USB Duplex MMDVM Hotspot Support P25 DMR YSF NXDN Pi + Raspberry Pi

Features USB port design 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 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 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 Specifications Color Black TransparentMaterial PCB AcrylicSize 65 75 20mmNote The firmware is pre loaded Please do not upgrade the firmware by yourself Package Included Fully assembled and tested Jumbo Spot RTQ 1x OLED display1x Raspberry pi zero1x MMDVM HotSPOT Module1x 8G TFT card1x Case2x 433Mhz antenna