National Instruments 783924-01 Software Defined Radio Device

The National Instruments 783924-01 (Model Name: USRP-2942R) is a versatile software-defined radio (SDR) device. It is ideal for wireless communication research and prototyping. This SDR supports a wide frequency range of 400 MHz to 4.4 GHz that makes it suitable for diverse applications such as mobile communications, satellite links and radio astronomy. The device provides real time processing with the dual transmitter and receiver channels.

The NI 783924-01 device supports a gain range of 0 to 37.5 dB on the receiver side. The device can handle input signals up to -15 dBm while its low noise figure ranging from 5 to 7 dB. The receiver's maximum real time bandwidth is also configurable up to 120 MHz and the 14-bit analog-to-digital converter (ADC) offers high precision signal digitization with an SFDR of 88 dB. The 783924-01 device transmitter has a frequency step of less than 1 kHz, enables output power levels between 50 and 100 mW, and has a gain range that may be adjusted in steps of 0.5 dB from 0 to 31.5 dB. This fine control over gain is essential for precision in signal modulation and output power management. The maximum instantaneous real time bandwidth for the model is 40 MHz which can be expanded up to 120 MHz depending on configuration. The 16-bit digital-to-analog converter (DAC) ensures a high level of accuracy in signal generation with a spurious-free dynamic range (SFDR) of 80 dB.

The software-defined radio device operates on a DC power supply with an input voltage range of 9 V to 16 V and consumes between 38 W to 44 W. It includes 1 GB of onboard DRAM which supports fast data handling and real time processing. The device is compact and lightweight with dimensions of 26.67 cm x 4.06 cm x 21.84 cm and weighing 1.588 kg. With an operational temperature range of 23 °C ± 5 °C and a relative humidity tolerance of 10% to 90% (noncondensing), the 783924-01 device is exclusively intended for indoor usage. Numerous international safety and electromagnetic compatibility requirements, such as IEC 61010-1 and EN 61326-1, are met by the product.