The National Instruments 781258-01 PXI Vector Signal Generator is a sophisticated measurement solution designed for various RF applications. This model is a configuration of the PXIe-5673E, comprising three interconnected modules: the PXIe-5601 RF Signal Downconverter, the PXIe-5622 IF Digitizer, and the PXIe-5650 RF Analog Signal Generator. The 781258-01 includes 64 MB of memory, which is contingent on the specific version of the PXIe-5622 used (part number 780412-01). An alternative configuration, with part number 781258-02, offers 256 MB of memory through the PXIe-5622 model (part number 780412-02).

To operate the 781258-01 effectively, it must be housed in a PXIe chassis and requires either an MXI controller or a PXIe embedded controller. Proper safety precautions should be followed, including ensuring proper grounding before handling any attached antennas or wires, and maintaining equipment in a static-free environment when using non-insulated devices. The front panel is equipped with 19 connectors, enabling versatile connectivity for various test and measurement needs, and features six LED indicators: two per module (ACTIVE and ACCESS) which provide essential operational information.

This signal generator is optimized for indoor use, operating effectively within a temperature range of 0 °C to 55 °C and a non-condensing relative humidity of 10% to 90%. The National Instruments 781258-01 is an essential tool for precision testing in industrial control and automation settings.