谁能详细介绍一下VOA如题

谁能详细介绍一下VOA如题
谁能详细介绍一下VOA
如题

谁能详细介绍一下VOA如题
Voice of America (VOA),is the official external radio and television broadcasting service of the United States federal government.Its oversight entity is the Broadcasting Board of Governors (BBG).
VOA broadcasts by satellite and on FM,AM,and shortwave radio frequencies.Its programs are also available through the Internet in both streaming media and downloadable formats at www.VOANews.com.VOA has affiliate and contract agreements with many radio and television stations and cable networks worldwide.
VOA was organized in 1942 under the Office of War Information with news programs aimed at areas in Japan and the south Pacific and in Europe and North Africa under the occupation of Nazi Germany.VOA began broadcasting on February 24,1942.In 1952,the Voice of America installed a studio and relay facility aboard a converted U.S.Coast Guard cutter renamed Courier whose target audience was Russia and its allies.The Courier was originally intended to become the first in a fleet of mobile,radio broadcasting ships (see offshore radio) that built upon U.S.Navy experience during WWII in using warships as floating broadcasting stations.However,the Courier eventually dropped anchor off the island of Rhodes,Greece with permission of the Greek government to avoid being branded as a pirate radio broadcasting ship.This VOA offshore station stayed on the air until the 1960s when facilities were eventually provided on land.The Courier supplied training to engineers who later worked on several of the European commercial offshore broadcasting stations of the 1950s and 1960s.
During the Cold War,the U.S.government placed VOA under the U.S.Information Agency to transmit worldwide,including to the countries behind the Iron Curtain and to the People's Republic of China (PRC).In the 1980s,the USIA established the WORLDNET satellite television service,and in 2004 WORLDNET was merged into VOA.
In 1947,Voice of America started broadcasting in Russian with the intent to counter more harmful instances of Soviet propaganda directed against American leaders and policies.[3] Soviet Union responded by initiating aggressive,electronic jamming of VoA broadcasts on 24 April 1949.[3]
Throughout the Cold War,many of the targeted countries' governments sponsored jamming of VOA broadcasts,which sometimes led critics to question the broadcasts' actual impact.However,after the collapse of the Warsaw Pact and the Soviet Union,interviews with participants in anti-Soviet movements verified the effectiveness of VOA broadcasts in transmitting information to socialist societies.[4].The People's Republic of China diligently jams VOA broadcasts [5](see Firedrake).Cuba has also been reported to interfere with VOA satellite transmissions to Iran from its Russian-built transmission site at Bejucal[6].
In the 1980s,VOA also added a television service,as well as special regional programs to Cuba,Radio Martí and TV Martí.Cuba has consistently attempted to jam such broadcasts and has vociferously protested U.S.broadcasts directed at Cuba.
In 1994,the Voice of America became the first [3] broadcast-news organization to offer continuously updated programs on the Internet.Content in English and 44 other languages is currently available online through a distributed network of commercial providers,using more than 20,000 servers across 71 countries.Since many listeners in Africa and other areas still receive much of their information via radio and have only limited access to computers,VOA continues to maintain regular shortwave-radio broadcasts.