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RF Shorts: Other Items of Interest - Nov. 12 2009

  • • The terrestrial wireless industry isn't the only one seeking more spectrum in the FCC's national broadband proceeding. In BusinessWeek's article Satellite Operators Call for More Spectrum, Qualcomm and SkyTerra discussed a way to make 100 MHz of spectrum available for use by satellites and their associated ancillary terrestrial component (ATC) for mobile broadband. Broadcasters will be relieved the plan does not appear to take away broadcast spectrum. The article includes an excellent overview of the mobile satellite service and companies SkyTerra and TerreStar.
  • • Easy to use RF propagation tools are always appreciated. describes a web site that’s Simplifying point-to-point wireless planning. The Web site provides tools for designing fixed links in the 2.4, 4.5, 4.8, 4.9, 5.1, 5.2, 5.3, 5.4 and 5.8 GHz bands. Results can be displayed in a Google Earth map view. Registration is required at the Alphimax site to access the tools.
  • • The Association for Maximum Service Television (MSTV) and NAB have submitted reply comments [PDF] in FCC dockets on a national broadband plan and fostering innovation and investment in the wireless communications market. The comments express concern about interference from TV band devices (aka "white space devices") to existing TV receivers. The MSTV and NAB summary states, "Broadcasters use spectrum to deliver a wide range of services that benefit American consumers, from free, high-definition video programming and multicast services to mobile broadcasting and other ancillary and supplemental services. Limiting costs imposed on viewers will be a key aspect of any framework that is designed to promote innovation and protect consumers. We look forward to working with the Commission as it moves forward in reassessing its spectrum policies."

Doug Lung is one of America's foremost authorities on broadcast RF technology. He has been with NBC since 1985 and is currently vice president of broadcast technology for NBC/Telemundo stations.