Because of Raspberry Pi 3B/4B expensive and out of stock, please consider buy the MMDVM Hat only https://www.bi7jta.org/cart/index.php?route=product/product&product_id=50

Raspberry PI 3 Model B, Nextion T serial are used here, unless specified .

DIY project, not support unconditional returns, please make sure you have enough patience to use this set of open source development kit, have question you can contact bi7jta@gmail.com ,I will use Remote desktop: TeamViewer, Microsoft Teams, help you make it work, if necessary.

Features:

Support MMDVM mode DMR/YSF/P25/NXDN/DSTAR/POCSAG
Double timeslot in DMR mode, act as a mini Digital voice repeater.
Support VHF/UFH, frequency range: 144MHz-148MHz, 420MHz-475MHz,842MHz-950MHz, Avoid satellite frequency: 145.8~146 MHz , 435~438.000 MHz
High-quality ECS TCXO, stable with low BER.

Shipping including:

1x Raspberry Pi 3 Model B, WiFi 2.4G,

1x Nextion display T serial,

1x Acrylic L case,

1x SD card 8GC11,

All full assemble and software, firmware flash the newest, pre-configurate with default settings.

Option: Raspberry Pi 4B need add money, will support WiFI5G.

User‘s Manual

PDF Download https://www.bi7jta.org/files/UserManuals/

Youtube Page https://www.youtube.com/wintershuang