3DR Radio Telemetry 433MHZ Digital Transmission Compatible APM Compatible Pirates

Description

3DR Radio telemetry 433MHZ digital transmission compatible APM compatible pirates The the the 3DR radio is 3DRobotics set an ideal way telemetry connection between the APM and ground stations. Its small size, low price, range, using open source firmware that allows us to do some of the other stations can not do things. Radio characteristics the volume is very small Lightweight only 4 grams (excluding antenna) Selectable 915MHZ, 433MHZ or 868MHZ versions receiver sensitivity of -121 dBm transmit power of 20dBm (100mW) transparent serial link air data transfer rates of up to 250kbps The MAVLink protocol frames and status report Frequency Hopping Spread Spectrum (FHSS) adaptive time-division multiplexing (TDM) support the LBT and AFA configurable duty cycle Built-in error correction code (up to 25% of the data bit error correction) Use small omnidirectional antenna up to several kilometers range available in two-way amplifier gain greater range open source firmware AT command to configure the number of pass RT command remotely configure data-transmission APM uses adaptive flow control HM-TRP-based wireless module with microcontroller Si1000 8051 Si4432 wireless module