National Instruments 781263-01 PXI Vector Signal Generator

Part number 781263-01 from National Instruments is the identifying number for the version of the PXIe-5673E PXI Vector Signal Generator that has a frequency of 6.6 GHz. While the 781263-01 is equipped with 128 MB of RAM, there are two additional variations of this 6.6 GHz signal generator that include even more space for onboard memory. These include part number 781263-02 with 512 MB of RAM and part number 781263-03 with an impressive 2 GB of RAM.

The 781263-01 and it’s related part numbers do not refer to a singular device, but instead represent multiple NI modules that are connected and operating together. The modules include an Arbitrary Waveform Generator (NI PXIe-5450/5451), an I/Q Modulator (NI PXIe-5611), and a LO Source Module (NI PXIe-5650/5651/5652). The front panels of the modules feature SMA Female connectors (in addition to two SMB connectors on the AWG module), offering enhanced connectivity options.

Depending on the module, the typical DC power of the 781263-01 differs. The DC power for the AWG power is typically 32.7 W (PXIe-5450) or 37.5 W (PXIe-5451), whereas the typical power of the I/Q modulator is 10.5 W. The LO Source module has an typical power measuring 12.6 W.

Designed to fit into the test systems of all sizes, the 781263-01 offers efficient operation in a more compact form. The one slot modules of the signal generator measure 21.6 cm × 2.0 cm × 13.0 cm (8.5 in. × 0.8 in. × 5.1 in.) in dimensions, while a two slot module measures 21.6 cm × 4.0 cm × 13.0 cm (8.5 in. × 1.6 in. × 5.1 in.). When fully assembled, the 781263-01 weighs in at 1,458 g (52 oz).