ETRONIX Transmitters

The Etronix EX4GPro is a 4-channel 2.4GHz Frequency Hopping Spread Spectrum (FHSS) digital proportional radio system, engineered for precision control of RC cars, boats, and other surface models. Combining reliability, programmability and ease of use, it’s an ideal choice for hobbyists and racers a like.

Features

• 4-Channel FHSS Digital System – Stable, interference-free signal performance.
• High Precision Control – Fully proportional steering and throttle response.
• Comprehensive Menu System – Programmable EPA, D/R, Mixing, and more.
• Model Memory – Store up to 6 unique model profiles.
• Failsafe Function – Protects your model in case of signal loss.
• Telemetry Ready – Monitor transmitter and receiver voltage in real time.
• Digital Trim Adjustments – Fine-tune throttle and steering for perfect balance.
• ABS Braking & Curve Adjustments – Customise throttle and steering response curves.
• Timer Function – Ideal for racing sessions or battery management.

Transmitter Specifications

Channels: 4
Frequency Band: 2.4GHz FHSS
Power Supply: 4 x AA batteries
Operating Voltage: 4.8 – 6.0V
Display: Backlit LCD
Adjustable Parameters: ST.D/R, EPA, Reverse, ST/TH Curves, ABS, Mixing, Throttle Hold, Model Memory, Timer, Telemetry, Sound, Monitor
Operating Range: Up to 250m (terrain dependent)
Model Memory: 6 profiles
Failsafe: Programmable throttle fail position

Receiver Specifications

Model: ET1163 (compatible)
Channels: 4
Frequency: 2.4GHz FHSS
Input Voltage: 4.8 – 6.0V
Failsafe: Supported (Configurable throttle position)
Antenna Length: 26mm

Functions & Settings

Trim Adjustment

• Steering Trim (ST.TRIM): Adjusts 1CH steering centre for straight tracking.
• Throttle Trim (TH.TRIM): Adjusts 2CH neutral throttle position.
• Adjustment Range: -60 to +60, with audible beep at neutral and endpoints.

Steering Dual Rate (ST.D/R)

Controls maximum steering servo travel.
Adjustment range: 0% – 120%, default 100%.

End Point Adjustment (EPA)

Limits servo travel per channel.
Range: 0% – 120%, default 100%.

Throttle Hold (Idle-Up)

Applies preset throttle at neutral. Adjustable 0–100% (linear scale).
Use for engine warm-up, not while driving.

Channel Reverse

Reverses servo direction on any channel.

Steering & Throttle Curves

• Adjust servo sensitivity across travel range.
• Positive = sharper initial response.
• Negative = smoother initial response.

ABS Braking

Pulse braking for smoother deceleration and straight tracking.
Parameters include:

• PT (Activation point)
• WD (Brake pulse distance)
• CY (Pulse speed)
• DT (Brake release delay)

Model Memory

Store up to 6 model profiles, each with unique binding and settings.

Channel Mixing

Supports combinations: 2CH/3CH, 2CH/4CH, 3CH/4CH for advanced setups.

Timer

Count-up or countdown modes with audible alarm.

Telemetry

Displays TX/RX voltage and warns of low-voltage conditions (<4.6V for 3+ seconds).

Reset Function

Restores factory defaults (erases all model memories).

Sound Control

Toggle audible tones, alarms, and timers ON/OFF.

Channel Monitor

Displays real-time servo pulse values (approx. 1000–2000µs).

Digital 4CH

Optional 4th channel, usable in mixed or proportional mode.
Can be paired with 2CH or 3CH for advanced mixed control.

Features

• 4-Channel Radio
• Digital Screen Programming
• Spread Spectrum 2.4ghz FHSS Mode
• 6-Model Memory
• Digital Steering And Throttle
• Servo Monitor
• EPA Servo End Point Adjustment
• Exponential Steering Curve Adjustment
• Exponential Throttle Curve Adjustment
• Servo Reverse
• ABS Braking
• Failsafe Function
• Sound
• Switch Function
• Throttle Hold
• D/R Dual Rate Adjustment
• Channel Mixing
• Timer
• Voltage Alarm
• For surface model use (cars/boats)
• JST Plug In Battery Box (Requires 4 X AA)

Needed To Complete

• 4 x AA Batteries

Features

• 4-Channel
• Easy to use Control for Basic Surface Models
• Spread Spectrum 2.4ghz FHSS Mode
• Digital Steering and Throttle Trim Adjustments
• Steering Dual Rate D/R Adjustment
• Throttle Dual Rate D/R Adjustment
• 3 channel Toggle Switch
• 4 channel 3-Position Toggle Switch
• Servo Reversing
• Failsafe Function
• Charging Jack Port
• Plug in Battery Box
• 200m Surface Range

Needed To Complete

• 4 x AA Batteries

Etronix’s EX3G 3-channel radio control system uses the latest in 2.4ghz radio technology to ensure that each transmitter’s frequency remains secure from external interference.

Ideally suited to r/c car and boat applications upto 200m.

Features

• 2.4GHz Spread Spectrum FHSS Crystal Free
• 3-Channel
• Easy to use Control for Basic Models
• Digital Steering and Throttle Trim Adjustment
• FHSS Modulation
• Servo Reversing
• Steering Dual Rates
• Fail Safe Function
• Charging Jack Port
• Plug in Battery Box for 4 AA Batteries (required)
• Surface Range 200M

Etronix’s EX4GT 4-channel radio control system uses the latest in 2.4ghz radio technology to ensure that each transmitter’s frequency remains secure from external interference. The EX4GT benefits from 2 extra Aux switched channels, one is a 2 stage and the other a three stage switch.

Ideally suited to r/c car and boat applications upto 120m.

Features

• 2.4GHz Spread Spectrum GFSK Crystal Free
• 4-Channels (2 x Proportional, 1 x Three Stage Switch, 1 x Two Stage Switch)
• Easy to use Control for Basic Models
• GFSK Modulation
• Steering and Throttle Trim Adjustment
• Steering and Throttle End Point Adjustment
• Steering and Throttle End Dual Rates
• Servo Reversing
• Fail Safe Function
• 4 x AA Batteries to Power (required)
• Surface Range 120M

Please note :- This is a replacement transmitter only

Please Note: Transmitter Only – receiver (ET1096) available separately.

Etronix's new EX2 Sport radio control system uses the latest in 2.4ghz radio technology to ensure that each transmitter's frequency remains secure from external interference.

Ideally suited to r/c car and boat applications.

Pulse EX2 Sport Features:

• 2.4GHz Crystal Free
• 2-Channel
• Low voltage warning: Yes (less than 9V)
• Easy to use Control for Basic Models
• Throttle Position Neutral Failsafe
• RF power: Less than 20dbm
• Modulation: GFSK
• Code type: Digital
• Sensitivity: 1024
• Servo Reversing
• DSC port: Yes (3.5mm)
• Weight: 328g
• DSC Port for Simulator use
• Steering Dual Rates
• 3-Channel Receiver
• Charging Jack