Pdf earth station antennas for multiple satellite access. Vsat antenna,tvro,flyaway antenna manufacturer and. Its most familiar component is the earth station antenna, which can be tens of meters in diameter or a small portable dish. An earth station s tracking system is required to perform some of the functions such as isatellite acquisition iiautomatic tracking iiimanual tracking ivprogram tracking. This antenna system is used worldwide in broadcast applications and high density data, voice and communications networks. Nelson the earth station is the link between the terrestrial data sources and the remote satellite resource. Department of commerce rebecca blank, acting secretary.
It was originally built in 1968 to support the apollo 11 moon landing. Registration for service activation of aircraft earth. Evolution of satellite communication earth stations teleports and hubs earth station design philosophy for performance and operational effectiveness engineering principles propagation considerations the isotropic source, line of sight, antenna principles atmospheric effects. In the same way as for the lessive 2 antenna in the intelsat system, lessive 3 is characte. These two parts combined together radiates or receives electromagnetic waves. Intelsat earth station standards iess document iess207 rev. In these recent years we had sold a lot of vsat antennas and big earth station antennas, such as 2. Intelsat earth station standards iess document iess207.
A satellite earth station antenna an effective interface between the uplink equipment and free space must be directional to beam an rf signal to the satellite requires a clear line of sight between the antenna and the satellite. Electronic data file format for earth station antenna patterns. Measure the vertical angle at earth station antenna from ground to satellite as shown in. The ssp is the point on the earth where a straight line drawn from the earth s center to a satellite position would pass through the surface of the earth. Registration for service activation of aircraft earth station aes psa use only code. In case of dispute, the reference shall be the printing on etsi printers of the pdf version kept on a specific. A ground station, earth station, or earth terminal is a terrestrial radio station designed for extraplanetary telecommunication with spacecraft constituting part of the ground segment of the spacecraft system, or reception of radio waves from astronomical radio sources. Computing fss earth station antenna gain in the direction.
Programme steering uses prepared data describing the path of the satellite, seen from the earth station as a function of time. In the esims nprm, the commission sought comment on combining the core. Since the feed system obeys reciprocity theorem, the earth station antennas are suitable for both transmitting and receiving electromagnetic waves. The relative power difference can be as much 1,000 times or more 30 db, so it is important. This manual provides a convenient reference for authorized operatorservice personnel requiring technical information on.
Method for statistical processing of earthstation antenna. Antesky had grown quickly since it began to export antenna to the worldwide in 2008 and has designed and manufactured a wide range of equipment for satellite earth stations worldwide. Tracking is essential when the satellite drift, as seen by an earth station antenna is a significant fraction of an earth station s antenna beam width. Earth station coordination page 2 interference paths whether introducing a new earth station or fs system, the various interference paths need to be considered, as described in this section. Corrugated conical feed horns ensure excellent antenna gain and sidelobe performance. This electronic version pdf was scanned by the international telecommunication union. The static characterization of earth stations is a tradeoff between a thorough and comprehensive type approval, which guarantees the repeatability of antenna type performanceapproved, and individual earth station testing. Earth station antenna earth station antennas 11 meters. Federal communications commission fcc 188 before the. We draw heavily from the fields of radioastronomy the first dish antennas were actually radiotelescopes, radar, and terrestrial microwave. Earth station antenna basic function is that rf signal from the transmitter becomes electromagnetic wave which orient point to the satellite and radiate, while the antenna will transfer the weak energy of electromagnetic wave from satellite to highfrequency signals efficiently and sent to receiving equipment.
The mars antenna must be no larger than 3 m in diameter. Governments decision to merge various projects which included a satellite. High gain is needed to receive the weak signals from the satellite, or to transmit strong signals to the satellite. This infor mation is fed to the antenna positioning servo system which points the antenna in the appropriate direction. Rf performance characterization was performed on one antenna unit at. It provides the list of mandatory data required as of september 1st, 2018. The paper will survey recent advances in ground station antennas for mobile terminals. Satellite communication block diagram, earth station. Distributed array antenna technique for satellite communications. Earth station industry leading satellite earth station antennas from gd satcom, asc signal and viasat in popular sizes like 3. Eutelsat earth stations registration documentation. Earth station antennas are at the earth end of satellite links. Changing the earthstation categorization in this definition to fss and mss better reflects.
An earth station s tracking system is required to perform some of the functions such as isatellite acquisition iiautomatic. Twentyfourth report by the international telecommunication union. Specify effective aperture of mars and earth antennas and transmitter power total over entire bandwidth at each end. Esva tests are a very costefficient means to test an earth station and ensure that the antenna manufacturer specifications are being met. The communications architecture consists of satellites and ground stations interconnected. Under this option, there are, as indicated, two ways to show compliance. Elevation angle is the vertical angle formed between the direction of travel of an electromagnetic wave radiated from an earth station antenna pointing directly toward a satellite and the horizontal plane. One alternative is to demonstrate that the earth station antenna gain pattern comports with the offaxis gain limits in 25. Manager application support and training iadpistp mail stop 20b intelsat 3400 international drive, nw washington, dc 200083098 telephone. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext.
Earth station antenna system introduction earth station. Ground segment and earth station technical aspects. Antenna description form xls earth station performance requirements pdf earth station verification procedures pdf verifications tests pdf this document explains the somap goals and objectives and the need for commsonthemove antenna system performance data. Reference radiation pattern of earth station antennas in the fixedsatellite service for use in coordination and interference assessment in the frequency range from 2 to 31 ghz recommendation s. Guidance for general purpose earth stations transmitting. The majority of vsat antennas range from 75 cm to 1. Since it is expensive and complicated to generate an equally high power in the satellite, the output power from the satellite is generally much smaller. The autopointing characterization of earth stations is applied to systems. Pdf antennas used as ground stations continue to attract wide interest as applications become more demanding than in the past. The jamesburg earth station is located in the rural cachagua area of carmel valley, california, about 26 miles 42 km southeast of monterey. The scope of this manual is intended to provide station personnel with the base installation, operation, and maintenance requirements necessary for a 4.
Antenna models for electromagnetic compatibility analyses. Vsats provide the vital communication link required to set up a. W hz1 is to be delivered to the earth receiver and 1017 w hz1 to the mars receiver. Pdf ground station antennas some recent developments. The major parts of earth station antenna are feed system and antenna reflector. The counterpart to the earth station is the satellite in orbit, which is the space station. The satellite communication ground segment and earth station handbook. Due to this, the receiving earth stations have to use larger receiving. The antenna consists of a 9meter shaped reflector, a shaped subreflector, and a linear or circular. Since joining ntt access network service systems laboratories in 2009, he has been engaged in research on signal processing of the satellite earth station.