June 2015
Promoting growth at geostationary orbit with a one-stop-shop
...of people operating on the lower frequencies, C band, KU band, and now KA band. When that gets congested people look into moving...up into the higher frequencies. Now there is highfrequency QV band. Broadband was a relatively new market when we started ...
August 2017
Big science from small spacecraft
... a flyby of Mars and relay UHF telemetry received from the InSight lander directly back to Earth using an X-band communications link. A launch window for energy-efficient trajectories to Mars opens up at intervals of about 26 months and, in recent...
October 2017
Tracking air pollution and monitoring climate change
... orbit, made available to end-users in near-real time, i.e. within three hours of acquisition, thanks to the on-board X-Band Downlink Assembly and a ground system that includes two stations in Svalbard, Norway, and Inuvik, Canada. All...
March 2019
International collaboration spawns scalable CubeSat EO payloads
... to integrate an agile ADCS system, high performance S-band downlink and a more robust avionics architecture for a longer...lifetime. The use of a high-speed payload datalink and S-band downlink allow the user to receive more image data on ground...
January 2020
Satellite-based IoT - the race is on
...GEO and LEO satellite operators share the same Ku-/Ka-band frequency band. With frequency sharing, optimising the use of ...spectrum, LEO satellites crossing the equator have to change bands to avoid interfering with the GEO satellite. Once they...
October 2023
Remote sensing by satellite - People’s Republic of China
...satellite system). Tianhui 2 satellites are believed to operate in the X-band and have a resolution of 3 m. The first group of two... satellite. The satellite (2,700 kg) was equipped with an L-band SAR system with two working modes with 5 m and 20...
