During 2008-2009 we constructеd our own version of SDR-1000 transceiver based on information in internet, it uses DDS AD9854 from Analog Devices.
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Description
This project was very successful and the sound quality of the receive/transmit is incredible. This is a software radio, so to be able to function correctly you will need a PC and good sound card. We use as sound card the EMU 0404.