We use the QSZ24 2Mbit/s digital transmit integrate test instrument to test the BER, in the laboratory condition, the BER is equal to zero after a long time testing.

• 使用QSZ24 2Mbit/s数字传输综合测试仪进行系统自环、对接误码率测试,在实验室条件下,经长时间误码测试,误码率为0。