2019 Mmdvm repeater multi-mode digital voice modem for raspberry pi arduino support ysf d-star dmr fusion p.25 | Fruugo KR
Kit I2C-Repeater for Raspberry PI - horter-shop.de
Mini Digital Voice Repeater with USB Interface, Digital Trunk Board with Expansion Board, Suitable for Raspberry Pi GS68 MMDVM DMR Repeater : Amazon.ca: Electronics
Turn a Raspberry Pi into a Wi-Fi access point or repeater