Overview Quadrature Amplitude Modulation (QAM) is the combination and modulation of two signals which have a 90º phase shift from one another. It is the 90º phase shift which causes the two signals t ...

Overview Hodoyoshi-2 or Rapid International Scientific Experiment Satellite (RISESAT) is a 50kg experimental earth observing and research satellite launched by JAXA. One of its payloads is the Very ...

Overview The command and data-handling system acts as the brain for the satellite, controlling all the satellite's functions and operations. Courtesy of NASA, some examples of what the system controls ...

Overview Quality of Service (QoS) fairness is a technique which improves the fairness of multiple virtual path flows by classifying each path into one of 16 different classes. These 16 different ...

Overview Transportable Optical Ground Station (TOGS). See Optical Ground Station (OGS). Near real-time data downlinks from aircrafts, satellites, and high altitude platforms via high-speed laser ...

Overview Surrey Satellite Technology Ltd. (SSTL) is a spin-off company of the University of Surrey, now fully owned by Airbus Defence and Space, that builds and operates small satellites. Its ...

Overview Free Space Optics provides speeds comparable to those of optical fiber connections with the flexibility and practicality of being part of a wireless network providing bandwidth speeds ...

Overview Spectrum availabilty is a line-of-sight technology approach uses lasers to provide optical bandwidth connections. It’s capable of sending up to 2.5 Gbps of data, voice, and video c ...

Overview Spatial diversity is any one of several wireless diversity schemes that uses two or more antennas to improve the quality and reliability of a wireless link. Often, especially in urban and ...

Overview Headquartered in San Diego, CA, Space Micro Inc is an engineering-driven company that develops and supplies space-qualified, affordable, high-performance communications, electro-optic and ...