This document discusses software defined radios (SDRs) and how to set them up for use on Windows and Linux systems. It focuses on using low-cost SDRs like the RTL-SDR USB dongle and software like SDRSharp and GQRX. It provides basic setup instructions for Windows that involve downloading drivers, using Zadig to replace drivers, and then being able to open SDRSharp to start capturing signals. The document also discusses improving SDRs by receiving multiple frequencies, expanding their range, and reducing interference and noise. It includes demonstrations of using SDRs and investigating domestic alarm frequencies.

1. SPENDABIT
LISTENALOT
PLAYINGWITHLOWCOSTSDRS
By /
UPM TASSI 2016
Carlos García @cg_sanchez
Carlos García www.webmip.es @cg_sanchez
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2. #WHOAMI
CARLOSGARCÍASANCHEZ
@cg_sanchez
Software/web dev
+ Security researcher
+ DIY
+ GEEK
Carlos García www.webmip.es @cg_sanchez
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3. SDR?
Software Defined Radio.
Carlos García www.webmip.es @cg_sanchez
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4. TYPESOFSDRS
... and prices :)
Carlos García www.webmip.es @cg_sanchez
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9. WINDOWS
Zadig
HDSR / SDRSHARP
Carlos García www.webmip.es @cg_sanchez
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10. LINUX
RTL-SDR (Osmocom)?
GQRX / CUBICSDR
Carlos García www.webmip.es @cg_sanchez
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11. BASICSETUPONWINDOWS
USAGEWITHSDRSHARP
SDRSharp is the most common software for use the
RTL-SDR dongle.
Download the software on the AIRSpy website.
Extract on your PC.
Run the bat file (install-rtlsdr.bat)
After that you should have the required files ready
Carlos García www.webmip.es @cg_sanchez
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12. BASICSETUPONWINDOWS
USAGEWITHSDRSHARP
Please ensure that you have the rtlsdr.dll and
zadig.exe files.
Plug the USB-TDT dongle.
IMPORTANT! You must check that not install the
drivers for TV receiver use.
Run the zadig.exe software.
Select the interface and press replace driver.
Carlos García www.webmip.es @cg_sanchez
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14. BASICSETUPONWINDOWS
USAGEWITHSDRSHARP
AFTERTHATYOUCANOPENTHESDRSHARPANDSTART
CAPTURING.
Carlos García www.webmip.es @cg_sanchez
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15. DEMO
Carlos García www.webmip.es @cg_sanchez
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16. IMPROVINGOURSDR
Multiple frequencies
Little range
Interferences
Noise
Carlos García www.webmip.es @cg_sanchez
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27. LOOKINGFOR
FREQUENCIES
Normative
Websites
Technical data sheets
Carlos García www.webmip.es @cg_sanchez
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34. DEMO
Carlos García www.webmip.es @cg_sanchez
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46. DOMESTICALARMS
"PROFESSIONALS"
Carlos García www.webmip.es @cg_sanchez
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