Telecommunication Journal, 57. sējums,1-432. lapaInternational Telecommunication Union., 1990 |
No grāmatas satura
1.–3. rezultāts no 82.
119. lappuse
... radio was used to save life at sea involved an appa- ratus built by Alexander Popov , the Rus- sian scientist who experimented with radio transmission in 1895 and who suc- ceeded in sending a signal about 5 km in 1897. On 23 January ...
... radio was used to save life at sea involved an appa- ratus built by Alexander Popov , the Rus- sian scientist who experimented with radio transmission in 1895 and who suc- ceeded in sending a signal about 5 km in 1897. On 23 January ...
240. lappuse
1. Brief historical review I T is difficult to talk about the future of radio without taking a glance at its origins . While Guglielmo Marconi may be consi- dered as the inventor of radio , who freed telecommunications from the con ...
1. Brief historical review I T is difficult to talk about the future of radio without taking a glance at its origins . While Guglielmo Marconi may be consi- dered as the inventor of radio , who freed telecommunications from the con ...
242. lappuse
... radio broadcasting consti- tutes the first step towards breaking down the barrier of isolation , improving people's conditions of life and providing them with essential data and useful information concerning health , trade and other ...
... radio broadcasting consti- tutes the first step towards breaking down the barrier of isolation , improving people's conditions of life and providing them with essential data and useful information concerning health , trade and other ...
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