公共广播音响系统目前是一个各行各业都会有需求的系统，酒店、、公园、景点等场所都会用到。当然在使用期间也会出现问题，那么预防公共广播音响系统出现不好现象的措施有什么呢？
At present, the public address sound system is a system that will be needed by all walks of life, and will be used in hotels, shopping malls, parks, scenic spots and other places. Of course, there will be problems during use. What are the measures to prevent bad phenomena in the public broadcasting audio system?
1、选购质量优的广播设备
1. Purchase high-quality broadcasting equipment
系统广播设备选用性能指标好、抗干扰能力强的产物。广播设备的抗扰能力决定于噪声的抑制能力，受广播设备的电路、制造工艺及所用材料的制约。因此如果预算允许、又想要更好的效果，建议选购更高档次的广播设备，一分钱一分货，万古不变的道理。
The broadcasting equipment of the system shall be products with good performance index and strong anti-interference ability. The anti-interference ability of broadcasting equipment depends on the noise suppression ability, and is restricted by the circuit, manufacturing process and materials of broadcasting equipment. Therefore, if the budget allows and you want better results, it is recommended to buy higher-grade broadcasting equipment. You get what you pay for, and it will never change.
2、正确连接设备间的信号线
2. Correctly connect signal lines between equipment
设备质量过关，还要注意设备信号线之间的连接。如果连接不正确或不恰当，即使是性能良好的设备也难以发挥其的品质。接地是抑制噪声和防止干扰、提高可靠性的重要技术措施。正确的接地能抑制干扰对系统的影响，又能抑制广播设备向外辐射干扰；反之，错误的接地会引入严重的干扰，甚使广播设备无法正常工作。所有的电力电缆及信号电缆均穿金属管保护，这样能起到一定的屏蔽作用。
If the equipment quality is qualified, pay attention to the connection between the equipment signal lines. If the connection is incorrect or inappropriate, even the equipment with good performance can hardly exert its excellent quality. Grounding is an important technical measure to suppress noise, prevent interference and improve reliability. Proper grounding can suppress the influence of interference on the system and the outward radiation interference of broadcasting equipment; On the contrary, wrong grounding will lead to serious interference and even make broadcasting equipment unable to work normally. All power cables and signal cables are protected by metal pipes, which can play a certain shielding role.
3、不要随意焊接屏蔽线
3. Do not weld the shield wire at will
在机房设备安装过程中，不要图方便而随意焊接屏蔽线，否则易形成闭环回路，引起系统噪声问题。防止闭环回路形成的有效方法：(1)屏蔽层一端接地(一般在信号输入端)，另一端开路；(2)分清机壳接地点、信号接地点几种接地点。
During the installation of equipment in the machine room, do not weld the shield wire at will for convenience, otherwise it is easy to form a closed loop and cause system noise problems. Effective methods to prevent the formation of closed loop: (1) one end of the shielding layer is grounded (generally at the signal input end) and the other end is open; (2) Distinguish the chassis grounding point, signal grounding point and several grounding points.
4、日常维护
4. Routine maintenance
山东公共广播音响厂家建议您要定期检查和测试背景音乐功能，确保系统功能能够正常使用；定期对扬声器的回路进行测试，保证扬声器回路处于正常状态，有效避免在出现紧急情况时能够正常使用；考虑到电子设备容易受到灰尘等的影响而出现故障，因此在设备使用过程中，需要定期进行清洁，清理灰尘的时候需要用专用的工具，且注意勿将灰尘调入设备内。
Shandong public broadcasting audio manufacturers recommend that you regularly check and test the background music function to ensure that the system function can be used normally; Regularly test the loudspeaker circuit to ensure that the loudspeaker circuit is in normal state and effectively avoid normal use in case of emergency; Considering that the electronic equipment is prone to failure due to the influence of dust, etc., it needs to be cleaned regularly during the use of the equipment. When cleaning the dust, it needs to use special tools, and pay attention not to transfer the dust into the equipment.
公共广播音响系统终呈现效果与设备质量、安装调试及后期维护有关，为了防止出现不好现象，以上几点要注意。更多注意事项来我们网站
咨询了解吧。
The final effect of public address sound system is related to equipment quality, installation, commissioning and later maintenance. In order to prevent bad phenomena, the above points should be paid attention to. More notes to our website Consult and understand.
