Support for Keysight's 89601A Series Vector Signal Analyzer software, enabling users to control and directly extract data from the E4406A for flexible demodulation analysis on a PC. W-CDMA - Up to 3X speed improvement in ACP and EVM measurement speed. IS2000 - Faster ACP and EVM, quasi-orthogonal function support, timing and phase modulation accuracy measurements. GSM/EDGE - New multi-slot power vs. time measurement, EDGE TX band spur measurement.The Keysight Technologies E4406A vector signal analyzer (VSA) is a full-featured transmitter tester designed to meet the test needs of wireless equipment developers and manufacturers. For wireless base station and mobile transmitters and their components, the easy-to-use E4406A provides the best combination of speed and accuracy for a wide range of digital modulation analysis capability. And, with multiformat capability (W-CDMA, cdma2000, 1xEV-DO, cdmaOne, EDGE, GSM, NADC, and PDC) the E4406A is the ideal, flexible choice for your production line. Easily configure one-button measurements with the simple, straight-forward menu structure and view them on the large, high-resolution color display. With built-in, standards-compliant tests and state-of-the-art digital IF technology, engineers can be confident that test results are accurate. And, when combined with the Keysight ESG-D series of RF digital signal generators, the E4406A VSA provides a powerful, transmit-receive test solution for wireless-equipment manufacturers.