TerreStar announced it has completed in-orbit testing for TerreStar-1, which it claims is "the world's largest, most advanced commercial communications satellite."
One of the unique features of TerreStar-1 is a large 18 meter 2-GHz S-band reflector that allows it to communicate from its location 23,000 miles above the Earth with mobile devices the size of a typical smart phone on the planet's surface.
"The completion of in-orbit testing has verified several new technologies developed by Space Systems/Loral and our key suppliers," said John Celli, president and COO of Space Systems/Loral. "We are pleased to report that all of the new developments meet or exceed performance expectations. In particular, the S-band antenna, which includes an 18-meter reflector developed by Harris Corporation and a complex feed array developed by SS/L, has been verified by measurements of the antenna patterns on the ground. The reflector mesh is correctly aligned to the feed and the surface shape is accurate."
Next to be tested is the Ground Based Beam Forming (GBBF) system. GBBF is capable of generating more than 500 simultaneous spot beams.
"Once the integration with the advanced GBBF system and the all-IP core network is complete, TerreStar, with its channel partners, will be ready to offer substantial benefits to wireless users in Canada through its ubiquitous North American mobile network," said Steve Nichols, EVP of TerreStar Canada.
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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.