DX3R PRO 3-Channel Racing System
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Manuals & SupportDX3R PRO: EXPERT-DRIVEN
If you want a radio that's packed with high-end features, the DX3R PRO delivers. It is Spektrum's advanced
pro-level surface transmitter system. This easy-to-use transmitter is incredibly intuitive and has the lowest
latency on the market. You're going to love its drop-down steering wheel, 50-model memory and backlit screen.
The DX3R Pro also has a vibration device for alerts and new software features, including servo speed, ABS and
traction control. Plus, it features an ultra-fast 5.5ms frame rate, integrated on-screen telemetry and a
push-button lap timer. Time after time, the DX3R PRO will provide you with incredible speed and precision.
Get the edge over the competition and take control with the Spektrum DX3R PRO.
Key Features

High-End SPEKTRUM Software. Drive Like an Expert.
The DX3R PRO is packed with first-class software, including servo speed adjustment, ABS, traction control and 50-model memory. It's marine-compatible and comes with four timer functions-including a rolling lap timer. When it's time for software updates, the DX3R PRO's SD card functionality makes it simple.*
*SD card not included.

Advanced Ergonomics. Designed to Fit the Way You Drive.
The Spektrum DX3R PRO is an advanced-level surface transmitter system. So naturally it comes with advanced-level ergonomics. Everything about the DX3R PRO is made to fit the way you drive, from the optional dropdown steering wheel to the easy-to-read backlit screen to the large grip. Right- and left-hand settings are also included.

Built-In Telemetry: Check temp, speed and voltage in real-time.
Drive smarter with the DX3R PRO. You can monitor your engine or motor temperature, keep tabs on your engine rpm's or vehicle speed, track battery voltage and check your lap time. The DX3R PRO and integrated telemetry let you do all this right from the large LCD readout. Transmitter also includes vibrating and audible alerts.
Spektrum SR3100 DSM2 3-Channel Receiver.
The SR3100 is specifically designed to take full advantage of the DX3R PRO's advanced DSM2 spread spectrum. This technology provides glitch-free performance and the fastest response of any spread spectrum receiver. It's all yours in a package that can easily fit on a 1/18-scale chassis.

Key Features
- Spektrums SR3100 receiver included (not telemetry compatible)
- 50-model memory
- Backlit 128 x 64 high-resolution dot-matrix LCD
- Real-time integrated telemetry (rpm/speed, temp, lap)*
- Drop-down steering wheel and other improved ergonomics
- Vibrating and tone alerts
- Servo speed
- DSM2® 2.4GHz technology offers the fastest response rate of 5.5ms with 4096 resolution.
- Right- and left-hand compatible
- Anti-lock braking system (ABS) and traction control
- One-touch, easy-to-use programming
- Programmable steering rate override
- On-the-fly throttle and steering exponential adjustments
- All switches can be programmed to operate in either direction
- Four programmable timers: up, down, integrated and rolling lap
- Graphically supported travel adjust and expo curves
- Two programmable mixes
- Adjustable trim steps
- Digital servo monitor displays graphic and digital servo positions
- Calibration screen allows recalibration of steering and throttle positions for the ultimate in accuracy
- Compatible with DSM®, DSM2 and marine surface receivers
- Pre-set failsafe on all 3 channels
Overview
High-End Software. Drive Like an Expert.
The DX3R PRO radio is
packed with first-class software, including servo speed adjustment, ABS, traction control and 50-model memory.
It’s marine-compatible and comes with four timer functions—including a rolling lap timer. When it's time
for software updates, the DX3R PRO SD card functionality makes it simple.*
*SD card not included.
Advanced Ergonomics. Designed to Fit the Way You Drive.
The Spektrum™ DX3R
PRO radio is an advanced-level surface transmitter system. So naturally it comes with advanced-level ergonomics.
Everything about the DX3R PRO model is made to fit the way you drive, from the optional drop-down steering wheel
to the easy-to-read backlit screen to the large grip. Right- and left-hand settings are also included.
Built-In Telemetry: Check Temp, Speed and Voltage in Real Time.*
Drive smarter with
the DX3R PRO radio. You can monitor your engine or motor temperature, keep tabs on your engine rpm or vehicle
speed, track battery voltage and check your lap time. The DX3R PRO radio and integrated telemetry let you do all
this right from the large LCD readout. Transmitter also includes vibrating and audible alerts.
Spektrum
SR3100 DSM2® 3-Channel Receiver
The included SR3100 receiver is specifically designed to take
full advantage of the advanced DX3R PRO DSM2® spread spectrum. This technology provides glitch-free
performance and the fastest response of any spread spectrum receiver. It’s all yours in a package that can
easily fit on a 1/18-scale chassis.
* Requires telemetry compatible receiver and sensors (sold separately).The included SR3100 receiver is not telemetry compatible.
Technical Notes
Replacement Antenna:
The replacement antenna for the DX3R is not available seperatly. Please contact Horizon Hobby Service for replacement options.
Note on calculating Speed:
The roll out conversion factor for the DX3R Pro needs to be input as a measure in feet. If the roll out from Method A (page 17 of the manual) is measured in inches, divide this result by 12 to determine your conversion factor.