Telecommunication Journal, 57. sējums,433-864. lapaInternational Telecommunication Union., 1990 |
No grāmatas satura
1.–3. rezultāts no 80.
468. lappuse
... line was fitted with lightning con- ductors similar to those on telegraph lines but with prongs 50 cm long . The two - line transmission wires are supported on 130 poles by insulators fitted symmetrically on each side at the top of the ...
... line was fitted with lightning con- ductors similar to those on telegraph lines but with prongs 50 cm long . The two - line transmission wires are supported on 130 poles by insulators fitted symmetrically on each side at the top of the ...
532. lappuse
... lines on which 41 Morse and 27 Hughes machines have been placed in service . The first of the three main wires feeds 36 34 - volt lines , the second 12 40 - volt lines and the third six 60 - volt lines , plus one 80 - volt line . The ...
... lines on which 41 Morse and 27 Hughes machines have been placed in service . The first of the three main wires feeds 36 34 - volt lines , the second 12 40 - volt lines and the third six 60 - volt lines , plus one 80 - volt line . The ...
683. lappuse
... lines represent a very high proportion of inter- national telecommunication lines . Table 1 contains data on transoceanic fibre - optic lines [ 4 , 5 , 10-14 ] which are either in service already or due to be put into service in the ...
... lines represent a very high proportion of inter- national telecommunication lines . Table 1 contains data on transoceanic fibre - optic lines [ 4 , 5 , 10-14 ] which are either in service already or due to be put into service in the ...
Citi izdevumi - Skatīt visu
Bieži izmantoti vārdi un frāzes
Administrative Africa Alcatel Anritsu antenna applications British Telecom broadcasting cable CCIR CCITT CeBIT channels circuits coding Conference costs countries December E C URS editions in F electronics equipment European EUTELSAT exchange Fascicle frequency Fujitsu Geneva Genève HD-MAC HDTV INMARSAT INTELSAT Interim Working Party International Telecommunication Union ISDN Japan Mbit/s meeting megaNet ment mobile munications October operation optical fibre orbit organizations Parties of Study planning Plenary Assembly Posts production programme radio receiver regional Senior expert Separate editions signals simulation sion space Specialist standard station Study Group XI Swiss francs switching Switzerland tariff technical tele Telecom telecommunica Telecommunication Journal Telefax Telegraph Teletex television Telex tion transmission transmitting Trilingual edition F UNDP United Kingdom USAIT users USSR volume W A USA