3DR 500MW Radio Telemetry Kit 915Mhz 915 Kit Air and Groud Data Transmit Module for APM2.6 APM2.8 PX4 Pixhawk

915Mhz 3DR 500MW Radio Telemetry Kit : Support OTG of Android Cellphones and computer OTG. Antenna is 5.8G.
3DR telemetry 915mhz set for multiwii setting. PLUG AND PLAY. Pre-configered and tested to 115200 BAUD rate, and all other settings needed.
The 3DR Radio telemetry system is designed as an open source Xbee replacement radio set, longer range and superior performance to Xbee radios.
The radio is a 2-way half-duplex wireless communication system with a standard TTL UART interface, based on HopeRF's HM-TRP data link modules, and custom firmware that improves upon the modules' original features and performance.
The SiK firmware includes a bootloader that permits radio firmware upgrades over the serial interface, and radio firmware with configurable parameters.
It works with standard APM and Pixhawk flight controllers, such as APM 2.6 2.8 Pixhawk 2.4.7 Pixhawk 2.4.8.