TEENSY MMDVM Multi-Mode Digital Voice Modem

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TEENSY MMDVM Multi-Mode Digital Voice Modem is a combined hardware and software modem to handle all amateur digital voice modes. Supports DMR, DMR (DMO), D-Star, System Fusion and P.25 Digital Formats. All modes other than DMR can be used in simplex or duplex mode. Designed for MMDVM Open Source Firmware Compatibility.

TEENSY MMDVM is based on the Teensy 3.2 (or optional 3.6) processing architecture and includes Repeater/Radio interfacing hardware consisting of op-amp low pass filters, 20 Turn Trimpots for TX and RX Level Adjustment and LED Status Indicators for Mode of Operation and Radio Status. The Radio Interface Signals are EMI Filtered using SMT chip ferrite beads for suppression of high frequency noise.

A USB 2.0 Micro-B 5 pin connector is provided for communicating with the MMDVM Host Computer (RPI2 or RPI3 running MMDVM host software) and powering the TEENSY MMDVM modem.

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