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1x RFD 868x Modem
Product Description
RFD868x New Features:
·
New Processor, ARM 32 bit core.
·
Air data rate: 500kbit/s.
·
AES Hardware accelerated encryption. *Fully working*
·
RC PPM Passthrough with telemetry at the same time.
·
Fully ESD protected + filtered - Every IO port is protected and
filtered.
·
Original SiK point to point, multipoint firmware implemented.
·
Asynchronous multipoint firmware, *Beta release*
Features:
·
Long range >40km depending on antennas and GCS setup *80km
demonstrated by Edge Research labs on a balloon !, 57km in India, on Dipoles.
·
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.
·
License free use in Australia, Canada, USA, NZ
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
·
Power 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 RFD900 radios is
supported by APM Planner.
The default settings are at 57600 baud, N, 8, 1, and 64k air
data rate.
The
RFD868/900x manual is here: RFD900x
Manual
The
RFD868/900x SiK software manual is here : RFD900x
Peer-to-peer Manual
Software
features include:
·
Frequency hopping spread spectrum (FHSS)
·
Transparent serial link
·
Point to Point, or Multipoint networking
·
Configuration by simple AT commands for local radio, RT commands
for remote radio
·
User configurable serial data rates and air datarates
·
Error correction routines, Mavlink protocol framing (user
selectable)
·
Mavlink radio status reporting (Local RSSI, Remote RSSI, Local
Noise, Remote Noise)
·
Automatic antenna diversity switching on a packet basis in
realtime
·
Automatic duty cycle throttling based on radio temperature to
avoid overheating
Compliance
:
The RFD868 is designed to be compliant with the following
standards:
·
FCC Part 15.247 (Frequency hopping and digitally modulated
intentional radiators)
·
AS/NZS 4268:2012 (Radio equipment and systems - short range
devices)
The modem is designed for system integrators who will integrate
the modem into their own projects and product prototypes. The user is
responsible for compliance with local regulations for radio transmitters.