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Speciel for kommende radioamatører

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The MMDVM is intended to be an open-source Multi-Mode Digital Voice Modem, which utilises the power of an ARM processor and a simple analogue interface board. It is aimed at the Arduino Due, Teensy 3.1/3.2 and mbed platforms, the only requirement for the hardware is to be ARM Cortex-M3, M4, or M7 based, and access to raw interrupts and ADC and ADC ports as well as digital signalling ports. For this reason the Raspberry Pi and similar single board computers are not being targeted as access to the raw I/O is mediated by the operating system kernel and does not provide the performance, nor does the hardware provide the necessary direct access to the I/O pins on the ARM processor. However such boards are very useful for hosting the interface of the modem to external networks such as ircDDB in the case of D-Star.

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