Notice to EU customers: This product is no longer available due to lack of compliance with EU RoHS directive 2011/65/EU. Keysight will continue service and support to the end of worldwide support life. 102.4 kHz at 1 channel, 51.2 kHz at 2 channel, 25.6 kHz at 4 channel 100, 200, 400, 800, and 1600 lines of resolution 90 dB dynamic range, 130 dB in swept-sine mode 15 Measurements and 7 different source signals The 35670A Dynamic Signal Analyzer was discontinued on December 1, 2018. The last day to place an order for this product was November 30, 2018. Keysight will continue to provide world-class support for this product for the standard period of 5 years. The Keysight 35670A is a versatile FFT analyzer with a built-in source for general spectrum and network analysis and for octave, order, and correlation analysis. The built-in source with optional analysis features optimizes the instrument for analyzing and troubleshooting noise, vibration, and acoustic problems, evaluating and solving rotating machinery problems, and characterizing control systems parameters.