How to Add Engine Safety Switch Voice Feedback on Radiomaster TX16s

14th February 2026

These instruction show you how to Add Engine Safety Switch Voice Feedback on a Radiomaster TX16s when switches are moved. Voice feedback is useful for the following:

Start

  • With the Model selected, press MDL button
  • Press the Page> button Six times

the Special Functions page should be displayed

  • The first line should read: SF1 Arm↓ Override – CH3 = -100 if the safety switch has been configured
  • Press the Scroll Wheel, select Copy, press the Scroll Wheel
  • Scroll down to the + sign, press the Scroll Wheel
  • Select Paste, press the Scroll Wheel
  • Select SF2, press the Scroll Wheel
  • Press the Scroll Wheel, select Edit, press the Scroll Wheel
  • Scroll down to Function, press the Scroll Wheel
  • Select Play Track, press the Scroll Wheel
  • Scroll down to Value, press the Scroll Wheel
  • Select thrcut, press the Scroll Wheel
  • Scroll down to Enable, press the Scroll Wheel

The Transmitter will say Throttle Cut

  • Press RTN
  • Press the Scroll Wheel, select Copy, press the Scroll Wheel
  • Scroll down to the + sign, press the Scroll Wheel
  • Select Paste, press the Scroll Wheel
  • Select SF3, press the Scroll Wheel
  • Press the Scroll Wheel, select Edit, press the Scroll Wheel
  • Select Trigger, press the Scroll Wheel
  • Change Arm↓ to Arm↑, press the Scroll Wheel
  • Scroll down to Value, press the Scroll Wheel
  • Change Thrcut to thract, press the Scroll Wheel

The transmitter will not say anything

  • Press RTN twice to Exit

Push switch SF Down, the transmitter will say Throttle Active, the throttle will work

Pulling SF Up, the Transmitter will say Throttle Cut, the throttle will be disabled

 

 

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