Space devices by ensuring that users of this spectrum access frequencies without being subject to interference from other users," said Thomas Stroup, CEO of SSC.
Comments are due to the FCC in September on proposed changes to agency rules relating to preserving one vacant channel in the TV UHF band for use by white space devices and wireless mics.
This database dynamically assigns noninterfering frequencies to white space devices, and adapts to new TV broadcasts, licensed microphone users as well as other TV band users operating in the area.
New white space devices and wireless microphone users can certainly coexist in the white spaces if the new FCC policy reflects an appreciation for the different classes of wireless microphone users who deserve protection from interference.
White space devices must also be capable of sensing and avoiding channels reserved for protected users in their area, including TV stations, wireless microphones and other grandfathered users of these TV bands.
The FCC's tests of prototype white space devices at FedEx field prior to Saturday's game between the Redskins and the Bills conclusively show that spectrum sensing white space devices will cause harmful interference to wireless microphones during live events.