Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/White_spaces_(radio)> ?p ?o }
- White_spaces_(radio) abstract "In telecommunications, white spaces refer to frequencies allocated to a broadcasting service but not used locally.National and international bodies assign different frequencies for specific uses, and in most cases license the rights to broadcast over these frequencies. This frequency allocation process creates a bandplan, which for technical reasons assigns white space between used radio bands or channels to avoid interference. In this case, while the frequencies are unused, they have been specifically assigned for a purpose, such as a guard band. Most commonly however, these white spaces exist naturally between used channels, since assigning nearby transmissions to immediately adjacent channels will cause destructive interference to both.In addition to white space assigned for technical reasons, there is also unused radio spectrum which has either never been used, or is becoming free as a result of technical changes. In particular, the switchover to digital television frees up large areas between about 50 MHz and 700 MHz. This is because digital transmissions can be packed into adjacent channels, while analog ones cannot. This means that the band can be "compressed" into fewer channels, while still allowing for more transmissions.In the United States, the abandoned television frequencies are primarily in the upper UHF "700-megahertz" band, covering TV channels 52 to 69 (698 to 806 MHz). U.S. television and its white spaces will continue to exist in UHF frequencies, as well as VHF frequencies for which mobile users and white-space devices require larger antennas. In the rest of the world, the abandoned television channels are VHF, and the resulting large VHF white spaces are being reallocated for the worldwide (except the U.S.) digital radio standard DAB and DAB+, and DMB.".
- White_spaces_(radio) wikiPageExternalLink Main.aspx.
- White_spaces_(radio) wikiPageExternalLink www.carlsonwireless.com.
- White_spaces_(radio) wikiPageExternalLink www.csir.co.za.
- White_spaces_(radio) wikiPageExternalLink www.i2r.a-star.edu.sg.
- White_spaces_(radio) wikiPageExternalLink sf10085.html.
- White_spaces_(radio) wikiPageExternalLink consultation-smse012e.pdf.
- White_spaces_(radio) wikiPageExternalLink www.meraka.org.za.
- White_spaces_(radio) wikiPageExternalLink www.wapa.org.za.
- White_spaces_(radio) wikiPageExternalLink channel.
- White_spaces_(radio) wikiPageExternalLink www.icasa.org.za.
- White_spaces_(radio) wikiPageExternalLink www.whitespaceforus.com.
- White_spaces_(radio) wikiPageID "12352275".
- White_spaces_(radio) wikiPageLength "25239".
- White_spaces_(radio) wikiPageOutDegree "88".
- White_spaces_(radio) wikiPageRevisionID "683187499".
- White_spaces_(radio) wikiPageWikiLink Adaptrum.
- White_spaces_(radio) wikiPageWikiLink Adjacent_channel.
- White_spaces_(radio) wikiPageWikiLink Analog_TV.
- White_spaces_(radio) wikiPageWikiLink Analog_television.
- White_spaces_(radio) wikiPageWikiLink Arcata.
- White_spaces_(radio) wikiPageWikiLink Arcata,_California.
- White_spaces_(radio) wikiPageWikiLink BBC.
- White_spaces_(radio) wikiPageWikiLink BSkyB.
- White_spaces_(radio) wikiPageWikiLink BT_Group.
- White_spaces_(radio) wikiPageWikiLink Ball_park.
- White_spaces_(radio) wikiPageWikiLink Bandplan.
- White_spaces_(radio) wikiPageWikiLink Baseball_park.
- White_spaces_(radio) wikiPageWikiLink Broadband_Internet.
- White_spaces_(radio) wikiPageWikiLink Broadcasting.
- White_spaces_(radio) wikiPageWikiLink Carlson_Wireless.
- White_spaces_(radio) wikiPageWikiLink Category:Broadcasting.
- White_spaces_(radio) wikiPageWikiLink Category:Internet_access.
- White_spaces_(radio) wikiPageWikiLink Category:Metropolitan_area_networks.
- White_spaces_(radio) wikiPageWikiLink Category:Wireless.
- White_spaces_(radio) wikiPageWikiLink Category:Wireless_networking.
- White_spaces_(radio) wikiPageWikiLink Channel_(communications).
- White_spaces_(radio) wikiPageWikiLink DAB+.
- White_spaces_(radio) wikiPageWikiLink DBm.
- White_spaces_(radio) wikiPageWikiLink DTV_conversion.
- White_spaces_(radio) wikiPageWikiLink Database.
- White_spaces_(radio) wikiPageWikiLink Dell.
