INDEX 



13 



Noise 



electron beam 831-78 



electron tube, traveling-wave 831 



error correction codes 1341-88 



Newfoundland-Nova Scotia Link 229, 

 241-42 



transatlantic telephone cable 

 North Atlantic link 39-42, 62-63 



radio transmission 623-25 

 Noise Spectrum of Electron Beam in 

 Longitudinal Magnetic Field: The 

 Groicing Noise Phenomenon; The 

 UHF Noise Spectrum (W. W. Rigrod) 

 831-78 

 Non-Binary Error Correction Codes (W. 



Ulrich) 1341-88 

 Nonlinear Attenuation See Attenua- 

 tion 

 Normal Mode Bends for Circular Electric 



Waves (H.-G. Unger) 1292-1307 

 North America map 294, 296 

 North Atlantic Link 



bandwidth 34-35 



cable current 



regulation 143-45; simplified sche- 

 matic 143-45 



channels 38 



description 29-31 



design 29-68 



electron tubes 163-78 



equalization 



shore 46-49; block schematics 



inaccessibility 34 



integrity 33 



maintenance 55-57 



misalignment 42—46 



modulation 63 



noise 39-42, 62-63 



performance 59-65 



power feed, see Power Supply 



repeaters, see Repeater 



schematic diagram 30 



signal-to-noise design 35 



spares 65-66 



terminals 52-55 



testing 55-59 

 North Atlantic Ocean 



basins 1064-65 



bottom 1072-74 



temperature 1077-86 



continental shelf 1063-64 



earthquake epicenters map 1087 



telegraph cables map 294 



topography 1061-70; illus 

 North Sea 3 

 Northern Electric Company, Ltd. 



57, 244 

 Norton, E. L. 736 

 Nova Scotia map 294, 296 

 Noyce, R. N. 1004 



Number 4B Transistor See Transistor 

 Number 5B Transistor See Transistor 

 Number 6P10 Electron Gube See 



Electron Tube 

 Number 6P12 Tube See Electron Tube 

 Number 7F Test Set See Test Set 

 Number 175HQ Tube See Electron 



Tube 

 Number SP61 Tube See Electron Tube 



175HQ Tube See Electron Tube 

 Oban, Scotland 2, 9, 29, 49, 57, 140, 

 145, 147, 150, 164-65, 217, 219, 221, 

 246, 248, 293, 301, 317-18, 323; 7nap 

 8, 218, 300 

 Ocean Bottom 

 catastrophic changes 1086-93 

 knowledge, present 1070-74 

 sediment 1071 

 study 1048 



evaluation 1056-1057 

 methods 1065-70; illus 

 presentation 1057-61 

 topography 1049-65 

 turbidity currents 1089-93 

 Ocean Cable See Submarine Cable 

 Oceanographic Information for Engineer- 

 ing Submarine Cable Systems (C. H. 

 Elmendorf, B. C. Heezen) 1047-93 

 Oceanography, defined 1047-48 

 Office See Central office 

 O'Neil, H. T. 1033 

 Operating Companies 



carrier, PI 350 

 Ordnance Survey of Great Britain 

 244 



