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National Instruments 783148-01 Software Defined Radio Device

The National Instruments 783148-01, also known as model USRP-2943R, is a multifaceted Software Defined Radio (SDR) device designed for both transmission and reception in a broad range of radio frequency applications. It is equipped with both dual transmitter and receiver channels, which can support a frequency range from 1.2 GHz to 6 GHz. With a configurable output power range of 50 mW to 100 mW for frequencies between 1.2 GHz and 3.5 GHz and 5 mW to 32 mW for frequencies up to 6 GHz, the transmitter runs with a frequency step of less than 1 kHz. With precise 0.5 dB increments, it offers a gain range of 0 dB to 31.5 dB. As a result, the signal strength can be precisely controlled during transmission.

The resolution of the digital-to-analog converter (DAC) is 16 bits. This guarantees the production of high-quality signals and reduces signal distortions thanks to the spurious-free dynamic range (sFDR) of 80 dB. On the receiving end, the 783148-01 device provides two channels that span the same 1.2 GHz to 6 GHz frequency range. For optimal signal reception, it offers a gain range of 0 dB to 37.5 dB with 0.5 dB adjustable steps, and it supports a frequency step size of less than 1 kHz. The noise figure of the receiver ranges from 5 to 7 dB. An sFDR of 88 dB is provided by the device's 14-bit analog-to-digital converter (ADC). Depending on the setup, the maximum real-time bandwidth is either 40 MHz or 120 MHz.

The NI 783148-01 device supports a maximum I/Q sample rate of 200 MS/s. It is powered by a 9 V to 16 V DC input and consumes between 38 W and 44 W. The onboard memory consists of 1,024 MB of DRAM that provides sufficient space for signal processing and real-time data storage. The device is compact and lightweight measuring 26.67 cm × 4.06 cm × 21.84 cm and weighing 1.588 kg. The optimal operating temperature for this software-defined radio is 23 °C ± 5 °C, with a relative humidity range of 10% to 90%. It complies with the requirements of EN 61326-1 and other relevant standards for electromagnetic compatibility, and fulfills a number of safety and compliance standards, such as IEC 61010-1 and UL 61010-1.