Assorted SDR Links

Here is a list of web sites that provide SDR kits. The list was compiled by K9VV.

http://http://www.sdr-cube.com/ (Transceiver)

http://www.crosscountryradio.co.uk/sdr_receiver.htm

http://www.elektor.com/magazines/2007/may/software-defined-radio.91527.lynkx

http://www.fernempfangsradio.de/start.html

http://www.pappradio.de/typo3/ (Starsite)

http://o28.sischa.net/fifisdr/trac (German FIFI project)

http://www.darc.de/distrikte/l/02/sdr/ (German LIMA-SDR project)

http://www.yoyodyneconsulting.ca/pages/SDR-Widget-lite.html (Transceiver)

http://www.kb9yig.com/

http://www.genesisradio.com.au/ (Transceiver)

http://www.nt7v.com/index.html

http://zao.jp/radio/soft66ad/ (Japan)

http://www.lazydogengineering.com (Transceiver)

http://www.sdr-kits.net/

http://py2wm.qsl.br/SDR/SDRZero-2.html

http://www.qrz.lt/ly1gp/SDR/

http://www.rfsystem.it/shop/ (Transceiver)

http://www.comsistel.com/Ciao%20Radio.htm

http://www.nti-online.de/edirabox.htm

http://wb6dhw.com/For_Sale.html UHF SDR

http://www.wb5rvz.com/sdr/ensemble/ (Transceiver)

http://users.skynet.be/myspace/mdsr

http://www.iw3aut.altervista.org/

http://www.wb5rvz.com/sdr/mobo43/

http://www.dh1tw.de/fa-sdr-trx-funkamateur-allband-sdr (Transceiver)

DXZone web page about SDR

The DXZone has a nice page about SDR, including many links to product information, technical information, and other relevant sites.

QuickSilver QS1R

Here's another SDR receiver that covers the HF radio spectrum and more:
"15 kHz through 55 MHz in its standard configuration and can be used in undersampling applications to 500 MHz"

A Youtube video shows it in action using SDR Max III software.

SoftRock SDR videos

IK1NPP has posted 5 Youtube videos that feature a SoftRock SDR receiver kit.

Modular Receiver for LF/VLF Bands

Larry Coyle, K1QW, published a 2-part article in QST (Nov & Dec 2008) that presents a high performance LF/VLF receiver design. The December portion of this article describes the use of a software defined radio I-Q detector module as part of the overall design. Larry gives a good high-level explanation of how the detector works, and also highlights the versatile DDS-60 that serves as the receiver's software-controlled VFO.

Perseus Receiver

The December 2008 issue of QST has a product review of the Microtelecom Perseus Software Defined Receiver. Its frequency range is 10 kHz to 30 MHz, and reception modes are SSB, CW, AM, FM. Since this receiver uses a high-speed ADC to convert the received RF signal to data, and derives the I and Q signal streams internally, it is able to interface with a PC via USB interface, rather than a sound card interface.

The Perseus is available from SSB Electronic USA.

SDR - Contesting & Bandscope

The DH1TW web site covers two topic areas that may be of interest to hams interested in exploiting SDR capabilities.

- A presentation about the applications of SDR for contesting incorporates a nice high-level summary of the technologies and SDR products that may facilitate contest activity.

- The implementation a 20 kHz wide bandscope using an inexpensive SDR kit connected to an IF stage of the FT-1000MP transceiver is documented.

The latter application is discussed regularly in Yahoo's Softrock-40 Interest Group for various receiver / transceiver brands and IF ranges.