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The footprint of a communications satellite is the ground area that its transponders offer coverage, and determines the satellite dish diameter required to receive each transponder's signal. There is usually a different map for each transponder (or group of transponders), as each may be aimed to cover different areas.
Universal Satellites Automatic Location System (USALS), also known (unofficially) as DiSEqC 1.3, Go X or Go to XX is a satellite dish motor protocol that automatically creates a list of available satellite positions in a motorised satellite dish setup. It is used in conjunction with the DiSEqC 1.2 protocol.
A typical value for a consumer type 60 cm satellite dish at 11.75 GHz is 37.50 dB. With lower frequencies, C-band for example, dish designers have a wider choice of materials. The large size of dish required for lower frequencies led to the dishes being constructed from metal mesh on a metal framework.
Automatic Tracking Satellite Dishes are satellite dishes used while a vehicle, boat or ship is in motion. Automatic tracking satellite dishes utilize gyroscopes , GPS position sensors, and uses unique satellite identification data and an integrated DVB decoder to aid in identification of the satellite that it is pointing at.
Some larger satellite trucks weigh over 26,001 pounds (11,794 kg), and therefore require the driver to obtain a Commercial Driver's License (CDL). Satellite trucks over 10,000 pounds (4,536 kg) GVWR are required to stop at weigh stations, undergo annual DOT inspections, and the Truck driver (usually also operates the truck) needs to pass a physical examination mandated by the DOT, maintain an ...
In 2007, most of the services at the 121° location were moved to the Anik F3 satellite at the 118.75° location. Existing Super Dish subscribers were retrofitted with a "repoint kit" to receive most of the same services via the Anik F3 satellite, also in the medium-power FSS band.
In June 2003, the satellite was relocated back to 101.2° W, as the satellite was incapable of providing service to Hawaii. [22] In July 2005, the satellite was relocated to 72.5° W, as the former satellite at that position (DirecTV 5) had moved to 110° W to replace DirecTV 6, which was approaching the end of its fuel life. [ 21 ]
An example of a system utilizing both a BUC and an LNB is a VSAT system, used for bidirectional Internet access via satellite. The block upconverter is a block shaped device assembled with the LNB in association with an OMT, orthogonal mode transducer to the feed-horn that faces the reflector parabolic dish. This is opposed to other types of ...