Report: RF&Mod Systems-Part 1: Earth Stations - CCSDS

CCSDS RADIO FREQUENCY AND MODULATION SYSTEMS REPORTEarth Stations6.1 TERMINOLOGYThis section contains definitions of the specific terms used in the 5 data sheets that are used to characterisean Earth station.6.1.1 GENERAL INFORMATIONSTATION DESIGNATIONLOCATION, COUNTRYLOCATION, CITYDIAMETER AND No. of ANTENNASThat name, given by the owner-agency, which identifies thespecific earth station (station ID).The country where the named earth station is located (name).The nearest city of reasonable size to the named earth station(name).The earth station antenna's diameter, expressed in meters,followed by the number of such antennas at the named location(m).6.1.2 ELECTRICAL CHARACTERISTICSEARTH-TO-SPACE6.1.2.1 TRANSMIT SECTIONFREQUENCIESFREQUENCY RESOLUTIONRF FREQ STABILITYEIRP RANGE 1EIRP RANGE 2POLARIZATIONThe range of frequencies over which the named station cantransmit a signal to a spacecraft at the stated EIRP (MHz).The smallest increment with which the transmitted RF carrier'sfrequency can be adjusted in the specified band (Hz).The maximum change in RF carrier frequency, expressed as afraction of the nominal RF carrier frequency, that the earth-tospacelink will vary due to system instabilities over a namedperiod (e.g., 1 sec or 1 min.) (parts per million).The range of equivalent isotopically radiated powers overwhich the main earth-to-space link can be operated while maintaining the other characteristics shown in this table. Thischaracteristic is the product of the power supplied to theantenna and the antenna's gain (dBW).Same as the previous entry except that the specification pertainsto an auxiliary, or an emergency transmitter (dBW).The type and direction in which the electric field of the earth-tospacelink can be polarized (use IEEE definitions).CCSDS 411 G-3 6.1-1 May 1997