Rpi-websdr

WebSDR is a Software-Defined Radio receiver connected to the internet, allowing many listeners to listen and tune it simultaneously. SDR technology makes it possible that all listeners tune independently, and thus listen to different signals; this is in contrast to the many classical receivers that are already available via the internet.

http://websdr.org/

Setup websdr on Raspberry Pi

The installer package contains binaries for x86 and ARM. The latter can be used to run on RPi hardware (ARM6).

• soundcard setup

remove all pulseaudio things as it is plainly confusing

use an external sound card that can capture STEREO audio

• Softrock 40 SDR receiver

hook up to 40m antenna and send audio out (I/Q) to sound card

• java runtime environment