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Currently supported platforms and their spec. are listed in the table. Since the NI VST aims for high-end test instruments, it¡¯s with calibrated power and excellent EVM performance (about -50dB in loopback test). However, USRP is an uncalibrated software defined radio, its power can only be controlled by TX/RX gain settings, but this only changes the relative value of the power magnitude, and its power also varies with frequency band. Therefore, the TX/RX power calibration process must be completed before one can set the TX power or measure the RX power in dBm.
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IEEE/ICACT20230156 Slide.14
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