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IndoStar-1 was the world's first commercial communications satellite to use S-band frequencies for broadcast, which efficiently penetrate the atmosphere and provide high-quality transmissions to small-diameter 80 cm antennas in regions that experience heavy rainfall such as Indonesia. A similar Ku- or C-band reception performance requires ...
The Unified S-band (USB) system is a tracking and communication system developed for the Apollo program by NASA and the Jet Propulsion Laboratory (JPL). It operated in the S band portion of the microwave spectrum, unifying voice communications, television , telemetry , command , tracking and ranging into a single system to save size and weight ...
Most commercial voice and some data mobile satellite services are provided by systems operating in the L-band by Iridium, Inmarsat, Globalstar and Thuraya.The L-band spectrum allocated for MSS is between 1.5 and 2.5 GHz, with the upper portion often referred to as the S-band.
The communications systems of the TDRSS satellites were designed to support multiple missions at the same time. Each satellite has S band, K u band (1st Gen only), and K a band (2nd gen only) electronic communication systems hardware that operate at different carrier frequencies and also support various data-rates. [11]
Radio astronomy, satellite broadcasting, communication satellites, weather satellites, ... S band: 2.60 to 3.95 GHz E band: 3.30 to 4.90 GHz
But the boy’s death haunts him, mired in the swamp of moral confusion and contradiction so familiar to returning veterans of the wars in Iraq and Afghanistan. It is what experts are coming to identify as a moral injury: the pain that results from damage to a person’s moral foundation. In contrast to Post-Traumatic Stress Disorder, which ...
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