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由陕西广播电视设备厂研制生产的50kW脉宽调制中波广播发射机,1kW脉宽调制全固化中波广播发射机、Ⅲ型调频(立体声)激励器于1991年12月28日通过部级鉴定。 50kW脉宽调制中波广播发射机是机电部科研项目,工厂在广泛听取用户意见和参照国外同类产品先进水平的基础上进行线路和结构设计。在设计中尽量采用新技术、新器件、新材料和新工艺,使产品具有先进性和时代感,具备高抗干扰性和工作可靠性,具备齐全的程序控制功能和保护功能。经整机调试,主要技术问题得到满意的解决,达到设计要求。该产品在自动化方面首次实现大型广播发射设备微机控制,属国内领先。 1kW脉宽调制全固化中波广播发射机的研制成
The 50kW pulse-width modulated medium-wave broadcast transmitter developed by Shaanxi Radio and Television Equipment Factory, the 1kW pulse-width modulated all-solidified medium-wave broadcast transmitter and the type Ⅲ FM (stereo) exciter passed ministry-level appraisal on December 28, 1991 . 50kW pulse-width modulated medium wave radio transmitter is a research project of the Ministry of Electrical and Mechanical Services. The factory conducts circuit and structural design based on extensively listening to users’ opinions and referring to the advanced level of similar foreign products. In the design as much as possible the use of new technologies, new devices, new materials and new technology, the product has advanced and the sense of the times, with high anti-interference and reliability, with a full range of program control and protection features. Commissioned by the whole machine, the main technical problems have been satisfactorily resolved and meet the design requirements. The product for the first time in the automation of large-scale broadcast transmission equipment microcomputer control, a leading domestic. 1kW pulse width modulated all-solid-wave radio transmitter developed