spot beam


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spot beam

[′spät ‚bēm]
(communications)
A beam generated by a communications satellite antenna of sufficient size that the angular spread of energy in the beam is small, always smaller than the earth's angular beam width as seen from the satellite.

spot beam

A communications satellite signal that transmits to a pinpointed geographic area on earth. Spot beam technology allows different data to be sent to different locations using the same carrier frequencies. For example, local TV programs can be transmitted to multiple counties within a state; however, the beam footprint is naturally circular and cannot correspond to local jurisdictions. See communications satellite.
References in periodicals archive ?
The satellites have steerable spot beams that cover smaller swaths of about 430 miles wide.
Gogo will also have access to HTS capacity on an additional SES-12 HTS satellite, which is also set to launch in 2017, with high-powered spot beam and wide beam coverage over Asia, the Middle East, North Africa and Russia.
The 2Ku antenna and its increased spectral efficiency are compatible with today's Ku satellites and future Ku satellites, including future spot beam satellites.
EUTELSAT 25B/Es'hail 1 has four steerable spot beam antennas and four deployable reflectors along with advanced command and telemetry capabilities.
Automatic beam switching (ABS) technology will ensure seamless transitions as the vessels move from one satellite spot beam to another while providing selective band services within regions.
It will extend ARABSAT's in-orbit capacity at this location for direct-to-home television broadcast and telecommunications services, and will provide broadband services in Ka-band with spot beam coverage.
The high-capacity Ka-band spot beam satellite will provide coverage over North America and Hawaii, enabling new high-speed broadband services for WildBlue in the US, Xplornet in Canada and JetBlue Airways on its domestic US fleet.