Amazon.com: Upgraded Duplex DMR Hotspot WLAN Ethernet Port Assembled Radio Station WiFi Digital Voice Modem Support DMR Dstar YSF P25 Fusion Antenna Raspberry Pi Model 2B Two Colors OLED 2 TimeSlots :
MMDVM Digital Trunk Board DMR C4FM Dstar P25 USB Repeater HotSPOT with OLED for Raspberry Pi
How to make a MMDVM Digital Repeater - N5AMD's Digital Voice Resource
MMDVM Digital Trunk Board DMR C4FM Dstar P25 USB Repeater HotSPOT with OLED for Raspberry Pi
Intro to Multi-Mode Repeaters « Silvercreek Amateur Radio Association
Working D-Star With Your Own Hot Spot
New MMDVM Digital Repeater kit Support Pi 4B DMR/YSF/P25/NXDN/DSTAR/POCSAG | eBay
Digital Repeater PCB Kit For Pi 4B DMR/YSF/P25/NXDN/DSTAR/POCSAG MMDVM Mode | eBay
Raspberry Pi for Digital and D-Star Setup Cookbook | Gateway Amateur Radio Club