ETSI EN 300 430:1999 Fixed Radio Systems Point-To-Point Equipment Parameters for Radio Systems for the Transmission of STM-1 Digital Signals Operating in the 18 GHz Frequency Band with Channel Spacing of 55 Mhz and 27@5 MHz (V1.1.2)
The present document specifies parameters for high capacity STM-1 digital radio-relay systems designed to operate in the 17@7 GHz to 19@7 GHz band. The channel spacing between adjacent co-polar channels shall be 55 MHz or 27@5 MHz. Operation in the Adjacent Channel Co-Polarization (ACCP) mode for class 4 systems and class 5 systems as defined below with orthogonal polarizations or in the alternated cross-polar mode is foreseen. Additionally for class 4 systems@ operation in the Co-Channel Dual Polarized (CCDP) mode with orthogonal polarization is also foreseen. The present document covers both single and multi-channel systems. The present document specifies the minimum performance parameters for terrestrial fixed service radio communications equipment operating in the frequency range 17@7 GHz to 19@7 GHz and contains a revision from the previous version@ in the area of: - categorization of previously considered equipments into a new spectrum efficiency class 4; - introduction of unique system type codes for regulatory reference to the various system types detailed in the present document@ refer to new annex C and related categories of equipment classes of spectral efficiency; - new spectrum efficiency class 5 for STM-1 capacity for 27@5 MHz Adjacent Channel Alternate-Polarization (ACAP as class 5a) and Adjacent Channel Co-Polarization (ACCP as class 5b). - technical specifications relevant to the EMC Directive@ detailed in annex B. The applications of these digital radio-relay systems are anticipated to be in the regional and access networks@ at data rates of Synchronous Transport Module@ level 1 (STM-1). The parameters to be specified fall into two categories: a) those that are required to provide compatibility between channels from different sources of equipment on the same route connected either to: - separate antennas; or - separate polarizations of the same antenna; or - one polarization of one antenna at a frequency separation of 110 MHz or more@ enabling@ in addition for class 4 equipment only@ interworking of different manufacturers equipment at the same Radio Frequency (RF) branching; - this category also includes parameters providing compatibility with the existing radio-relay network. b) parameters defining the transmission quality of the proposed system. The standardization deals with RF and baseband characteristics. Antenna/feeder system requirements are covered in EN 300 833 [33]. Two possible baseband interfaces for SDH systems have to be considered: one for STM-1 and another for 140 Mbit/s signals. The present document does not contain aspects related to test procedures and test conditions@ however they are to be found in EN 301 126-1 [19]. As the maximum transmission rate in a given bandwidth depends on systems spectral efficiency@ different classes are defined: - class 4: equipment spectral efficiency based on typically 16 or 32-states modulation scheme (e.g. 16-QAM@ 32-QAM@ or equivalent); - class 5: equipment spectral efficiency based on typically 64 or 128-states modulation scheme (e.g. 64-QAM@ 128-QAM@ or equivalent). The above classes are indicative only and do not imply any constraint to the actual modulation format@ provided that all the requirements in the present document are met. Safety aspects will not be considered in the present document. However compliance to EN 60950 [28] will be required to comply with Directive 1999/5/EC [29] (RTTE). Technical background for most of the parameters and requirements referred in the present document may be found in TR 101 036-1 [20].
ETSI EN 300 430:1999 history
2002ETSI EN 300 430:2002 Fixed Radio Systems; Point-To-Point Equipment; Parameters for Radio Systems for the Transmission of STM-1 Digital Signals Operating in the 18 GHz Frequency Band with Channel Spacing of 55 Mhz and 27@5 MHz (V1.4.1)
2001ETSI EN 300 430:2001 Fixed Radio Systems; Point-To-Point Equipment; Parameters for Radio Systems for the Transmission of STM-1 Digital Signals Operating in the 18 GHz Frequency Band with Channel Spacing of 55 Mhz and 27@5 MHz (V1.3.1)
2000ETSI EN 300 430:2000 Fixed Radio Systems; Point-To-Point Equipment; Parameters for Radio Systems for the Transmission of STM-1 Digital Signals Operating in the 18 GHz Frequency Band with Channel Spacing of 55 Mhz and 27@5 MHz (V1.3.1)
1999ETSI EN 300 430:1999 Fixed Radio Systems Point-To-Point Equipment Parameters for Radio Systems for the Transmission of STM-1 Digital Signals Operating in the 18 GHz Frequency Band with Channel Spacing of 55 Mhz and 27@5 MHz (V1.1.2)
1998ETSI EN 300 430:1998 Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); High Capacity DRRS Carrying 1 x Synchronous Transport Module-1 (1x STM-1) Signals Operating in the 18 GHz Frequency Band with Channel Spacing of 55 MHz (V1.1.2)