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
1996PRETS 300 638-1996 Übertragung und Multiplexing (TM); Feste Punkt-zu-Punkt-Funkverbindungsausrüstung für die Übertragung digitaler Signale und analoger Videosignale, die in Frequenzbändern mit 20-MHz-Wechselkanalabstand betrieben werden
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