Duplex MMDVM Hotspot Support P25 DMR YSF + OLED Screen + 2PCS Antenna + USB Communication For Raspberry Pi

Features High performance 32 bit ARM processor Fully tested Supports DMR P 25 D Star and System Fusion Onboard LEDs to show status Tx Rx PTT Mode Up to 10mW RF power SMA antenna connector Antenna included Mounts cleanly on all current Raspberry Pis including the Pi Zero The firmware is pre loaded and is easily upgraded via software Open source 3D printable case available Uhf 430 450 MHz 433mhz and 900MHzVHF 144 220 Opera FREQInstall the firmware with bootloader support for USB connection If you want to use the device via USB port you have to install a bootloader and build the firmware with bootloader support As the raw device cannot be used with USB you have to use a USB serial adapter or STlink deviceThe upper partis TX the lower is RX antenna UHF VHFSMA antennaModem select STM32 HS GPIOSet TX frequency RX frequencyTX RX frequency had better 10M or more apart SLOT1 SLOT2 support Note The firmware is pre loaded Please do not upgrade the firmware by yourself Package Included 1x OLED display1x MMDVM HotSPOT Module2x 433Mhz antenna2x PinsSome screws