PT9201C Telephone Transmission Tester is an electro-acoustic instrument designed especially for testing telephone transmission characteristics. It takes digital structure and screen display with all the functions controlled by CPU and has a dynamic rang more than 70dB with high stability and reliability. It's easy and quick in operation, and can print out test result when connecting to printer. It is an advanced instrument necessary is development, production, maintenance and test for telephone.
• Test Sending/receiving and side tone of Reference Equivalent (RE) and Loudness Ratio （LR）in 0 ,3 ,5kmsimulation subscriber line with frequency response curve. • Test telephone return loss of 0 ,2Km • Test telephone amplitude characteristics • Providing 60V ,48V feeding bridge in active or inactive status • Full automatic test with the function to judge whether or not the test data of the telephone sets meet the requirements or limits defined by customer and alarm automatically if not. • Printer interface to output test result to printer • Full-VGA display the test conditions, test results and frequency response curve instantly, and center the frequency response curve automatically. • Test non-linear distortion of send and receive in 0 ,3 ,5Km as national standard required. • Ambient noise reduction by frequency tracing filler. • Providing each of national standard required, include India Germany ,U.K ,France ,Italy ,Denmark ,ETSI-TBR38 ,Switzerland ,U.S.A(Canada) ,Japan ,Chile ,FT2-121Q4.