REX V1.12 & REX Assist V1.10

Lots of new features have been included in the latest updates for standard REX and REX Assist receivers:

Duplex REX Assist V1.10
Comes with a lot of fixes and enhancements. Horizon and Training flight modes have been optimized, introducing 2D flight mode. To see a full list of features and modifications please visit the release notes.


Duplex REX V1.12
With EX Bus backup and signal forwarding.

Download here

All updates can be handled easily by JETI Studio. Please download the latest device definitions to your transmitter (simply update the transmitter to V4.28 via JETI Studio, the necessary files will be downloaded automatically).


Download JETI Studio



Big March Update is here

Lots of new features have been included in the latest updates for transmitters, receivers and JETI Studio PC software:

JETI Studio V1.1.0
It comes with new Transmitter wizard, Lua apps manager and automatic updates of the transmitters.

Download JETI Studio

DC/DS Firmware update V4.27

Update your transmitter to the latest version directly from JETI Studio. New transmitter features:
- DITEX telemetry support
- Updated vario settings
- New voice announcements...


Duplex REX V1.10
With DITEX telemetry support. All updates can be handled easily by JETI Studio.

DITEX: Telemetry Update Process



JETI Studio & Central Box 400 Updates

JETI Studio V1.0.5 comes with several new functions and additional optitmizations/fixes.

- Import log files from the MGPS EX sensor directly.
- List of available device updates can be easily displayed in the updater dialog.

More information


Central Box 400 V1.0.9 now supports additional 3rd satellite on its Ext. input.

Download the update


J4A23T High-Torque Brushless Servo

Art. No.: 
EAN: 8595245914097
J4A23T High-Torque Brushless Servo
Weight [g] 74
Supply Voltage [V] 4.8 ... 8.4
Torque (6V) [kg/cm] 18.5
Torque (7.4V) [kg/cm] 23
Torque (8.2V) [kg/cm] 25
Speed (6V) [s] 0.15
Speed (7.4V) [s] 0.12
Speed (8.2V) [s] 0.11
Max. current (7.4V) [A] 5.8
Motor BLCD
Ball bearings 2
Gearbox material metal
Compatible horn (Ø6mm) 25-teeth Spline (Futaba compatible)
The J4A23T is a precise full-metal digital servo for large models. Standard size.
  • High torque and speed
  • High voltage
  • Precision metal gearbox
  • Ball bearings
  • Watter proof
  • Aluminium case






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