The Keysight N9912CU/309 is the DC bias variable voltage source option for the N9912C. This option is used to provide DC power to amplifiers under test and bias tower mounted amplifiers (TMA) when you need to sweep through the TMA to reach the antenna.

N9910X-713 cable is recommended / sold separately (bias-tee power cable SMB (f) to BNC (m)).

To view the N9912C configuration guide, please see page 4 of the document linked here.

Keysight offers over 20 measurement options for the N9912C. The following are part numbers for each. Additional information can be found in the configuration guide, data sheet and manual attached to this page.

• N9912CU/010 - Vector Network Analyzer Time Domain
• N9912CU/030 - Remote Control Capability
• N9912CU/208 - USB Power Sensor Measurements Versus Frequency
• N9912CU/215 - TDR Cable Measurements
• N9912CU/220 - Tracking Generator
• N9912CU/235 - Pre Amplifier
• N9912CU/236 - Interference Analyzer and Spectrogram
• N9912CU/238 - Spectrum Analyzer Time Gating
• N9912CU/302 - USB Power Sensor Support
• N9912CU/307 - GPS Receiver
• N9912CU/308 - Vector Voltmeter
• N9912CU/309 - DC Bias Variable-Voltage Source
• N9912CU/310 - Built-In Power Meter
• N9912CU/312 - Channel Scanner
• N9912CU/330 - Pulse Measurements
• N9912CU/350 - Real-Time Spectrum Analyzer (RTSA)
• N9912CU/352 - Indoor and Outdoor Mapping
• N9912CU/355 - Analog Demodulation
• N9912CU/358 - EMF Measurements
• N9912CU/361 - EMI Measurements
• N9912CU/370 - Over the Air LTE FDD Measurements
• N9912CU/371 - Over the Air LTE TDD Measurements
• N9912CU/378 - Over-the-Air (OTA) 5G RR Measurements
• N9912CU/B04 - Bandwidth, 40 MHz