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  • INCLUDES:12CH and 6CH Telemetry Receivers


MX-20 12 Channel 2.4GHz HoTT Transmitter + 12CH and 6CH Telemetry Receivers

RRP: $639.95
$574.95 (You save $65.00)

Product Description



Power and simplicity are the hallmarks of the mx-20. Considered by many as the workhorse among our hand held radios the mx-20 provides a clean and ergonomically design packed with features. With its 12 channels and built in real-time voice telemetry you will experience a new level of connection between you and your model. Navigating through the basic and function menus is easy using the 2 captive touch keys. A high contrast, 8-line blue illuminated graphic display ensures clear presentation of radio settings and telemetry data.

The high precision quad bearings and adjustable gimbals with 4096 resolution provide a smooth feeling for accurate flight control. High reliability is achieved by hopping over 75 2.4 GHz channels to secure the most reliable interference free operating channel for a safe and worry free flight.



Telemetry is integrated in all of our HoTT (Hopping Telemetry Transmission) radio systems and the mx-20 will not require any additional purchase to benefit from important telemetry functions such as signal quality, temperature or receiver voltage. Like all of our HoTT receivers, the included 12ch and 6ch receivers provide telemetry functions that can be configured to notify you in case of an imminent system failure. Graupner provides a wide selection of telemetry ESC's, modules and sensors that can connect directly to your HoTT receivers for immediate operation without the need for external hub boxes or complex wiring. Our third party partners provide additional telemetry products that will seamlessly work with your mz-24 HoTT radio.

Telemetry functions and notifications can be easily assigned to switches to provide information about battery voltage, used battery capacity, altitude, flight direction, speed and much more increasing your situational awareness and adding extra flight safety. No more surprises from sudden depleted batteries or flying out of range situations. The real-time bi-directional HoTT transmission protocol will constantly monitor system health and notify you when needed. Flight information is logged on a SD memory card during flight with all the important flight data to help you later analyze your system reliability and performance.



All HoTT products can be programmed and setup directly from the mx-20 radio. No need for cables, computers or programming boxes! Need to reverse your motor direction, setup your flight controller or make receiver settings? The mx-20 radio provides easy access to all the available functions of any HoTT device directly from the radio. Each HoTT device contains a user interface just like a website where your mx-20 radio functions as a browser to access the HoTT device allowing you to make on the spot changes at the field and even in the air during flight!



Making good use of your investment in Graupner products is important to us. All of our HoTT products such as receivers, flight stabilization systems, multirotor flight controllers, flybarless controllers, ESC and many more are all designed to be compatible with another regardless of HoTT radio used. This unified technology standard will ensure the same operation and user experience across all devices increasing usability and ease of use when using Graupner HoTT products.

Our wide selection of HoTT flight controllers for flybarless helicopters, airplanes and multirotors will further enhance the usability of your mx-20 making it future proof for new developments.

Interoperability is further extended with our wireless trainer link where the mx-20 radio can be used with any other Graupner HoTT radio in student teacher mode.




  • Intuitively easy to user interface
  • Quad bearings with 4096 resolution gimbals for smooth operation
  • Voice announcements with earpiece or optional Bluetooth module
  • Real-time data logging of all critical flight information
  • Updateable firmware with Graupner Firmware Update Studio
  • Well balanced weight distribution of radio with comfortable hand grips
  • User assignable switches and proportional controls
  • 12 fully proportional channels
  • User adjustable mode selection (1, 2, 3 or 4)
  • External DSC port for flight simulator connections or third party devices
  • HoTTSync for exclusive and safe operation of your models
  • 7 freely assignable flight phases
  • 3 ring limiters for Voith Schneider and similar drives
  • Switchable Snap Flap mixer
  • Channel sequencer for 3 channels for folding motors and landing gear and doors
  • Selectable signal repetition time of 10ms or 20ms for digital or analog servos
  • Use of up to 75 frequency hopping channels to ensure operating reliability
  • Wireless student and teacher mode
  • 24 model memories with almost unlimited model storage on SD memory card
  • Multi receiver binding for expansion and system redundancy
  • Support for digital SUMD or SUMO outputs for third party products such as flight controllers



  • mx-20 Transmitter
  • USB PC interface set
  • USB interface adapter wire
  • 2000mAh NiMH Battery
  • Battery Charger
  • GR-24L 12ch receiver







  • GR-12L 6ch receiver
  • USB Cable
  • SD Card adapter
  • SD Card case
  • Micro SD Card
  • Manual






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