The National Instruments 781340-02 PXI Vector Signal Generator is part of the PXIe-5673E series, specifically designed with 512 MB of onboard memory per channel. This model incorporates a synergistic combination of essential modules, including the NI PXIe-5450/5451 Arbitrary Waveform Generator (AWG), the NI PXIe-5611 I/Q Modulator, and the NI PXIe-5650/5651/5652 Local Oscillator (LO) Source, providing robust signal generation capabilities. The 781340-02 configuration features two channels; for applications requiring additional channels, variants with three (part number 781340-03) and four channels (part number 781340-04) are also available.

This generator excels in a variety of signal and waveform generation tasks when paired with appropriate software, including continuous waveform output supported by its ample onboard memory. The front panel includes multiple SMA female connectors along with two SMB connectors, ensuring straightforward integration with other modules. Power specifications vary by module, with the I/Q Modulator requiring a typical power of 10.5 W, while the AWG module consumes either 32.7 W (PXIe-5450) or 37.5 W (PXIe-5451), and the LO Module typically requires 12.6 W.

Designed for operational reliability, the 781340-02 functions effectively within an ambient temperature range of 0 °C to 55 °C and can be stored in a broader range from -40 °C to 71 °C. The total weight of the fully assembled generator is 1,458 g (52 oz), and the dimensions vary by module type, with the one-slot PXIe modules measuring 21.6 cm × 2.0 cm × 13.0 cm (8.5 in. × 0.8 in. × 5.1 in.) and the two-slot PXIe modules measuring 21.6 cm × 4.0 cm × 13.0 cm (8.5 in. × 1.6 in. × 5.1 in.). The PXIe-5673E series is backed by a three-year warranty from National Instruments, ensuring long-term reliability and performance.