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Helmut Göbkes, DB1CC: Entwicklung der SDR Generationen HiQSDR bis R2T2 (DARC WebSDR)

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Published on Mar 23, 2016

Based on the fine works of N2ADR we developed an open source SDR called HiQSDR, a full digital DUC/DDC Transceiver wich is used now all over the world by hams.

As a complete new development, a half year ago we started the Project "R2T2", a pure digital SDR transceiver with two independent digital RX and TX channels. This concept allows features like diversity, X-Phase operation, selective predistortion and much more to come.

The R2T2 concept make use of the new XILINX ZYNQ 7020 wich holds not only a big FPGA but also two powerful M9 Arm Cores to allow stand alone operation without external PC. The R2T2 is clocked by a precise, external syncable and free programmable ultra low jitter multi-Clock source up to 800 MHz. Supported by many powerful interfaces like ADC, LCD, HDMI, Audio DSP processors, Gigabit Ethernet and multiple USB connections, the R2T2 is a perfect base for SDR works and: its open source!

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