Rather Good Guides®

Documentation the way it ought to be.

License the Full Guide for $39.95.

Free 77+ page sample.

What about the DX8G2?

The DX8G2 lacks some trim switches and a couple of analog controls. The full comparison chart is here. But this DX9 Guide covers all of the features of the DX8G2 -- just be mindful of the differences though.

     The Quick Read

  • 622+ pages in PDF file.
  • Advanced design for reading on your tablet, PC, or even your Smartphone out at the flying field.
  • Full index, Table of Contents, Table of Figures. Jump directly to the right section.
  • 870 cross-references -- go straight to these other sections.
  • Detailed, approachable, understandable, explanations for all the necessary concepts.
  • Over 2,300 screen prints and diagrams all making easy reading.
  • Specifically written for newcomers to RC flying -- as well as for experienced DX9 owners who want in-depth explanations.
  • All the programming procedures have been independently tested. They work!


Whoa! 622 pages? Don't be scared! Use it like an encyclopedia -- everything has hyperlinks so you can flit back and forth to look up what you need quickly, rather than having to read it cover-to-cover!

If you're not sure whether to license the full Guide, there is a 77-page free sample of  the Guide that you can download immediately and get a sense of whether you'd like to buy a license to the complete Guide.


A Rather Good Guide® for Programming the Spektrum DX9 Transmitter for Fixed-Wing Aircraft

One of the first transmitters we encountered when we started flying multi-rotor copters professionally back in 2012, was the Spektrum DX9. This computer-controlled transmitter contains a dazzling array of features, but the manual is only 43 page long and dives straight into concepts that we didn't understand using unfamiliar terms that we didn't understand either. Over the years, we found out more and more information, hunting and gathering it from the Internet on sites such as rcgroups.com (the thread is only 65,000 postings, after all).


Gradually it dawned on us that only a handful of RC pilots really understand how the DX9 transmitter works -- and more to the point how to make it work for them. The manual was just too hard to figure out so most people did not bother. They bought the DX9 for what it could do, but discovered that making it do what they needed was way too hard. Until now.


It's been a year in the making but we're finally ready to publish this in-depth guide to the Spektrum DX9 Transmitter. We're pretty sure that you've never seen a manual as good as this one. It's well written, explains concepts clearly, and shows you what to do and how to do it. It has numerous worked, real-world and tested, examples, and you can find things quickly and easily with a detailed index, table of contents, table of figures, and nearly 900 "hyperlinks" so you can jump back and forth around the Adobe PDF file on your computer, tablet, or even your Smartphone if you're out at the flying field.

DO NOT USE - SEE NOTE BELOW. You will receive an email with the download link.

Click here to get an email with a download link for the  free 77-page PDF sample of the Guide.


We are having some trouble with our payment system. To order this guide please let us know using the email address on the Contact tab. Thanks.

Ask Around Your RC Club for Answers:

You'll probably find that only one or two people know the answers to questions like:

  • How can I program a mix on my DX9 to make the nosewheel steering less sensitive on takeoff or landing?
  • How can I best use Flight Modes?
  • How can I program up a Sequence to flash LED strobe lights?
  • What's a curve mix?
  • Why would I mix a channel with itself?
  • How can I control both the throttle and wheelbrakes with the throttle joystick?


All these questions and many more are answered in this Rather Good Guide® for Programming the Spektrum DX9 for Fixed Wing Aircraft.

Copyright © 2020 Johnson-Laird Inc.