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近年来,调频(FM)广播越来越受到广大听众和广播工作者的青睐。它在大城市中为听众提供优质立体声广播,交通信息等专项服务。在农村则成为广播宣传的主要手段之一。在我国广播电视系统中,调频广播台的发展甚至超过了受到普遍重视的电视发射台的发展速度。至1992年底调频发射台的总数已达数千座,并仍有继续发展的势头。 调频广播的发展虽然很快,但国内却缺少必要的监测和维护设备。 针对这样的情况,安徽省广播电视科研所在1988年研制成功数字式调频频偏测试仪的基础上,又研制成功1MS-920型智能化调频综合测试仪。
In recent years, FM radio has become more and more popular among listeners and broadcasters. It provides listeners with high-quality stereo broadcasts, traffic information and other special services in big cities. In the rural areas it became one of the main means of broadcasting. In our radio and television system, the development of FM radio stations has even exceeded the speed of development of television transmitters, which have been given the general attention. By the end of 1992, the total number of FM transmitters had reached thousands, and the trend of continued development is still under way. Although the development of FM radio is very fast, the necessary monitoring and maintenance equipment is lacking domestically. In response to such a situation, Anhui Radio and Television Research Institute successfully developed in 1988 on the basis of digital FM offset tester, but also successfully developed 1MS-920 intelligent FM integrated tester.