الوصف
- The 3DR Radio telemetry system is designed as an open source Xbee replacement radio set, offering a lower price, longer range and superior performance to Xbee radios. Very small size,light weight (about 4 grams without antenna). Transmit power up to 20dBm (500mW), air data rates up to 250kbps.
- Support for LBT and AFA, 915Mhz frequency band. 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.
- Adaptive flow control when used with APM. USB Interface reciever. Connect the PC tablet. The SiK firmware includes a bootloader that permits radio firmware upgrades over the serial interface, and radio firmware with configurable parameters. Firmware upgrades and configuration are fully supported in the APM Mission Planner.
- Based on the HopeRF HM-TRP radio module, featuring an SiLabs Si1000 RF micro controller and Si4432 wireless module. It is availabl in 433Mhz; and in the following configurations: serial board (for the air) and USB (for the ground). Configuration is also possible through AT commands.
- Free USB cable, use it to connect Android phone and tablet. Please note that it is up to you to make sure you are allowed to use these radio modules in your country. These devices can be used as short range licence expemp devices the UK under ESTI EN300 220, please refer to Ofcom IR2030 document, page 17. You will need to configure the device to comply with your countries regulations
Specifications 433MHz and 915MHz for opotional. Very small size Light weight (under 4 grams without antenna) 433-434.79MHzReceiver sensitivity to -118 dBm Transmit power up to 20dBm (500mW) Transparent serial link Air data rates up to 250kbps MAVLink protocol framing and status reporting Frequency hopping spread spectrum (FHSS) Adaptive time division multiplexing (TDM)Support for LBT and AFA Configurable duty cyclev - Built in error correcting code (can correct up to 25% data bit errors)Demonstrated range of several kilometers with a small omni antenna Can be used with a bi-directional amplifier for even more rangeOpen source firmware AT commands for radio configuration RT commands for remote radio configuration Adaptive flow control when used with APM Based on HM-TRP radio modules, with Si1000 8051 micro-controller and Si4432 radio modulePackage includes:915MHZ module group * 2 (regardless of ground or air) 2DB antenna * 2 Pixhawk dedicated silicone wiring * 1 Apmpro / Pixmini Silicone Wiring * 1 APM dedicated 5P terminal * 2 OTG line * 1Software PC:Mission Planner Android:Droidplanner
