Pager Traffic with RTL SDR, PDW and HDSDR

In this video Superphish shows a RTL2832 based dongle being used to receive and decode POCSAG/FLEX pager data. Make sure you view the video in 720P to see the text clearly.

Note: This is likely illegal in most parts of the world, especially sharing what was received.

GQRX Using an RTLSDR to Receive Temperature Sensor Data

“Monitoring 433.9 MHz – picking up plenty of local weather temperature sensors and the likes. Using a newsky dvb-t tuner and a modified version of gqrx that supports rtl sdr. Antenne is a 2m/70cm in my attic.” — trylleklovn

SATCOM pirates received via RTLSDR

“Using gqrx with my newsky dvb-t dongle (rtlsdr) to listen to the geostationary SATCOM which is frequently utilized by brazil radio pirates.” – trylleklovn

SDR# With RTL-SDR Support

“SDR# (read SDR Sharp) is a simple, intuitive, small and fast PC-based DSP application for Software Defined Radio. It’s written in C# with both object design correctness and performance in mind. The main purpose is to offer a simple proof of concept application to get hands into DSP techniques. It supports SoftRock, FiFiSDR, FUNcube Dongle, SDR-4 [,rtl-sdr] and any sound card based SDR front end.” —


SDR# (SDR-Sharp) versions 244+ (dev) have added support for RTL based SDRs supported by ExtIO. Extract the download link to the same folder you installed ExtIO to. If you haven’t done that yet, try this guide.

Download Link

To use the software with an RTLSDR dongle, Select USRP under the ‘Front End’ drop down box beside the Front End button. Then use the now active ‘Front End’ button to show the ExtIO GUI. Don’t forget to add your device hint!

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