ITU R M 1677:2009
ITU R M 1677:2009 International Morse Code
Table of Contents
ScopeAnnex1-OperationalprovisionsapplyingtoMorseworking
1Morsecodesignals
2Spacingandlengthofthesignals
3Transmissionofsignsforwhichthereisnocorresponding
signalintheMorsecode
4Transmissionofgroupsoffiguresandletters,ofordinal
numbersoroffractions