ITU G.343:1988
ITU G.343:1988 4 Mhz Systems On Standardized 1.2/4.4 Mm Coaxial Cable Pairs
Table of Contents
1Linefrequencies2Pilotsandadditionalmeasuringfrequencies
2.1Line-regulatingpilots
2.2Frequencycomparisonpilots
2.3Additionalmeasuringfrequencies
3Hypotheticalreferencecircuits
4Noise
5Matchingofthecoaxial-pairimpedanceandrepeater
impedances
6Relativelevelsandinterconnection
6.1Relativelevelatamplifieroutput
6.2Pre-emphasischaracteristic
6.3Interconnectioninafrontiersectionoftwo
systemsinwhichtheelementarycablesections
areofthesamenominallength
6.4Interconnectionofa4MHzanda6MHzsystem
inafrontiersection
6.5Interconnectionatamainstation
7Power-feedingandalarmsystems