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ITU-T R.52 Standardization of international texts for the measurement of the margin of start-stop equipment
ITU-T R.59 Interface requirements for 50-baud start-stop telegraph transmission in the maritime mobile satellite service
ITU-T U.44 Multi-address calls in real time for broadcast purposes in the international telex service
ITU-T Q.9 Vocabulary of switching and signalling terms
ITU-T G.761 General characteristics of a 60-channel transcoder equipment
ITU-T E.210 (11/88) Ship station identification for VHF/UHF and maritime mobile-satellite services
ITU-T G.622 Characteristics of 1.2/4.4 mm coaxial cable pairs
ITU-T Q.112 Signal levels and signal receiver sensitivity
ITU-T J.19 A conventional test signal simulating sound-programme signals for measuring interferences in other channels
ITU-T R.71 Organization of the maintenance of international telegraph circuits
ITU-T U.140 Definitions of essential technical terms relating to telegraph switching and signalling