Using a PC sound card to receive VLF radio signals

Just connect an antenna to your computer's microphone input, and you can receive VLF (Very Low Frequency) radio signals! A sound card (or built-in sound chip) with a recording sampling rate of at least 96 kHz is recommended.

Example of using this method to receive VLF signals from Russia and Europe: http://www.youtube.com/watch?v=fKSOoZ2vhvo

SDR Sharp software (for Windows) to receive and record VLF (and many other) radio signals: http://sdrsharp.com/#download Similar SDR (Software Defined Radio) applications are available for Linux and Mac OS.

Lists of VLF stations: http://sidstation.loudet.org/stations-list-en.xhtml http://www.smeter.net/stations/vlf-stations.php

Common sources of radio interference and recommended solutions: http://www.ccrane.com/!wcjHVrOwu6BDBDjo39xwNw!/AM-Antennas

About the accidental recording of VLF station GBR (16 kHz) contained on Mike Oldfield's "Tubular Bells" album: http://alancordwell.co.uk/personal/index.php http://gkircher.stormloader.com/vlfcd/ http://en.wikipedia.org/wiki/Rugby_Radio_Station ... https://www.youtube.com/watch?v=L2W1x6Rb9hI