摘要
通过对钢轨引接线、扼流变压器、移频电码化发送条件等改进的介绍，阐明了２５Ｈｚ相敏轨道电路主要技术指标的提高。
In this paper, the improvement to the track lead, impedance bond, coding conditions of the FSK track circuits are highlighted and the resulted main technical specifications of the 25Hz phase sensitive track circuits are introduced.
出处
《铁道通信信号》
1998年第2期8-10,共3页
Railway Signalling & Communication
