Keysight (Agilent/HP) 3566A

Agilent / HP 3566A Signal Analyzer Frequency range: 0.000122 Hz - 128 kHz Frequency accuracy: 0.1 Hz Resolution bandwidth: 122 mHz - 512 Hz Average noise level: -137 dBV Dynamic range: 72 dB Multi-channel. Installed modules 35651 C Signal processing module 35653 C Source module 35655 A Input module 8 channels 35659 A SCSI interface module FFT Analyzer 64 µHz - 12.8 kHz