equipment is priced from $15,000 and up.
Including the new order Thrane & Thrane has delivered 14 of the 22 Inmarsat-C land earth stations
currently in operation.
Communications between two TDRSs and between LEO satellites, data relay geosynchronous earth orbit (GEO) satellites and an earth station
are shown in Figure 1.
Such a data base is typically constructed so that a computer can detect, by geodetic coordinates, which other systems are within the potential-interference radius of the planned site and also share the frequency the earth station
intends to use.
"We need to involve the major interest groups--the broadcasters, the transportable earth station
operators, the frequency-coordination companies, the telephone carriers and the satellite owners."
A commercial-quality earth station
costs anywhere from $16,000 to $25,000.
Its earth station
site, located on a 2.3-acre plot about 10 miles north of the Chicago Loop, presently has three 10-meter antennas.
The Tanum satellite earth station
will be closed down gradually during 2002.
In this environment it was reasonable to give Comsat a dominant role in any earth station
The two parties have signed a Land Earth Station
Operators agreement, under which a new land earth station
will be commissioned at Lakhdaria about 70km east of the capital Algiers.
The critical areas and design considerations involved in the installation of a transmit/receive earth station
must be determined and solutions identified prior to the actual installation.