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

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Published on Mar 17, 2012

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=5y2XMv...

Files are now available on BitTorrent: http://spench.net/download/HF-SDR.tor... 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...
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_Inte...
http://wiki.spench.net/wiki/BorIP
http://wiki.spench.net/wiki/OFDM

http://www.lucabarbi.it/oldweb/th/TH_...
http://www.wavecom.ch/onlinehelp/WCOD...
http://imos.org.au/acorn.html
http://www.codar.com
http://en.wikipedia.org/wiki/Automati...
http://en.wikipedia.org/wiki/Whistler...)

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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/si...

* There are other Linux/cross-platform ones like:
http://napan.ca/ghpsdr3/
http://www.sm5bsz.com/linuxdsp/linrad...

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