电报测量台畸变测试电路的改进南宁市电信局黄秀莲我局中央室使用上海设备三厂生产的电报测量台，该测量台中的电传信号畸变测试电路只有可见信号的测试电路，即畸变测试器和电流表，无可闻的声音信号测试电路，因此对测试报路的畸变和电路障碍的判断很不方便。１．测试显... Telegraph measuring platform distortion test circuit improvement Nanning Bureau of Telecommunications Huang Xiulian Central Bureau of our bureau using Shanghai Equipment Factory production telegraph measuring station, the measuring station telemetering signal distortion test circuit only the visible signal of the test circuit, the distortion tester and Ammeter, audible sound signal test circuit, so the test report circuit distortion and circuit disorder judgment is very inconvenient. 1. Test was ...