--- title: RFD868x --- [![rfdesign-logo-1](https://kb.rfdesign.com.au/hs-fs/hubfs/rfdesign-logo-1.png?width=280&height=50&name=rfdesign-logo-1.png "rfdesign-logo-1")](https://rfdesign.com.au) - Products Show submenu for Products - [RF Modems](https://kb.rfdesign.com.au/modems) Show submenu for RF Modems - [RFD900x Series](https://kb.rfdesign.com.au/900x-clone) - [RFD900ux Series](https://kb.rfdesign.com.au/rfd900ux) - [RFD868x Series](https://kb.rfdesign.com.au/rfd868x) - [Redundant Flight Control](https://kb.rfdesign.com.au/af-series-flight-controllers) Show submenu for Redundant Flight Control - [AF1](https://kb.rfdesign.com.au/af1-redundant-flight-system) - [AF3](https://kb.rfdesign.com.au/af3-redundant-flight-system) - Industrial Communications Show submenu for Industrial Communications - TxMOD - TxPole - [Dinio](https://kb.rfdesign.com.au/rfddinio) - UAVs Show submenu for UAVs - RFD-150-8H - Blog - Support Show submenu for Support - [Knowledge Base](https://kb.rfdesign.com.au) - Customer Portal - Contact Show submenu for Contact - [Sales](https://kb.rfdesign.com.au/contact-sales) - Technical Support - Products Show submenu for Products - [RF Modems](https://kb.rfdesign.com.au/modems) Show submenu for RF Modems - [RFD900x Series](https://kb.rfdesign.com.au/900x-clone) - [RFD900ux Series](https://kb.rfdesign.com.au/rfd900ux) - [RFD868x Series](https://kb.rfdesign.com.au/rfd868x) - [Redundant Flight Control](https://kb.rfdesign.com.au/af-series-flight-controllers) Show submenu for Redundant Flight Control - [AF1](https://kb.rfdesign.com.au/af1-redundant-flight-system) - [AF3](https://kb.rfdesign.com.au/af3-redundant-flight-system) - Industrial Communications Show submenu for Industrial Communications - TxMOD - TxPole - [Dinio](https://kb.rfdesign.com.au/rfddinio) - UAVs Show submenu for UAVs - RFD-150-8H - Blog - Support Show submenu for Support - [Knowledge Base](https://kb.rfdesign.com.au) - Customer Portal - Contact Show submenu for Contact - [Sales](https://kb.rfdesign.com.au/contact-sales) - Technical Support [Online Store](https://store.rfdesign.com.au) Search - There are no suggestions because the search field is empty. ## RFD868x The RFD868x is part of our best-selling x series of data modems; a high performance 868MHz ISM band radio modem covering the 865-870MHz frequency band. Designed for long range data communication applications which require best-in-class radio link performance. The RFD900x radio modem - designed, tested and inspected in Australia. NDAA compliant. Geographic versions compliant with Australian, New Zealand and United States of America standards are available. ![Capture8](https://kb.rfdesign.com.au/hs-fs/hubfs/Capture8.png?width=336&height=272&name=Capture8.png) [![buynow](https://kb.rfdesign.com.au/hubfs/buynow.png "buynow")](https://store.rfdesign.com.au) ## Models:                    | Modem Model | Maximum Transmit Power(dBm) | Frequency Band/s (MHZ) | Number of Channels | Max Duty Cycle (%) | | --- | --- | --- | --- | --- | | 868x | 30 | 868-870 | 1 | 100 | | 868x-EU (Europe) | 27/7 | 869.7-870 | 1 | 10/100 | 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    - Long-range data link capable of transmitting more than 40km depending on parameter settings and antennas. - Compatible with the MavLink environment. - Maximum Air data rate: 224kbit/s. - AES Hardware accelerated encryption. - Optional RC PPM or SBUS Passthrough. (SiK firmware) - GPIO Pin Mirroring capability. (SiK firmware) - RF front-end filtering. -  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 - License-free use in European Union. (Depending on regional variants) - Compatibility with ux series modems. Note: - The ux and x series modems are not compatible with older "a" or “+” series modems .  ## 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:  | >-102dBm at 12kbps\* | | Size:  | 30 mm (wide) x 57 mm (long) x 12.8 mm (deep) - Including RF Shield, PCB and Heatsink.   Bare Version 30 mm (wide) x 42.5 mm (long) x 6.25mm (deep) | | Weight:  | 14g  7g Bare  | | Power supply:  | +5 V nominal, (+3.5 V min, +5.5 V max), ~1.2A peak at maximum power    | | Temp. Range:   | -40 to +85 deg C    | \*values are correct as of version 3.57 SiK firmware ## Interfaces:   - RF: 2 x RP-SMA antenna connectors - Serial: Logic level TTL (+3.3V) - Power Input: +5v, ~1.2A max peak (at maximum transmit power) - GPIO: 6 General purpose IO (Digital, ADC, PWM capable). ## Documentation:   [RFD900x DataSheet V1.2.pdf](https://kb.rfdesign.com.au/hubfs/900x/RFD900x%20DataSheet%20V1.2.pdf?hsLang=en-au) [RFD900x Multipoint User Manual V1.0.pdf](https://kb.rfdesign.com.au/hubfs/900x/RFD900x%20Multipoint%20User%20Manual%20V1.0.pdf?hsLang=en-au) [RFD900x Peer-to-peer V3.X User Manual V1.4.pdf](https://kb.rfdesign.com.au/hubfs/900x/RFD900x%20Peer-to-peer%20V3.X%20User%20Manual%20V1.4.pdf?hsLang=en-au) [RFD900x Asynchronous User Manual V1.1.pdf](https://kb.rfdesign.com.au/hubfs/900x/RFD900x%20Asynchronous%20User%20Manual%20V1.1.pdf?hsLang=en-au)    [![rfdesign-logo](https://kb.rfdesign.com.au/hs-fs/hubfs/rfdesign-logo.png?width=280&height=50&name=rfdesign-logo.png "rfdesign-logo")](https://rfdesign.com.au) Innovative UAV components and solutions. +61 7 3255 6042 7/1 Stockwell Place Archerfield QLD 4108 --- [Follow us on Facebook](https://www.facebook.com) [Follow us on LinkedIn](https://www.linkedin.com) [Follow us on Twitter](https://www.twitter.com) [Follow us on Instagram](https://www.instagram.com) © 2026 All rights reserved.