1KW全固态PDM中波发射机改频实践与探讨
1KW All-solid-state PDM Medium Wave TransmitterPractice and Discussion of Frequency Change
张志强1
作者信息
- 1. 广东省909台,广东珠海 519000
- 折叠
摘要
广东省909台1503KHz频率的节目始终采用单机模式进行播出,为了提升安全播出保障能力,利用其他台站淘汰闲置的旧发射机进行改频,从而形成了1主1备的配置模式.变更发射载频同时确保设备能够持久稳定输出,此类任务需具备专业素养,涉及深厚的理论基础与实践技巧.本篇文章以1KW全固态PDM中波发射机将其输出载波由1206KHz调整至1503KHz为案例分析,细致阐述了整个改变频率的过程,包括理论分析、数值计算及实际操作步骤,旨在提供给业界同仁参考.
Abstract
The 909 radio station of Guangdong Province of programs with 1503KHz frequency have always been broadcast in standalone mode.In order to improve the security of broadcasting,other stations have been used to eliminate idle old transmitters for frequency change,thus forming a configuration mode of 1 master and 1 standby.To change the transmission frequency and maintain the long-term stable broadcast of the equipment is a very professional work,which requires a certain theoretical knowledge and practical ability.In this paper,the carrier frequency of 1KW all-solid-state PDM is changed from 1206KHz to 1503KHz as an example,and the analysis,calculation and adjustment of the frequency change process are described in detail for reference by peers
关键词
中波发射机/发射载频/输出网络/参数调整Key words
medium wave transmitter/transmit carrier frequency/output network/parameter tuning引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据