The National Instruments part number 780277-01 designates the PXIe-5611 I/Q Modulator Module, an essential component of the PXIe-5673E Vector Signal Generator system. This versatile module operates over a frequency range of 50 MHz to 6.6 GHz and is designed for seamless integration with other modules such as the PXIe-5450/5451 Waveform Generator and the PXIe-5650/5651/5652 RF Analog Signal Generators. The module features an input power specification of 0 dBm with an input impedance of 50 Ω and an input VSWR of less than 2:1. It supports a maximum RF input power of 19 dBm per I/Q input and features a nominal output power of 0 dBm, typically varying by ±1.0 dB with a resolution of 0.5 dB. With a nominal output impedance of 50 Ω, the output VSWR is frequency-dependent. The module dimensions are 8.5 inches in length, 0.8 inches in height, and 5.1 inches in width, with a weight of 20 oz. Power requirements include a typical current of 0.6 A at +3.3 VDC and 0.7 A at +12 VDC, with a maximum draw of 0.8 A. Power consumption is generally around 10.5 W. The 780277-01 is equipped with an SMA female-type connector and is recommended for operations in indoor environments with an ambient temperature range of 0 °C to 55 °C and a humidity range of 10% to 90% (non-condensing). Storage conditions allow for temperatures between -40 °C to 71 °C and humidity from 5% to 95% (non-condensing). For optimal performance, a yearly calibration is recommended.