Agilent/Keysight M9703B

The Keysight M9703B is an AXIe high-speed digitizer and wideband digital receiver delivering phase-coherent multi-channel signal acquisition for demanding RF, radar, and defense applications. This single-slot card combines 12-bit ADC resolution with eight DC-coupled channels, sampling to 1.6 GS/s standard or 3.2 GS/s in interleaved mode, and supports input frequencies from DC to 650 MHz (or up to 2 GHz with the -F10 option). With 16 GB of DDR3 acquisition memory, four Xilinx Virtex-6 FPGAs for real-time processing, and channel-to-channel skew stability of ±200 fs, the M9703B excels in phased-array antenna development, radar signal analysis, and multi-channel coherent measurements.

Technical Specifications

• ADC Resolution: 12-bit


• Channel Count: 8 channels standard; 4 channels with interleaving option (-INT)


• Sampling Rate: Up to 1.6 GS/s (8 channels); up to 3.2 GS/s (4-channel interleaved mode with -SR2 and -INT)


• Input Frequency Range: DC to 650 MHz (-3 dB); DC to 2 GHz with -F10 option (non-interleaved); DC to 1.4 GHz interleaved with -F10


• Acquisition Memory: 16 GB DDR3 total (1 GSample/channel)


• Input Impedance: 50 Ω


• Coupling: DC coupled


• Full Scale Range: 1 V or 2 V selectable


• Input Voltage Offset Range: ±2x FSR


• Channel-to-Channel Skew Stability: ±200 fs


• Trigger Time Interpolator Precision: Up to 15 ps RMS with -SR2 option

Key Features

• Four Xilinx Virtex-6 FPGAs for real-time signal processing


• Optional digital down-converter (-DDC) for signal tuning, dynamic range enhancement, and noise floor reduction


• Customizable I/O interfaces


• Multi-module synchronization supporting up to 64 phase-coherent channels in suitable AXIe chassis


• Multichannel phase-coherent DDC streaming and recording (-CB1/-CB2 options)

Typical Applications

• AESA phased-array antenna characterization


• Radar signal acquisition and analysis


• 5G and satellite communications


• Aerospace and defense RF measurements


• Advanced physics research

Compatibility & Integration

• AXIe and AdvancedTCA (ATCA) compliant


• Compatible with M9506A AXIe chassis


• IVI-C and IVI-COM drivers (IviDigitizer class)


• Support for Visual C/C++, C#, VB.NET, MATLAB, LabVIEW, and Linux