1. Justify why ADC is available in USRP-2901 (provide sampling rate and bit size)?
Yes, the USRP-2901 includes an Analog-to-Digital Converter (ADC) to convert real-world
analog RF signals into digital format for processing.
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Sampling rate: Up to 20 MS/s (Mega Samples per second)
Bit size: 12 bits
This high-speed, high-resolution ADC allows for accurate digitization of RF signals over
a wide frequency range, which is essential for SDR (Software Defined Radio)
applications.
2. USRP-2901 is ESD sensitive, Justify
Yes, the USRP-2901 is Electrostatic Discharge (ESD) sensitive.
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It contains sensitive electronic components such as ADCs, DACs, amplifiers, and highfrequency RF front-ends that can be easily damaged by static electricity.
Proper grounding and ESD protection (such as wearing a wrist strap and using ESD mats)
are required during handling to prevent permanent damage.
3. What does blinking green light indicate in USRP-2901?
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A blinking green light on the USRP-2901 typically indicates that the device is powered
on and operating normally, and it may also suggest active communication or data
transfer between the host PC and the USRP device.
4. What is the format of file created by GNU Radio and in which data type does USRP2901 process?
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GNU Radio typically saves data in binary format with extensions like .dat or .bin,
depending on the configuration.
The USRP-2901 processes data in complex 16-bit or 32-bit floating point (IQ data)
formats, depending on the interface and host software configuration.
5. How can you stop the obtained waveform?
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You can stop the waveform (signal acquisition or transmission) by:
o Stopping the flowgraph in GNU Radio (clicking the stop button).
o Halting(means stopping the execution of a running program or process) the script or
software running the SDR application (e.g., in LabVIEW or MATLAB).
o Disconnecting the USRP device or terminating its power/software link also
ceases waveform activity.