RF Shorts – Feb. 10, 2011


John Croft, writing on Flightglobal.com, says Digital divide buster could sink FAA's NextGen. The article includes this quote from a letter the Air Transport Association (ATA) sent the FCC, "Indeed, because of the ambitious [FAA NextGen] program to shift air traffic management to a satellite-based navigation and communications system, GPS will become even more important over the next decade. For these reasons, we are extremely concerned about spectrum issues and the possibility of inadvertent interference." It also references a Garmin study that showed aviation units such as the GNS430W could detect interference, or jamming, more than 22,000 meters from a simulated LightSquared antenna site and lose positional fix at distances of five nautical miles. The FCC required LightSquared to work with the GPS community to understand the risks, with a final report due by June 15.

TerraStar Networks, owner of TerreStar-1, filed for Chapter 11 bankruptcy protection late last year. Their satellite, billed as the largest communications satellite ever built, is able to provide connectivity to S-band handsets similar in size to conventional smartphones. A group, Buy This Satellite has been formed to raise money to purchase the satellite and use it to connect underserved areas to the Internet. Read more about in Jeff Foust's article Buy this satellite? on TheSpaceReview.com. So far, according to the Buy This Satellite web site, they have raised $44,424, probably not enough to outbid other potential bidders such as LightSquared or Dish Network.

Doug Lung
Contributor

Doug Lung is one of America's foremost authorities on broadcast RF technology. As vice president of Broadcast Technology for NBCUniversal Local, H. Douglas Lung leads NBC and Telemundo-owned stations’ RF and transmission affairs, including microwave, radars, satellite uplinks, and FCC technical filings. Beginning his career in 1976 at KSCI in Los Angeles, Lung has nearly 50 years of experience in broadcast television engineering. Beginning in 1985, he led the engineering department for what was to become the Telemundo network and station group, assisting in the design, construction and installation of the company’s broadcast and cable facilities. Other projects include work on the launch of Hawaii’s first UHF TV station, the rollout and testing of the ATSC mobile-handheld standard, and software development related to the incentive auction TV spectrum repack. A longtime columnist for TV Technology, Doug is also a regular contributor to IEEE Broadcast Technology. He is the recipient of the 2023 NAB Television Engineering Award. He also received a Tech Leadership Award from TV Tech publisher Future plc in 2021 and is a member of the IEEE Broadcast Technology Society and the Society of Broadcast Engineers.