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FIXED RADIO SYSTEMS; POINT-TO-POINT EQUIPMENT; HIGH CAPACITY DIGITAL RADIO SYSTEMS CARRYING STM-4 IN TWO 40 MHZ CHANNELS OR 2 X STM-1 IN A 40 MHZ CHANNEL WITH ALTERNATE CHANNEL ARRANGEMENT
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Available format(s): Hardcopy, PDF
Language(s): English
Published date:
Publisher: European Telecommunications Standards Institute
Intellectual Property Rights Foreword 1 Scope 2 References 3 Symbols and abbreviations 3.1 Symbols 3.2 Abbreviations 4 Network and system considerations 5 General characteristics 5.1 Baseband interface 5.2 Frequency bands and channel arrangements 5.3 Modes of operation 5.4 Environmental conditions 5.5 Power supply 5.6 Telecommunications Management Network (TMN) interface 5.7 System block diagram 5.8 Antenna system 6 Transmitter characteristics 6.1 Output power 6.2 Automatic Transmit Power Control (ATPC) 6.3 RF spectrum mask 6.4 Discrete CW lines exceeding the spectrum mask limit 6.5 Spurious emissions 6.6 Radio frequency tolerance 6.7 Return loss 7 Receiver characteristics 7.1 Receiver image rejection 7.2 Spurious emissions 7.3 Input level range 7.4 Return loss 8 System characteristics without diversity 8.1 Equipment background BER 8.2 BER as a function of receiver input level 8.3 Interference sensitivity 8.4 Distortion sensitivity 9 System characteristics with diversity 9.1 Space/angle diversity 9.2 Frequency diversity Annex A (informative): Additional information A.1 ATPC A.2 Differential delay compensation range Annex B (informative): Compatibility B.1 Compatibility with analogue channels on the same route B.2 Compatibility with 16 QAM systems on the same route Annex C (informative): Bibliography History
This standard specifies parameters for digital radio-relay systems with Transport Module-level 4, (1 x STM-4), interface, and in addition, optional 140 Mbit/s PDH interfaces.
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