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

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

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<strong>CCSDS</strong> RADIO FREQUENCY AND MODULATION SYSTEMS REPORT<strong>Earth</strong> <strong>Stations</strong>REF. FREQ PHASE NOISE:The earth station Frequency and Timing system's referencefrequency phase noise, measured at the named frequencies (5 Mhz /100 Mhz) using a single side band system with a 1 Hz bandwidth(dB Hz) at the following offset frequencies from the carrier(dBc/Hz):1 Hz Offset10 Hz Offset100 Hz Offset1000 Hz OffsetREFERENCE FREQS. AVAIL.MAX. STA.-TO-STA. OFFSETThe set of reference frequencies, derived from the master frequencystandard, which are available from the station's frequency andtiming subsystem for external equipment interfacing (MHz).The maximum frequency offset permitted between two or morestations of an agency's network (Hz).6.1.2.8 TIMING SYSTEMMASTER REFERENCE AGENCYThe name of the agency or bureau responsible for maintaining themaster time reference to which the specified station is synchronized(name).REFERENCE TIMETIME CODE EPOCHTIME CODES AVAILABLEMAX TIME RESOLUTIONTIME TRANSFER METHODMAX. TRANS. ERROR TO REF.MAX. OFFSET FROM REF.The name of the time reference employed in the named station(s)(UTC, other).The reference, or beginning, year for the previously specifiedreference time (yr).The names of those codes, recommended by the <strong>CCSDS</strong>, whichare available to users of, or supplied with data from, the namedstation(s).The highest resolution provided by the previously specified<strong>CCSDS</strong> Time Code(s) (s).The name of the method used to synchronize station's clock tothe master time reference (GPS, LORAN, etc.).The maximum permissible real offset between the station'sclock and the master time reference at the conclusion of thestation clock synchronization process (Ês).The maximum permissible real offset between the station'sclock and the master time reference before re-synchronization ofthe station's clock is initiated (Ês).<strong>CCSDS</strong> 411 G-3 6.1-8 May 1997

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