Tagged: websdr

Hak5: Online RTL-SDR WebSDR’s with OpenWebRX

On this episode of Hak5 (a popular hacking and security themed YouTube channel) Darren and Shannon discuss OpenWebRX, a SDR web broadcasting and remote control tool that is compatible with the RTL-SDR. OpenWebRX is similar to the WebSDR software in that it allows people to connect to remote SDR’s on the internet and tune them to any station within their currently set bandwidth frequency range. Many already functioning online OpenWebRX receivers can be found in the database at sdr.hu.

In the first part of the video the Hak5 team explore the worldwide SDR’s on the sdr.hu website. Then in the second part they show a demonstration on how to install the OpenWebRX software in order to create a SDR broadcast with an RTL-SDR.

FREE SDR receivers all around the world with OpenWebRX - Hak5 1916

New Web Based RTL-SDR Remote Control Software: YouSDR

Recently Kristian, a reader of our blog wrote in to let us know about a new software project he found that allows you to use your RTL-SDR remotely through a web interface. The web interface runs on Linux and uses mysql and the Apache server to work. Currently it can be used to access options for rtl_fm, rtl_tcp, dump1090 and can also be used to create an icecast audio stream.

The software can be downloaded from its Git at https://github.com/sixuniform/yousdr. The instructions on the GitHub page show how to set it up on a Raspberry Pi running Raspbian, but the instructions should also be valid for other Linux distributions. As the software is new the authors are welcoming any improvements and feedback.

Some similar web based RTL-SDR remote control software that you may be interested in includes WebRadio and rtl_fm_python.

The YouSDR web interface.
The YouSDR web interface.

New (Work In Progress) WebRadio Software for the RTL-SDR Released

Mike Stirling has just released a still in-development version of his Linux based WebRadio software, which supports the RTL-SDR. WebRadio allows someone to connect to a remote RTL-SDR device via a web interface over the internet, much like WebSDR.

There is an installation guide here.


I was able to compile, install and run the software, but there were a few issues that required resolving.

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RTL-SDR Direct Sampling Compared with WebSDR

YouTube user opilarczyk has posted a video comparing HF performance of the rtl-sdr with the direct sampling mod at 7MHz with WebSDR, an online SDR streaming site. The comparison shows how the direct sampling mod is extremely susceptible to broadcast FM interference.

RTL-SDR gqrx direct sampling vs WebSDR on rtl2832u