HP37721A数字传输分析仪可对Mb s数字信号进行误码测试及G．821误码分析。测试结果可以图形方式进行统计分析。同时可用于快速在线测试检测各种复帧告警，CRC-~误码，帧比特误码计数等。

Description: The Agilent HP 37721A is a  Digital Transmission Tester.

Product Specs:
Bit and code error testing at 704 kb/samp; 140 Mb/s
Portable, lightweight, rugged
Text and graphic results on large display
Stored setups and autosetup for ease of use
Remote control, frequency offset and measurement, multiple outputs