在无线传输测震台网工作中,必须每天定时检查整个系统频率特性和放大倍数的变化率,以判断各遥测子台的信号拾取、传输通道的信号传递和记录系统的信号再现是否正常。为此我们制作了“地震仪自动阶跃脉冲标定器”,经过半年多的使用证明,该仪器可以满足遥测台网自动监测的需要。该仪器采用晶体管钟作为时间服务,利用品体管钟闹时系统12小时循环工作的特点,作 In wireless transmission seismograph network work, we must regularly check the frequency of the entire system regularly and the rate of change of magnification to determine the telemetry sub-station signal pickup, transmission channel signal transmission and recording system signal reproduction is normal. To this end, we have produced a “seismograph automatic step pulse calibrator”, after more than six months of use proved that the instrument can meet the needs of telemetry network automatic monitoring. The instrument uses the transistor clock as a time service, the use of body clock alarm when the system features 12-hour cycle of work for