Features
Independent signal amplifier 1W
Same design, both modules can be used either on the groundstation or in the air
Both come with Micro USB TTL port
Equips with 3 kinds of cable for APM and Pixhawk(5P for Apm,6P for Pixhawk) OTG
Use a small omnidirectional antenna up to several kilometers
Bidirectional amplifiers available for greater range
Open source firmware
Specification
CP2102 high quality USB to TTL chips
433 MHz
Receiver sensitivity to -140 dBm
Transmit power up to 30dBm (1000mW 9600 bps)
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 kilometers 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
Based on HM-TRP radio modules, with Si1000 8051 micro-controller
Very small size(L53mm W25mm H12mm)
Light weight (under 11 grams without antenna)
Package Included
1 x Air Module
1 x Groudstation Module
1 x Apm Cable 5P
1 x Pixhawk Cable 6P
1 x Otg Cable