For example: Agilent E4440A or Anritsu 68369
National Instruments PXI
National Instruments PXI-1000B
National Instruments PXI-1000B 8-Slot 3U PXI Chassis With 10 to 32 VDC
Manufacturer: National Instruments
National Instruments PXI-1033
National Instruments PXI-1033 5-Slot PXI Chassis w/ MXI-Express Controller
Manufacturer: National Instruments
National Instruments PXI-1045
18-Slot 3U PXI Chassis with Universal AC Power Supply
Manufacturer: National Instruments
National Instruments PXI-5620
National Instruments NI-5620 Frequency Domain Digitizer, 14 Bit, 64 MS/s
Manufacturer: National Instruments
