地面数字电视发射机技术特点及日常维护研究

Research on technical characteristics and routine maintenance of terrestrial digital TV transmitter

在当前最为先进的科技支撑下,数字电视发射机有效保障了电视图像的高清晰度以及声音质量,由过去的模拟电视信号时代跨入无线数字信号时代。我们享受地面数字发电机所带来的高质量技术服务的同时,其日常维护工作的展开和要求也变得复杂。结合地面数字电视发射技术的特点如何保障安全播出为当前我们必须思索的问题。文章基于地面数字电视发射机的技术特点,并从发射机的日常维护提出数字电视激励器和功率放大器的日常维护、冷却系统的日常维护与管理、针对开机之前检查与维护等策略。

Supported by the most advanced technology at present,digital TV transmitter effectively guarantees the high definition and sound quality of the transmission image of wireless digital TV,thus making the whole human society step into the wireless digital signal era from the past cable TV signal era.However,while we enjoy the high quality technical service brought by the ground digital generator,the development and requirements of its daily maintenance have become complicated and fine.How to combine the characteristics of the ground digital TV generator technology to ensure its normal operation has become a difficult problem that we must think about at present.Based on the technical characteristics of terrestrial digital TV transmitter,and starting from the daily maintenance of transmitter,this paper puts forward countermeasures,including:daily maintenance of digital TV exciter and power amplifier device,daily maintenance and management of cooling system,check and maintenance before starting up.