3DR Radio Telemetry 433Mhz 915Mhz 100MW/500MW/1000MW Air and Ground Data Transmit Module OTG cables for APM 2.8 /Pixhawk 2.4.8

A SiK Telemetry Radio is a small, light and inexpensive open source radio platform that typically allows ranges of better than 300m “out of the box” (the range can be extended to several kilometres with the use of a patch antenna on the ground). The radio uses open source firmware which has been specially designed to work well with MAVLink packets and to be integrated with the Mission Planner, Copter, Rover and Plane.

The radios can be either 915Mhz or 433Mhz and you should purchase the model which is appropriate for your country/region.

https://ardupilot.org/copter/docs/common-telemetry-radio-regional-regulations.html#common-telemetry-radio-regional-regulations

Radio Telemetry

A SiK Telemetry Radio is one of the easiest ways to setup a telemetry connection between your Autopilot and a ground station.

A SiK Telemetry Radio is a small, light and inexpensive open source radio platform .The radio uses open source firmware which has been specially designed to work well with MAVLink packets and to be integrated with the Mission Planner, Copter, Rover and Plane.
The radios can be either 915Mhz or 433Mhz and you should purchase the model which is appropriate for your country/region.

Frequency: 433MHz or 915MHz

Power: 100MW, 500MW, 1000MW

• Very small size

• Light weight (under 4 grams without antenna)

• Available in 915MHz or 433MHz (v2 only) variants

• Receiver sensitivity to -121 dBm

• Transmit power has 100MW,500MW,1000MW

• 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 cycle

• Built-in error correcting code (can correct up to 25% data bit errors)

• Demonstrated range of several kilometres with a small omni antenna

• Can be used with a bi-directional amplifier for even more range

• Open source firmware

• AT commands for radio configuration

• RT commands for remote radio configuration

• Adaptive flow control when used with APM