Keysight / Agilent 85053B Used for Sale: The Keysight / Agilent 85053B is a high-performance spectrum analyzer that offers exceptional accuracy, sensitivity, and dynamic range. It is ideal for a wide range of applications, including RF testing, signal analysis, and interference hunting. What sets the Keysight / Agilent 85053B apart from competitors is its combination of features and performance. It offers a wide frequency range of 9 kHz to 2.2 GHz, a high sensitivity of -160 dBm, and a wide dynamic range of 120 dB. It also features a variety of built-in measurement functions, including spectrum analysis, power measurements, and modulation analysis. The Keysight / Agilent 85053B is a versatile and powerful spectrum analyzer that is ideal for a wide range of applications. It is a valuable tool for any engineer or technician who needs to perform accurate and reliable RF measurements.