Update 2024.6.17 : for Raspberry Pi 4B + TJC version: 

https://www.bi7jta.org/shop/duplex-model-a-alc-spot-nx-mmdvm-101#attr=358,361

** Because of Raspberry Pi 3B/4B expensive and out of stock,  I use NanoPi NEO 512M replace Raspberry Pi

** It is very hard to shipping 7inch L case to long distance, so you could consider the 7inch 3D case with battery version, new link:

https://www.bi7jta.org/shop/duplex-bi7jta-spot-model-a-3d-white-2-4inch-34

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 TCXO, stable with low BER.

Shipping including:

1x NEO Pi 512M, USB WiFi 2.4G, LAN

1x Nextion display T serial,( TJC Not Nextion)

1x Acrylic L case,

1x SD card 8GC11,

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

User‘s Manual 

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

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

How to Install NextionDriver for Model 10 

Name: Acrylic "L" Case Duplex hotSPOT for Nextion

Wiki for Setting guide

https://www.bi7jta.org/wiki/

PAYMENT : Paypal  

More Style MMDVM case and display see also my new website: https://www.bi7jta.org/shop

73!