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户外现场直播节目在不同的地点、不同的环境中如何传输音频信号?过去几年,南海电台使用过的音频信号传输手段多种多样,比如微波传输、调频传输、ISDN(综合业务数字网)传输、光纤网络传输以及普通电话线传输等。这些传输手段都有各自的优点和缺点:高楼林立已不利于指向性较强的微波传输;小调频发射机传输距离有限,且易受干扰;IS-
How to transmit audio signals in different locations and different environments? In the past few years, the means of transmitting audio signals used by Nanhai Radio Station have been varied, such as microwave transmission, FM transmission, ISDN transmission , Fiber optic network transmission and ordinary telephone line transmission. These means of transmission have their own advantages and disadvantages: high-profile buildings have been detrimental to the more directional microwave transmission; small-scale transmitters transmit a limited distance and susceptible to interference; IS-