radio broadcast started in india in 1927 with two privately owned transmitted s at mumbai and calcutta.the goverment of india took them over in 1930. and started operating them under the name of indian brodcasting service in 1936.the name of the service was changed to all india radio since 1957, it has been called Akashwani radio programme are receiving by over 2 crore radio receiver set in india and this mass communication medium is serving as on effective mediam not only to inform and educate people but also to provide entertainment.
At the time of independence in 1947 , all india radio's network consisted of six radio station. its network now comprises 179 broadcastion centers consisting of 172 full fledged stations.three relay centers one auxiliary center and three execlusive vividh bharti commercial centers.
Televison :-
india's 1st television center came in to being in september 1959 as a pilot pronject it was a modest beginning thrice a week and was a part of all india radio. it was in august 1965 that the first general service started from dewlhi on a regular basis. thereafter a number of televison centers become operational from october 1972 onwards in quick succession. these ware located at mumbai , srinagar, jalandhar , calcuttam chennai and lucknow. in 1976 television set up delinked from the air and given a separate status and name of doordarshan. the asian games in 1962 sow the next sport when when 20 low power transmiter were unstalled of different state capitals and important towns.
august 15 1982 saw another landmark in the history of doordarshan when colour television was introduce in india. after insat-1A became operational , comman national programme ware started for the entire network and doordasshan utilise insat to extend its service to backward and remote rural area. doordashan now reaches and estimated over 87% of the population through a network of 897 terrestrial transmitters. its internatiol channel beams programmes to more that half the globe. dd has started a new spot channel to popularise sprots. during 1997 - 1998 , dd earnned Rs. 5 billiion in commrical advertisement.
meanwhile, after being kept in abeyance for seven years the prasar bharti act 1990, giving autonomy to air and doordarsan came in to force on september 15,1997.
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