Standard Range Radio Telemetry Modem Kit 915Mhz for use with APM 2.5 / 2.6

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Ideal way to setup a telemetry connection between your APM and a ground station. Small, inexpensive and with great range, the radio set uses an open source firmware which allows us to do things that cannot be done with other radios.

Radio Features
- Very small size
- Light weight 
- Receiver sensitivity to -121 dBm
- Transmit power up to 20dBm (100mW)
- 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
- Builtin error correcting code (can correct up to 25% data bit errors)
- Demonstrated range of up to 800m+ or greater with directional yagi antenna (see other listng on this web site)
- 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
- Based on HM-TRP radio modules, with Si1000 8051 micro-controller and Si4432 radio module

Connecting your Telemetry Devices;
Important note: You cannot connect via the radios when your APM 2 is also connected via USB (they share the same port). Make sure you disconnect your USB cable from the APM 2 board before attempting a wireless connection.