- White_spaces_(radio) wikiPageWikiLink Digital_Audio_Broadcasting.
- White_spaces_(radio) wikiPageWikiLink Digital_Multimedia_Broadcasting.
- White_spaces_(radio) wikiPageWikiLink Digital_dividend_after_digital_television_transition.
- White_spaces_(radio) wikiPageWikiLink Digital_radio.
- White_spaces_(radio) wikiPageWikiLink Digital_switchover.
- White_spaces_(radio) wikiPageWikiLink Digital_television.
- White_spaces_(radio) wikiPageWikiLink Digital_television_transition.
- White_spaces_(radio) wikiPageWikiLink Digital_television_transition_in_the_United_States.
- White_spaces_(radio) wikiPageWikiLink EarthLink.
- White_spaces_(radio) wikiPageWikiLink Earthlink.
- White_spaces_(radio) wikiPageWikiLink Federal_Communications_Commission.
- White_spaces_(radio) wikiPageWikiLink Free_the_Airwaves.
- White_spaces_(radio) wikiPageWikiLink Frequency_allocation.
- White_spaces_(radio) wikiPageWikiLink GNSS.
- White_spaces_(radio) wikiPageWikiLink Google.
- White_spaces_(radio) wikiPageWikiLink Guard_band.
- White_spaces_(radio) wikiPageWikiLink HP.
- White_spaces_(radio) wikiPageWikiLink Hertz.
- White_spaces_(radio) wikiPageWikiLink Hewlett-Packard.
- White_spaces_(radio) wikiPageWikiLink Humboldt_County,_California.
- White_spaces_(radio) wikiPageWikiLink IEEE_802.11af.
- White_spaces_(radio) wikiPageWikiLink IEEE_802.22.
- White_spaces_(radio) wikiPageWikiLink Intel.
- White_spaces_(radio) wikiPageWikiLink Interference_(communication).
- White_spaces_(radio) wikiPageWikiLink Internet_access.
- White_spaces_(radio) wikiPageWikiLink Internet_connectivity.
- White_spaces_(radio) wikiPageWikiLink John_Kerry.
- White_spaces_(radio) wikiPageWikiLink Megahertz.
- White_spaces_(radio) wikiPageWikiLink Microsoft.
- White_spaces_(radio) wikiPageWikiLink Microsoft_Research.
- White_spaces_(radio) wikiPageWikiLink National_Association_of_Broadcasters.
- White_spaces_(radio) wikiPageWikiLink Neul.
- White_spaces_(radio) wikiPageWikiLink Nokia.
- White_spaces_(radio) wikiPageWikiLink Ohangwena_Region.
- White_spaces_(radio) wikiPageWikiLink Omusati_Region.
- White_spaces_(radio) wikiPageWikiLink Oshana_Region.
- White_spaces_(radio) wikiPageWikiLink Philips.
- White_spaces_(radio) wikiPageWikiLink Professional_sports_league_organization.
- White_spaces_(radio) wikiPageWikiLink Radio_band.
- White_spaces_(radio) wikiPageWikiLink Radio_frequency.
- White_spaces_(radio) wikiPageWikiLink Radio_spectrum.
- White_spaces_(radio) wikiPageWikiLink Samsung_Electro-Mechanics.
- White_spaces_(radio) wikiPageWikiLink Satellite_navigation.
- White_spaces_(radio) wikiPageWikiLink Sky_(United_Kingdom).
- White_spaces_(radio) wikiPageWikiLink Spectrum_auction.
- White_spaces_(radio) wikiPageWikiLink Spectrum_management.
- White_spaces_(radio) wikiPageWikiLink Sports_franchise.
- White_spaces_(radio) wikiPageWikiLink Super_Wi-Fi.
- White_spaces_(radio) wikiPageWikiLink TV-band_device.
- White_spaces_(radio) wikiPageWikiLink TV_Band_Devices.
- White_spaces_(radio) wikiPageWikiLink TV_channel.
- White_spaces_(radio) wikiPageWikiLink Telecommunication.
- White_spaces_(radio) wikiPageWikiLink Telecommunications.
- White_spaces_(radio) wikiPageWikiLink Telemetry.
- White_spaces_(radio) wikiPageWikiLink Television_channel.
- White_spaces_(radio) wikiPageWikiLink Theatrical_producer.
- White_spaces_(radio) wikiPageWikiLink UHF.
- White_spaces_(radio) wikiPageWikiLink Ultra_high_frequency.