Software-defined radio (SDR) technology can be used for many interesting technical experiments. With listening only SDR you can do many interesting things, but having a SDR that can also transmit opens many new doors. Here are some interesting videos related to SDR and cyber security:
Universal Radio Hacker – Replay Attack With HackRF
Download here: https://github.com/jopohl/urh
Radio Hacking: Cars, Hardware, and more! – Samy Kamkar – AppSec California 2016
Hacking Car Key Fobs with SDR
Getting Started With The HackRF, Hak5 1707
Hacking Ford Key Fobs Pt. 1 – SDR Attacks with @TB69RR – Hak5 2523
Hacking Ford Key Fobs Pt. 2 – SDR Attacks with @TB69RR – Hak5 2524
Hacking Ford Key Fobs Pt. 3 – SDR Attacks with @TB69RR – Hak5 2525
Hacking Restaurant Pagers with HackRF
Software Defined Spectrum Analyser – Hack RF
Locating Cellular Signal with HackRF Spectrum Analyzer SDR Software
GSM Sniffing: Voice Decryption 101 – Software Defined Radio Series #11
How To Listen To Trunked Police Radio And Why Im Done
Transmitting NTSC/ATSC Video With the HackRF One and Gnuradio
Check also Using a HackRF SDR to Sniff RF Emissions from a Cryptocurrency Hardware Wallet and Obtain the PIN article.
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Tomi Engdahl says:
https://hackaday.com/2025/02/03/communicating-with-satellites-like-its-1957/
Tomi Engdahl says:
https://www.edn.com/partners-simplify-fpga-based-wireless-development/
Tomi Engdahl says:
https://hackaday.com/2025/02/11/a-tiny-tapeout-sdr/
Tomi Engdahl says:
https://hackaday.com/2025/02/13/budget-minded-synthetic-aperture-radar-takes-to-the-skies/
Tomi Engdahl says:
Octet Of ESP32s Lets You See WiFi Like Never Before
https://hackaday.com/2025/02/15/octet-of-esp32s-lets-you-see-wifi-like-never-before/
Most of us see the world in a very narrow band of the EM spectrum. Sure, there are people with a genetic quirk that extends the range a bit into the UV, but it’s a ROYGBIV world for most of us. Unless, of course, you have something like this ESP32 antenna array, which gives you an augmented reality view of the WiFi world.
According to [Jeija], “ESPARGOS” consists of an antenna array board and a controller board. The antenna array has eight ESP32-S2FH4 microcontrollers and eight 2.4 GHz WiFi patch antennas spaced a half-wavelength apart in two dimensions. The ESP32s extract channel state information (CSI) from each packet they receive, sending it on to the controller board where another ESP32 streams them over Ethernet while providing the clock and phase reference signals needed to make the phased array work. This gives you all the information you need to calculate where a signal is coming from and how strong it is, which is used to plot a sort of heat map to overlay on a webcam image of the same scene.
ESPARGOS: ESP32-based WiFi sensing array
https://espargos.net/
Develop and deploy WiFi sensing applications effortlessly: ESPARGOS is a phase-coherent ESP32 antenna array.
Tomi Engdahl says:
https://luaradio.io/
Tomi Engdahl says:
https://rftap.github.io/
https://security.stackexchange.com/questions/151487/how-to-connect-hackrf-to-wireshark