prSSH EN 301 461 V1.1.1:2000

Fixed Radio Systems; Point-to-point equipment; High capacity fixed radio systems carrying SDH signals (2 x STM-1) in frequency bands with 40 MHz channel spacing and using Co-channel Dual Polarized (CCDP) operation

Scope

he present document specifies the minimum performance parameters for a high capacity digital radio-relay system operating in frequency bands with 40 MHz channel spacing in the 4 GHz, 5 GHz, U6 GHz and 11 GHz bands, by using both polarizations in the co-channel dual polarized (CCDP) mode of operation. The channel capacity shall be 1 x STM-1 on each polarization, that allows the transmission of two STM-1 signals, in the same frequency band. It has to be noted that STM-1 systems can be grouped in order to offer an SDH interface higher than STM-1. The area of application of these digital radio-relay systems is foreseen to be in regional and trunk networks forming part of a SDH-network including optical rings.