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随着广播电视设备技术不断的发展与提高,除了设备对信号源的质量要求提高;听众对音频信号的声响、音质也有了更高的要求。而现在广播节目基本都是直播,信号源的柔顺与平稳直接关系到传输设备及发射机的安全工作,同时也关系到节目信号播出质量。新疆广电局632台在没有使用MX30双路压限器之前,发射机遇到大信号时经常发生过荷现象或烧坏功放模块板;信号太小时,发射机调幅度不达标。当时的信号源很难满足全固态数字发射机的要求,从使用MX30双路压限器后,发射机工作中的以上现象得到彻底改变。
With the continuous development of radio and television equipment technology and improve, in addition to equipment, the quality requirements of the signal source to improve; listeners of the audio signal sound, sound quality also have higher requirements. Broadcasting programs are now live, the smooth and steady signal sources directly related to the safety of transmission equipment and transmitters, but also related to the broadcast quality of the program signal. Xinjiang Broadcasting Bureau 632 Taiwan before using the MX30 dual pressure limiter, the transmitter often encountered a large signal overload phenomenon or burn the power amplifier module board; signal is too small, the transmitter amplitude modulation is not up to standard. At the time of the signal source is difficult to meet the requirements of all-solid-state digital transmitter, from the use of MX30 dual pressure limiter, the transmitter in the above work has been completely changed.