Ka-band (26–40 GHz)Ĭommunications satellites for close up high resolutions applications, uplink in either the 27.5 GHz and 31 GHz bands, close-range targeting radars on military aircraft. Meteorological Satellite Frequencies Data Collection System, 18.1 - 18.4 GHz, 402.0-402.1 MHz 402.1-402.4 MHz Telemetry & Ranging, 12.2-12.75.
In Europe, the Ku-band downlink is used from 10.7 GHz to 12.75 GHz for direct broadcast satellite services, such as Astra. Finally, at the lowest end of the satellite transmission range, the C band operates between 3.7 and 4.2 GHz downlink and is ideal for voice and data transmission because its lower. X-band radar frequency sub-bands are used in civil, military and government institutions for weather monitoring, air traffic control, maritime vessel traffic control, defense tracking, and vehicle speed detection for law enforcement. The lower frequency X band, between 7.25 and 7.75 GHz downlink, is a low frequency signal used predominantly by military forces for long-range communications. Used in radar applications including continuous-wave, pulsed, single-polarisation, dual- polarisation, synthetic aperture radar, and phased arrays. What are uplink and downlink The communication going from a satellite to ground is called downlink, and when it is going from ground to a satellite it is called uplink.
SATELLITE DOWNLINK FREQUENCY TV
Commonly used in areas that are subject to tropical rainfall, since it is less susceptible to rain fade than Ku band (the original Telstar satellite had a transponder operating in this band, used to relay the first live transatlantic TV signal in 1962). Primarily used for satellite communications, for full-time satellite TV networks or raw satellite feeds. In May 2009, Inmarsat and Solaris mobile (a joint venture between Eutelsat and Astra) was awarded each a 2×15 MHz portion of the S-band by the European Commission. Weather radar, surface ship radar, and some communications satellites, especially those of NASA for communication with ISS and Space Shuttle. Global Positioning System (GPS) carriers and also satellite mobile phones, such as Iridium Inmarsat providing communications at sea, land, and air WorldSpace satellite radio.
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