Keysight Technologies E4412A is a high-performance spectrum analyzer that offers exceptional accuracy, sensitivity, and dynamic range. Its unique selling points include:

Industry-leading phase noise performance for precise signal analysis
Wide frequency range of 9 kHz to 26.5 GHz for versatile applications
High sensitivity of -163 dBm/Hz for detecting weak signals
Wide dynamic range of 120 dB for capturing both strong and weak signals simultaneously
* Fast sweep speeds of up to 40 GHz/s for efficient spectrum analysis