城市住宅社区有线电视系统常见问题与应对策略  

Common Problems and Countermeasures of Cable TV System in Urban Residential Community

作　　者：段文生 DUAN Wensheng(Shandong Ju county financial media center,Juxian 276500,China)

机构地区：[1]山东省莒县融媒体中心,山东莒县276500

出　　处：《电视技术》2021年第4期30-32,共3页Video Engineering

摘　　要：有线电视网络系统的信号传输依靠同轴电缆、光缆及微波等介质,为特定用户分配或交换声音、图像及数据等信息,可以为用户提供多套电视节目乃至各种信息服务。在城市社区中,由于住户多、使用频率高、用户同时段使用较为集中,有线电视容易出现显示故障问题。基于此,分析有线电视系统经常出现的干扰和雪花噪点等问题的产生原因,并提出应对策略,以保障有线电视提供高质量服务。The signal transmission of the cable television network system relies on media such as coaxial cable,optical cable or microwave,which distributes or exchanges information such as voice,image or data for specific users,and can provide users with multiple sets of television programs and even various information services.In urban communities,due to the large number of residents,the high frequency of use,and the concentrated use of segments at the same time,cable TV display problems are often prone to malfunctions.Based on this,this paper analyzes the causes of the interference and snowflake noise in the cable TV system,and puts forward some countermeasures to ensure the cable TV to provide high-quality service.

关 键 词：有线电视 谐波干扰 放大器 

分 类 号：TN949.194[电子电信—信号与信息处理]