By reading the GPS time, the drivers can synchronize the RTC clock in the main control unit PC104 of the seafloor MT instrument with the GPS time at microsecond level.

• 程序可读入GPS时间，使海底大地电磁仪主控单元PC104的RTC时钟与GPS时钟在微秒级内保持一致，并能控制采集的同步启动，保证远参考测量的实现；