Processor: Powered by a 32-bit ARM microcontroller, ensuring fast processing and efficient data handling.
Range: Designed for ultra-long-range communication, often reaching distances of up to 40 km or more (depending on antenna setup and line-of-sight conditions).
Data Rate: Supports various data rates, allowing for flexibility in balancing range and throughput.
Protocols: Typically supports transparent serial communication and may integrate with MAVLink for UAV telemetry.
Power Output: Adjustable transmission power, usually up to 30 dBm (1 Watt).
Features:
Long range >40km depending on antennas and GCS setup
2 x RP-SMA RF connectors, diversity switched.
1 Watt (+30dBm) transmit power.
Transmit low pass filter.
> 20dB Low noise amplifier, high IP3.
RX SAW filter.
All I/O ESD protected and filtered.
Re implemented SiK and Multipoint SiK firmware, field upgradeable, easy to configure.
Small, light weight.
Compatible with 3DR / Hope-RF radio modules.
Interfaces:
RF : 2 x RP-SMA connectors.
Serial: Logic level TTL (+3.3v)
Power: +5v, ~800mA max peak (at maximum transmit power)
GPIO: 6 General purpose IO (Digital, ADC, PWM capable).
Specifications:
Frequency Range: 868-869 MHz
Output Power: 1W (+30dBm), controllable in 1dB steps ( +/- 1dB @=20dBm typical )
Air Data transfer rates: 4, 8, 16, 19, 24, 32, 48, 64, 96, 128, 192 and 250, 500 kbit/sec ( User selectable, 64k default )
UART data transfer rates: 9600, 19200, 38400, 57600, 115200, 400k, 921k baud ( User selectable, 57600 default )
Output Power: 1W (+30dBm)
Receive Sensitivity: >121 dBm at low data rates, high data rates (TBA)
Size: 30 mm (wide) x 57 mm (long) x 12.8 mm (thick) – Including RF Shield, Heatsink and connector extremeties
Weight: 14.5g
Mounting: 3 x M2.5 screws, 3 x header pin solder points
ComPower Supply: +5 V nominal, (+3.5 V min, +5.5 V max), ~800 mA peak at maximum power
Temp. Range: -40 to +85 deg C, tested operational from -73 to +123 deg C.
Software / GCS Support:
The software solution is an open source development called “SiK”. It has been re implemented to suit the new processor architecture available on the 32bit ARM processor core. A boot loader and interface is available for further development and field upgrade of the modem firmware via the serial port.
Most parameters are configurable via AT commands, Eg. baud rate (air/uart), frequency band, power levels.
Integrated support for configuring the RFD868 radios is supported by APM Planner.
The default settings are at 57600 baud, N, 8, 1, and 64k air data rate.
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