ITU G.333:1988
ITU G.333:1988 60 Mhz Systems On Standardized 2.6/9.5 Mm Coaxial Cable Pairs
Table of Contents
1Linefrequencies1.1Plan1-Line-frequencyallocationandmodulation
stagesfor60-MHzsystems(Figure1/G.333)
1.2Plan2-Line-frequencyallocationandmodulation
stagesfor60-MHzsystems(Figure2/G.333)
2Pilotsandadditionalmeasuringfrequencies
2.1Line-regulatingpilots
2.2Frequencycomparisonpilots
2.3Additionalmeasuringfrequencies
2.4Bandreservedformonitoringandfault-tracing
signals
3Hypotheticalreferencecircuit
3.1Generalconsiderations
3.2Modulation
3.3Directthrough-connectionatlinefrequencies
4Circuitnoise
5Matchingofrepeaterimpedancesandlineimpedance
6Interconnection
7Power-feedingandalarmsystems
7.1Powerfeedingacrossafrontier
7.2Remotepower-feedingsystems
7.3Supervisionandalarmsinafrontiersection
8Useof60-MHzsystemsfortelevisiontransmission
8.1Generalremarks
8.2Circuitnoise
8.3Matchingofrepeaterimpedancesandlineimpedance
8.4Number,natureandpositionoflinetelevision
channels
8.5Pilotsandadditionalmeasuringfrequencies
ANNEXA-Modulationmethodsfortelevision
transmissiononthe60-MHzsystem
References