RFD900, RFD900+ - New long range radio modem

Hi All,

I would like to introduce you to a new radio modem that we developed for very long range datalinks!


Some of the key features of the RFD900 are as follows:

  • Multi point and point to point link capability.
  • 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.
  • RX SAW filter.
  • Passive front end band pass filter.
  • Open source firmware / tools, field upgradeable, easy to configure.
  • Small (30 x 57 x 13 mm), light weight (14.5g).
  • Compatible with 3DR / Hope-RF radio modules.
  • License free use in Australia, Canada, USA, NZ.


These modems are designed to support long range applications, while being easy to use and affordable.  

These modems have been flying in various platforms and have demonstrated excellent performance in real applications. 

RFD900 modems are now available at: http://store.rfdesign.com.au

Support within APM planner and the radio configurator from Michael Oborne is already available.

It works seamlessly with APM planner, all radio Mavlink parameters are available.

Update, December 2014:  The RFD900+ with improved specifications is available now at:


Seppo Saario



Views: 102248

Reply to This

Replies to This Discussion

900+ and 900X are not compatible. I do have multiple pairs of each.

The biggest advantage of the 900X is its fast processor which let ECC work without any lag.



Edward Sellars said:

I have one 900+ unit and one 900x. I cant get the 900x to talk to my 900+. I've tried all sorts of firwares, etc? Can anyone help or are they simply not compatible? The newest 2 900x firmwares say they will not work with older versions of the SIK firmware because of a change in frequency so i tried all of them and put 1.13 on my 900+. Any help would be great!


Some one using RDF868x???

We are trying to install one of them, and we are having serious problems with GPS. This does not even do 3D fix. 

It lost almost all satelites when we switch on the RFD868

We have tested RFD900 in the past and not problems but the I have a big problem RFD868.

someone with same problem has tested other frequencies or a filter?

Reply to Discussion



Season Two of the Trust Time Trial (T3) Contest 
A list of all T3 contests is here. The current round, the Vertical Horizontal one, is here

© 2018   Created by Chris Anderson.   Powered by

Badges  |  Report an Issue  |  Terms of Service