Pseudonymous security researcher Aaron “Cemaxecuter” has shared images of his DragonOS software-defined radio-focused Linux distribution geared up for portable use – courtesy of a Valve Steam Deck handheld games console. Jacek’s post is available on the MyriadRF forum. Jacek’s approach sees the installation of Kali Linux atop the phone’s default Android operating system, which is then used to install GNU Radio, SoapySDR, LimeSuite, and a VNC client – required in order to provide a graphical user interface, with Jacek noting that otherwise “everything works from the terminal, so without GUI – for some it is an advantage, for others a disadvantage.” If everything is planned and configured, OnePlus 7 Pro + SDR is a much more ambitious solution than PortaPack. “My LimeSDR Mini, connected to OnePlus 7, receives, records, and transmits signals,” Jacek writes of his mobile-SDR setup, “and is powered only from the phone. MyriadRF community member Jacek has written a brief guide to using a LimeSDR Mini on an Android smartphone, installing the Kali Linux distribution in order to gain access to a full suite of software utilities. “In addition to which there are the COTS subsystems for RF test and measurement, CI host and Ethernet switch.”Īdditional details are available in Andrew’s update, while the CI hardware platform is documented on the LibreCellular website. “CICON, CI Controller based on PC Engines APU2E4 SBC + LibreCellular CONIO-A CIRAN1, LimeSDR-USB + Intel NUC base station CIRF4x16, 4:16 RF splitter/combiner network with digitally controlled RF attenuation CIMODS8, 8X LTE modem bank CICLKD, reference clock distribution CIPSU, 12VDC (50A) + 5VDC (21A) combined PSU and PDU. “Hardware assembly has been completed of the following custom subsystems,” Andrew Back writes in the project’s latest update. Now, the project has reached the impressive milestone of completing the first build and initial documentation for a continuous integration (CI) system – including a LimeSDR USB-based reference-design base station. Launched in May last year, LibreCellular is an effort which aims to provide a fully-tested and validated hardware platform and software stack for 4G Long Term Evolution (LTE) networking building atop open-source projects including srsRAN (formerly srsLTE) and Open5GS, OsmoGSMTester, the LimeSDR family, and LimeRFE. The LibreCellular project has reached the milestone of having a reference base station and related continuous integration (CI) subsystems completed with initial documentation, bringing it a step closer to its goal of open cellular communication for all.
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