Rohde Schwarz SMB100A RF Signal Generator 9KHz-3.2GHz SMB100A Rohde Schwarz SMB100A 9 kHz - 3.2 GHz Signal Generator with Option B103 (Frequency range of 9 kHz to 3.2 GHz with electronic attenuator), B1H (OCXO High Performance Reference Oscillator), B37 (High Output Power) and K22 (Pulse Modulation). ONLY 70 OPERATIONAL HOURS LOGGED ON THIS UNIT! The images depict the actual item you will receive. We will record the serial number prior shipping Self test PASSED (shown on the video) Please be aware that this unit powers on, but it has not undergone professional testing. Therefore, it is being sold AS IS, without any guarantees or warranties.