In order to understand what the utilization of the radio spectrum looks like in practice and to test the function of the new protocol in the future, we have developed a transportable SDR device (Software Defined Radio). The device is intended to record radio signals in the form of raw data (I/Q samples) for later analysis.
The use of standard components enables rapid, cost-effective development. We use a Raspberry Pi 4, a 512 GB SSD hard disk and an Airspy SDR dongle, which are housed together with a battery in a 3D-printed housing.
A display is mounted on an additional board specially developed for the device so that the user can see and control the status of the device, as well as a GPS module with an integrated antenna (top left) to link the recorded radio signals with precise time stamps.
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