HF and Software Defined Radio: HDSDR + USRP + GNU Radio + RFMap

This is a tour through using SDR to receive HF: http://wiki.spench.net/wiki/RF http://spench.net @spenchdotnet http://twitter.com/spenchdotnet HF with ultra-cheap-SDR RTL2832U-based DVB-T USB dongle: http://www.youtube.com/watch?v=5y2XMvrlmiA Files are now available on BitTorrent: http://spench.net/download/HF-SDR.torrent Please keep seeding! To use the recordings in GNU Radio, please apply this patch to your WAV File Source first: http://wiki.spench.net/wiki/GNU_Radio_Patches#gr_wavfile-auxi Otherwise you will encounter a 'runtime error' as the original code doesn't like HDSDR recordings. Transmission types covered: Whistlers Ionosondes Weather fax (WEFAX) Flight Information Service Link 11 (TADIL A) RTTY Over-the-Horizon RADAR STANAG 4285 Sweepers Unknown sweeping 'blocks' ACORN (Ocean RADAR) ALE (Automatic Link Establishment) OFDM (Orthogonal Frequency Division Multiplexing) DRM (Digital Radio Mondiale) Resources: http://maps.spench.net/rf/ http://wiki.spench.net/wiki/USRP_Interfaces http://wiki.spench.net/wiki/BorIP http://wiki.spench.net/wiki/OFDM http://www.lucabarbi.it/oldweb/th/TH_Link11.pdf http://www.wavecom.ch/onlinehelp/WCODE/default.htm#!worddocuments/stanag42851.htm http://imos.org.au/acorn.html http://www.codar.com http://en.wikipedia.org/wiki/Automatic_link_establishment http://en.wikipedia.org/wiki/Whistler_(radio) ----------------------------------------------------------------------------------------------------- Links to SDR software packages: * You can use the cross-platform GNU Radio (used to do the pop-up analyses). It's a very powerful signal processing framework, so you can do almost anything in it: http://gnuradio.org/ * HDSDR (the main one) runs on Windows: http://www.hdsdr.de/ * Sigmira (used for STANAG, but also does all the standard analog modes+some other digital ones) is cross-platform: http://www.saharlow.com/technology/sigmira/ * There are other Linux/cross-platform ones like: http://napan.ca/ghpsdr3/ http://www.sm5bsz.com/linuxdsp/linrad.htm -----------------------------------------------------------------------------------------------------