JETI model s.r.o.

DUPLEX REX 10 Assist

DUPLEX REX 10 Assist
Art. No.:


10 channel receiver with integrated Assist stabilization, compatible with JETI EX & EX Bus protocols. Supports telemetry functions and stabilization for airplane and multicopter models.


The REX Assist receivers enhance the REX series of receivers and extend it with the intelligent flight stabilization feature, which is designed for airplane models and multicopters. This stabilization works in all three axes of the model and facilitates flying in windy or otherwise challenging conditions. Aerobatic maneuvers will be more accurate and smoother. With the help of several flight modes, which are also suitable for beginner pilots, flying practice will be really easy.



  • Up to 16 stabilized airplane channels.
  • Support for different multicopter types – from tricopters to octocopters.
  • Up to 3 adjustable flight modes, options for stabilizing the horizon and altitude.
  • In-flight gain tuning using free channels.
  • Using the latest 3-axis gyroscope, 3-axis accelerometer and barometric altimeter.
  • Support for LED strip consisting of WS2812 chips.
  • Support for external camera gimbal driven by servos.
  • Intelligent fail-safe.
  • Vibration analysis.
  • Full set-up options with DC/DS transmitters or via PC.
  • Available telemetry: Receiver voltage, signal quality, G-force, attitude orientation.
  • Support of telemetry and up to 3 sensors connected directly.



Table of possible functions on the individual receiver pins

Output Types:

  • Y1 - Y12: servo output, digital output, digital input, motor 1-8 (multicopters), camera roll, pitch, and yaw.
  • E1, E2: JETIBOX/EX sensor, PPM output, PPM input, EX Bus output, UDI output
  • Ext: JETIBOX/EX sensor


Weight [g] 16
Dimensions [mm] 51 x 28 x 11
Number of channels 10
Telemetry Yes
Operational temperature [°C] -10 to 85
Compatible protocols DUPLEX 2.4 GHz EX, EX Bus
Antenna Length [mm] 2x 200
Supply Voltage [V] 3.5 - 8.4
Average Current [mA] 85
Satellite receiver support Yes
Output Power [dBm] 15
Receiver Sensitivity [dBm] -106
Assist stabilization No
Frequency 2.4GHZ


Manual for Duplex receivers "REX Assist" - German

Duplex-1,00 REX-ASSIST-DE-2023-02-web.pdf

Manual for Duplex receivers "REX Assist" - English

Manual Duplex-1,xx REX-ASSIST-EN_2023-02.web.pdf

Declaration of comfornity REX Assist

declaration of comfornity REX Assist - web.pdf

Basic Manual for REX Assist - CZECH

REX Assist - BASIC- 2022-3-web.pdf

Manual for REX Assist - CZECH

Duplex-1,xx REX-ASSIST-CZ_2022-12web.pdf

Basic Manual for REX Assist - English

Manual for REX - BASIC-EN-web.pdf

Manual for REX - BASIC-DE-web.pdf

Manual BASIC-DE-2022-web.pdf