SDR

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DCC Day Two - SDR Cube

George Heron N2APB and Juha Niinikoski, OH2NLT - SDR Cube: A portable SOftware Defined Radio Utilizing An Embedded DSP Engine for Quadrature Sampling Transceivers

George and Juha have designed a complete SDR transceiver in a 4" x 4" cube.  It contains a Softrock RxTx v6.3 and an embedded DSP controller a graphic LCD display and all controls.

It also allows connecting the NUE-PSK Digital Modem for various digital data modes.

They expect to cell kits and assembled versions sometime in the next couple of months.

More info at: https://www.sdr-cube.com

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DCC Day Two - Bidirectional Low Frequency Transverter

Alex Schwarz, VE7DXW - Bidirectional Low Frequency Transverter (Bi-LIF) Computer Interface for Demodulation and Modulation of Radio SIgnals

Alex outlined a Software/Hardware system that allows you to use current or older HF gear with an SDR based replacement for the original mod/demod section of the rig.

Essentially what he's doing is tapping into the receiver IF and using SDR techniques to provide demodulation on receive, and also tapping into the transmitter section to modulate.   Couple this with PC software to control the radio and do the mod/demod and you have some of the benefits of SDR applied to older radios.

Boards and kits available.

More info at: http://kenai.com

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Last two talks of the day

I skipped a couple of the early afternoon talks but was back for the last two of the day.

My netbook battery was exhausted so these are from memory and the DCC printed proceedings.

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