![]() ![]() Presently, there are two ViaSat (a satellite wireless service provider) Ka-Band satellites, one covering the US, and one covering Canada and parts of Europe. K still stands for Kurz, and a stands for above since this is in the upper region of the native frequency band which is at 20–36 GHz. The last system is the "Ka-Band" Service. If you've seen aircraft with a pod on the top of its fuselage, you may not know that under it sits a satellite antenna, which rotates and can adjust itself to the nearest satellite. Since this system has to send signals to a satellite first, there could also be delays on signals and could get slower as more aircrafts use this service. This can deliver about 50 Mbps with this system, but you still have to consider that there will be more than a hundred passengers on the aircraft. The signal is then decoded and then transferred to the router. This system works by a ground station sending signals to a satellite first, and then reflect off the satellite and send the signals to the aircraft. K, short for Kurz (meaning short in German) and u for under the original NATO/K-band frequency range. The next system is the "Ku-Band" Service, which was formerly used by the military. With this system, a passenger can receive at least 3 Mbps and one of the highest currently is 9.8 Mbps by gogo wifi. It requires two antennas that are installed on the belly of an aircraft so that it can pick up signals from the ground-based cell towers. The first system is the ATG system, which stands for Air-To-Ground transmission. There must also be a receiving and transmitting antenna on the aircraft and an onboard server and a Wi-Fi router. First off, to have Inflight wifi, there needs to be a ground-based internet server, a transmitting dish, or a satellite dish. There are three different ways that aircraft can give internet access to its passengers, which will most likely be on at around 38,000 feet.
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