PRETS 300 638-1995 Transmission and Multiplexing (TM); Fixed Point-to-Point Radio Link Equipment for the Transmission of Digital Signals and Analogue Video Signal Operating at Frequency Bands with 20 MHz Alternate Channel Spacing
This European Telecommunication Standard (ETS) covers the minimum performance requirements for terrestrial fixed services radio communications equipment@ as given below@ in bands in the frequency ranges 10 GHz and 14 GHz using 20 MHz channel spacing. This ETS is applicable in those countries where the frequency plan in these bands is based on a 20 MHz spacing; it does not prevent the development of future ETSs for equipment operated in these bands using a different channel plan. The parameters specified fall into two categories: a) those required to provide compatibility between channels from different sources of equipment on the same route@ connected either to separate antennas@ or to separate polarizations of the same antenna. This category also includes parameters providing compatibility with the existing radio-relay network; b) parameters defining the transmission quality of the proposed systems. The standardization includes the following specifications: - transmitter and receiver characteristics; - baseband and RF interface characteristics; - diversity system characteristics. As regards Synchronous Digital Hierarchy (SDH) systems@ the Section Overhead (SOH) processing is covered in CCIR Recommendation 750 [8].
PRETS 300 638-1995 history
1996PRETS 300 638-1996 Transmission and Multiplexing (TM); Fixed Point-to-Point Radio Link Equipment for the Transmission of Digital Signals and Analogue Video Signal Operating in Frequency Bands with 20 MHz Alternate Channel Spacing
1995PRETS 300 638-1995 Transmission and Multiplexing (TM); Fixed Point-to-Point Radio Link Equipment for the Transmission of Digital Signals and Analogue Video Signal Operating at Frequency Bands with 20 MHz Alternate Channel Spacing