ETSI 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
1996ETSI ETS 300 638-1996 Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Fixed Point-to-Point Radio Link Equipment for the Transmission of Digital Signals and Analogue Video Signal Operating in the Frequency Bands 10 GHz and 14 GHz with 20 MHz Alternate Ch
1995ETSI 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