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随着全世界范围逐步推行地面数字电视,许多广播业者正在为未来提前规划和做预算。在大多数情况下,模拟业务还必须继续若干年,而新数字接收机或机顶盒的普及也不够快。必须更换旧和老化模拟发射机的广播业者必须作出一个商业决定。他们有几种选择:(1)继续使用旧发射机,希望没有严重问题发生;
With the gradual introduction of terrestrial digital television worldwide, many broadcasters are planning ahead and budgeting for the future. In most cases, the analogue business must continue for several years, and the popularity of new digital receivers or set-top boxes is not fast enough. Broadcasters who must replace old and aging analog transmitters must make a business decision. They have several options: (1) continue to use the old transmitter in the hope that no serious problems will occur;