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Television Transmission and Frequency Allocation

This article explores the intricacies of television transmission and frequency allocation in the US. It breaks down various bands such as VLF, VHF, UHF, and CATV, highlighting significant allocations for AM radio, FM radio, and television. The discussion includes the evolving landscape of media delivery, from traditional broadcast methods to digital formats like HDTV, satellite, and IPTV. Additionally, it examines current allocation ranges for cellular, GPS, WLANs, and broadcasting, reflecting how these frequencies support a diverse array of content delivery, including on-demand services.

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Television Transmission and Frequency Allocation

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  1. Television Transmission and Frequency Allocation

  2. building, vehicle, or other reflector reflected path direct path base station Station

  3. Television Station Bands • VLF • CATV • VHF • UHF

  4. Radio Spectrum – US Frequency Allocations . . . AM Radio TV 2-4 TV 5-6 FM Radio TV 7-13 TV 21-36 TV 38-69 Cell

  5. Some current US radio spectrum allocations . . . Cellular telephone (824-849, 869-894 MHz) 50 MHz PCS (1710-1785, 1805-1880 MHz) 150 MHz GPS (1227, 1575 MHz) 41 MHz FM Radio (88-108 MHz) 20 MHz WLANs (2.400-2.484 GHz) 84 MHz Broadcast TV (54-72, 76-88, 174-216, 470-890 MHz) 492 MHz

  6. Over the air TV will be digital—mix of HDTV and more channels of SDTV • Cable will have lots of content on demand • Satellite will have over the air HD programming • Telcos will be providing IPTV • Broadband delivery of content on demand (NetFlix, iPod) • “mobile TV” on phones or other proprietary wireless data networks.

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