ITU R V 574:2000
ITU R V 574:2000 Use Of The Decibel And The Neper In Telecommunications
Table of Contents
ANNEX1-Useofthedecibelandtheneper1Definitionofthedecibel
2Definitionoftheneper
3Useofthedecibelandneper
4RulesfortheuseofthesymbolswheredBisincluded
4.1ThesymboldBwithoutadditionalindication
4.2ThesymboldBfollowedbyadditionalinformationwithin
parenthesis
4.3ThesymboldBfollowedbyadditionalinformationwithout
parenthesis
5Lossandgain
5.1Transmissionloss
5.2Antennagain
6Levels
6.1Absolutepowerlevel
6.2Relativepowerlevelandrelatedconcepts
6.3Powerdensity
6.4Absolutepowerdensitylevel
6.5Absolutevoltagelevel
6.6Audiofrequencies
6.7Absolutelevelofanelectromagneticfield
6.8Soundpressurelevel
7Ratiosexpressingtransmissionquality
7.1Signal-to-noiseratio
7.2Protectionratio
7.3Carriertospectralnoisedensityratio(C/N0)
7.4Energytospectralnoisedensityratio
7.5Figureofmerit(M)
8Specialnotations
APPENDIX1-Notationforexpressingthereferenceofalevel