USB Communication Duplex MMDVM Hotspot Support P25 DMR YSF + OLED Screen + 2PCS Antenna + Case 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 Pi's 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 part is 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 display 1x MMDVM HotSPOT Module1x Case2x 433Mhz antenna 2x PinsSome screws