The National Instruments part number 781263-01 refers to the PXIe-5673E PXI Vector Signal Generator, a highly versatile device capable of operating at a frequency of 6.6 GHz. This model is equipped with 128 MB of onboard memory, which is ideal for various signal generation applications. In addition to this variant, National Instruments also offers two other configurations with expanded memory: the 781263-02 featuring 512 MB and the 781263-03 with 2 GB. The 781263-01 is part of a modular system that utilizes multiple interconnected components including the PXIe-5450 or PXIe-5451 Arbitrary Waveform Generators, the PXIe-5611 I/Q Modulator, and the PXIe-5650/5651/5652 LO Source Module, providing comprehensive functionality for signal generation tasks.

Each module is designed for seamless integration, featuring SMA Female connectors along with two SMB connectors on the Arbitrary Waveform Generator, ensuring robust connectivity. Power consumption varies by module; the PXIe-5450 and PXIe-5451 typically consume 32.7 W and 37.5 W, respectively, while the I/Q Modulator operates at 10.5 W and the LO Source Module at 12.6 W. Compactly designed, the 781263-01 fits into a variety of test systems, with one-slot modules measuring 21.6 cm x 2.0 cm x 13.0 cm and weighing 1,458 g when fully assembled. The device is operational within a temperature range of 0 °C to 55 °C and relative humidity levels of 10% to 90% during operation. National Instruments backs the PXIe-5673E with a three-year warranty, ensuring reliability and performance in industrial applications.