Part Number: 781261-01

The National Instruments 781261-01 RF Vector Signal Generator, identified by the PXIe-5673E model designation, is an advanced solution tailored for RF signal generation and modulation in both industrial and research environments. This system incorporates multiple PXI Express hardware modules, including the PXIe-5611 IQ modulator, PXIe-5450/5451 arbitrary waveform generator (AWG), and the PXIe-5650/5651/5652 RF analog signal generator. Together, these modules deliver a remarkable instantaneous bandwidth of 100 MHz and a versatile frequency range spanning 85 MHz to 6.6 GHz.

Characterized by a dynamic range of 156 dB, the 781261-01 ensures exceptional signal delivery, with a noise density as low as -144 dBm/Hz at a 0 dBm output level. Users can efficiently create complex signals through the onboard waveform memory, which supports storage and manipulation of signals. The integration of the NI-RFSG instrument driver software enhances the seamless operation of all modules as a cohesive unit, improving overall system efficiency by simplifying configuration and control.

Designed within a four-slot wide PXI/3U CompactPCI form factor, the system guarantees compatibility and ease of integration with existing setups. The front panel offers SMA and SMB connectors, providing comprehensive connectivity options for various input and output signal types. Notably, the 781261-01 features fast rise and fall times of less than 5 ns and a maximum pulse repetition frequency of 50 MHz, facilitating precise pulse modulation. Enhanced control over output parameters and robust overload protection features ensure reliable operation. The PXIe-5611 IQ modulator module includes safeguards for both DC input and RF power, while the front panel’s local output can operate across an extensive frequency range of 50 MHz to 6.6 GHz.

The National Instruments 781261-01 RF Vector Signal Generator is an essential instrument for applications in wireless communications, radar, electronic warfare, and RF component testing.