RFD868ux

The RFDesign 868uX is a long range telemetry radio modem, covering the 865-870 MHz frequency band. 

Designed for long range serial communications applications with stringent requirements on size and weight.

Designed, tested and inspected in Australia; the EU variant is compliant with EU regulations. 

RFD868x RF modem
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Models:

                  

Modem Model 

Maximum Transmit Power(dBm) 

Frequency Band/s (MHZ) 

Max No. of Channels 

Duty Cycle (%) 

868ux 

30 

865-870 

8 

100 

868ux-EU (Europe) 

27/7 

869.7-870 

1 

10/100 

868ux-IND (India) 

30 

865-867 

7 

100 

Please note:  The EU certified version of the 868 modems have limited operation modes, a low power (5mW) full duty cycle mode, and a high power (500mW) low duty cycle mode. The high power mode will significantly reduce data throughput due to the duty cycle restrictions. These conditions are a requirement of compliance with EU regulations and CANNOT be altered. 

 

Key Features:

 

  • A digital modem for long-range data transmission in applications with strict weight and size limitations.
  • Compatible with the MAVLink message protocol.  
  • Maximum Air data rate: 224kbit/s. 
  • AES Hardware accelerated encryption.  
  • Optional RC PPM or SBUS Passthrough. 
  • GPIO Pin Mirroring capability. 
  • ESD-protected and filtered IO pins 
  • Firmware options available to achieve several network topologies including point-to-point SiK and Asynchronous mesh. 
  • User updateable firmware and parameters
  • Smallest, lightest radio modem in class. 
  • License-free use in India and EU (IND and EU variant).
  • Compatible with x series modems.

Note:

  • The ux and x series modems are not compatible with older "a" or “+” series modems . 

Interfaces:

 

  • RF : 2x u.FL RF connectors 
  • Serial: Logic level TTL (+3.3V) 
  • Power: +5v, ~1A max peak (at maximum transmit power) 
  • GPIO: General purpose IO.  

Compliance:

 

  • Regional version modems are compliant with regional regulation
  • NDAA compliant

The RFD868ux-EU is compliant with the following standards:

  • EN300 220 V3.1.1
  • EN301 489-3 V2.1.1
  • IEC 62368-1:2014

Note:

  • Regionally locked version of the modems may restrict or limit the performance and available parameter settings compared to the unlocked modems.
  • Ultimately it is up to the user to identify the radio frequency regulation applicable to their areas of operation and ensure their modems parameters are set correctly.

Specifications:  

 

Air Data transfer rates available: 

12, 56, 64, 100, 125, 200, 188 and 224 kbit/sec (User settable depending on firmware and region variant, 64kbit default)* 

UART data transfer rates: 

1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 1200000 baud (User settable, 57600 default)* 

Output Power: 

1W (+30dBm) 

Receive Sensitivity: 

>-97 dBm at 12kbps*

Size: 

25 mm (wide) x 33 mm (long) x 10.4 mm (deep) - Including RF Shield, PCB and Heatsink. 

 SMT Version 21 mm (wide) x 29 mm (long) x 4.2mm (deep)

Weight: 

8g (3.5g SMT versions) 

Power supply: 

+5 V nominal, (+3.5 V min, +5.5 V max), ~1A peak at maximum power 

 

Temp. Range:  

 -40 to +85 deg C 

 

*values are correct as of version 3.57 SiK firmware

Documentation:

 

RFD900ux DataSheet V1.3.pdf

RFD900ux Altium Library.zip --- INCLUDE????

Modem Support FAQs V1.2.pdf