Transceiver "Wolf". DDC-DUC SDR Tranceiver project https://ua3reo.ru/tag/transiver-ua3reo/
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VP-Digi is a functional, cheap, easy to assemble and configure STM32-based APRS digipeater controller with built-in KISS modem.
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ibdspl-2.0 — opensource cross-platform digital signal processing algorithm library, written in C language. Distributed under LGPL v3 license. This allows to use this library in all applications with dynamic linking.
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csdr is a command line tool to carry out DSP tasks for Software Defined Radio. It can be used to build simple signal processing flow graphs, right from the command line.
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