Description

The TwinRX daughterboard for the USRP™ X Series software defined radios is a dual channel superheterodyne receiver that offers wide dynamic range and accurate phase synchronization for spectrum monitoring and direction finding applications. The RF signal chain features preampilifiers, preselectors, attenuators, and two mixer stages for excellent selectivity and spurious performance. The receiver is tunable from 10 MHz – 6 GHz and has 80 MHz of instantaneous bandwidth per channel, providing the versatility necessary to analyze a variety of signals in multiple bands of interest. Users can tune the two channels independently to simultaneously monitor uplink and downlink communication with a combined bandwidth of 160 MHz. The ability to share the LO between channels across multiple daughterboards enables the phase-aligned operation required to implement scalable multichannel phased arrays. The receiver is capable of fast frequency hopping to detect frequency agile emitters. The USRP Hardware Driver™ (UHD) software API automatically configures RF attenuation and preamplication to optimize dynamic range in favor of noise figure for faint signals, or IP3 for stronger signals. With the RF Network on Chip (RFNoC™) FPGA development framework, users can seamlessly off load compute intensive components of their application from host to FPGA for hardware acceleration and real-time performance.

Block Diagram

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RF Information

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