Digital Voice Transceiver
This Project began to explore the use of the DVSI AMBE 2020 voice compression chip and also the ADF7021 single chip VHF RF Transceiver from Analog Devices. It appeared that this radio could be made to talk D-Star and that turned into yet another adventure trying to fill in the many holes in the published “Open” D-Star Specification.
   Digital Voice Transceiver
For more detail Digital Voice Transceiver website
www.moetronix.com