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

Features:- Up to 10mW RF power.- Open source 3D printable case available.- Uhf 430-450 MHz,433mhz and 900MHz.- High performance 32-bit ARM processor.- SMA antenna connector,Antenna included.- Supports DMR, P-25,D-Star and System Fusion.- Onboard LEDs to show status (Tx,Rx,PTT,Mode).-The firmware is pre-loaded and is easily upgraded via software.- Mounts cleanly on all current Raspberry Pi's including the Pi Zero.VHF 144 220 Opera FREQInstall the firmware with bootloader support for USB connectionIf 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.Notice:- Without shell.- Not include the raspberry pi.- The firmware is pre-loaded.Please do not upgrade the firmware by yourself.Package included:1 x MMDVM HotSPOT Module2 x Antenna