On 2016/11/17 21:21, Gord Slater wrote: > forgive the curt reply - rather remote here right now and squirting a > Thuraya bird with crocodile clips on a 'Mog
Talking of birds, interesting FCC application in this week: http://licensing.fcc.gov/cgi-bin/ws.exe/prod/ib/forms/reports/swr031b.hts?q_set=V_SITE_ANTENNA_FREQ.file_numberC/File+Number/%3D/SATLOA2016111500118&prepare=&column=V_SITE_ANTENNA_FREQ.file_numberC/File+Number&utm_content=bufferda647&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer | The SpaceX non-geostationary orbit (“NGSO”) satellite system (the | “SpaceX System”) consists of a constellation of 4,425 satellites (plus | in-orbit spares)1 operating in 83 orbital planes (at altitudes ranging | from 1,110 km to 1,325 km), as well as associated ground control | facilities, gateway earth stations and end user earth stations. The | overall constellation will be configured as follows: [..] | The system is designed to provide a wide range of broadband and | communications services for residential, commercial, institutional, | governmental and professional users worldwide. Advanced phased array | beam-forming and digital processing technologies within the satellite | payload give the system the ability to make highly efficient use of | Ku- and Ka-band spectrum resources and the flexibility to share that | spectrum with other licensed users. User terminals operating with the | SpaceX System will use similar phased array technologies to allow | for highly directive, steered antenna beams that track the system’s | low-Earth orbit satellites. Gateway earth stations also apply advanced | phased array technologies to generate high-gain steered beams to | communicate with multiple NGSO satellites from a single gateway site. | The system will also employ optical inter-satellite links for seamless | network management and continuity of service, which will also aid in | complying with emissions constraints designed to facilitate spectrum | sharing with other systems. Shades of the old Teledesic plans with the different layers and optical inter-sat links, but 5x as many sats and a little further out. More in PDF: http://licensing.fcc.gov/myibfs/download.do?attachment_key=1158350
