GoolRC Noble NB4+

GoolRC Flysky Noble NB4+ Radio Transmitter User Manual

Model: Noble NB4+

Brand: GoolRC

1. Introduction and Overview

The GoolRC Flysky Noble NB4+ is a high-performance 2.4GHz 8-channel radio transmitter designed for precise control of RC cars and boats. This system utilizes the advanced AFHDS 3 protocol, ensuring reliable and fast communication. This manual provides essential information for the proper setup, operation, and maintenance of your Noble NB4+ transmitter and the included FGr4S V2 receiver system.

GoolRC Flysky Noble NB4+ Radio Transmitter and FGr4S V2 Receiver

Image: The GoolRC Flysky Noble NB4+ Radio Transmitter and its accompanying FGr4S V2 Receiver.

2. Package Contents

Before proceeding with setup, please verify that all components are present in your package:

  • 1x Flysky Noble NB4+ Transmitter
  • 1x Flysky FGr4S V2 Receiver
  • 1x USB Cable
  • 1x Accessories kit (includes different grips and extra springs)
Contents of the GoolRC Flysky Noble NB4+ package

Image: All items included in the GoolRC Flysky Noble NB4+ product package.

3. Setup Guide

3.1. Battery Installation and Charging

The Noble NB4+ features a dual battery system for extended operation. It includes one removable battery in the handle and a removable power bank in the base. The power bank in the base can charge the handle battery when connected. Use the provided USB Type-C cable for charging the transmitter.

3.2. Receiver Binding (FGr4S V2)

To establish communication between the transmitter and receiver, a binding process is required. Refer to the detailed instructions provided in the separate quick start guide for the specific binding procedure for the FGr4S V2 receiver.

Flysky FGr4S V2 Receiver with dimensions and pinout diagram

Image: Detailed view of the Flysky FGr4S V2 Receiver, showing its compact size and connection ports.

4. Operating Instructions

4.1. Power On/Off

To power on the transmitter, press and hold the power button for approximately 1-2 seconds. Repeat the process to power off the device.

4.2. Basic Controls

The Noble NB4+ features a standard pistol-grip design with a steering wheel for directional control and a trigger for throttle input. Familiarize yourself with the physical layout and feel of these controls.

4.3. Touch Screen Navigation

The 3.5-inch 320x480 full dot matrix color IPS touch screen allows for intuitive navigation through menus and settings. Tap icons and swipe to access various functions and adjustments.

Noble NB4+ transmitter screen showing high brightness outdoor display

Image: The Noble NB4+ transmitter's high-brightness outdoor display, designed for clear visibility in various lighting conditions.

4.4. Channel Customization

The transmitter allows for customizing channel names, making it easier to identify and manage the function of each channel in real-time. This feature enhances user understanding and control.

Noble NB4+ transmitter screen showing channel customization options

Image: The channel customization interface on the Noble NB4+ screen, allowing users to rename channels for clarity.

4.5. Advanced Features

  • Trainer Mode: The USB Type-C interface supports a coach mode, enabling interactive teaching with dual-ended Type-C data cables.
  • Head Tracking Functionality: Connect a head tracking device via the dedicated cable to experience immersive control.
  • Colorful UI Design: Customize themes and wallpapers on the display for a personalized user experience.
Close-up of the USB Type-C port on the Noble NB4+ transmitter

Image: The USB Type-C port on the Noble NB4+ transmitter, used for data output, charging, and advanced functionalities like trainer mode and head tracking.

5. Specifications

5.1. Noble NB4+ Transmitter Specifications

FeatureDetail
Compatible ReceiverFGr4S V2 and other All AFHDS 3 protocol receivers
Compatible ModelsCar or Boat
Number of Channels8
Wireless Frequency2.4GHz ISM
Maximum Power<20 dBm
Low Voltage Alarm<3.65V
Data OutputUSB Type-C
Charging InterfaceUSB Type-C
Antenna TypeBuilt-in single antenna
Display3.5-inch 320*480 full dot matrix color IPS touch screen
Resolution4096
Input Power1S (4.35V)*4300mAh Lithium Polymer Battery + 3450mAh 18650 Battery
Distance>300m (Ground distance without interference)
Online UpdateYes
Temperature Range-10°C ~ +60°C
Humidity Range20%~95%
Size131.41*115.95*190.56mm
Weight520g

5.2. FGr4S V2 Receiver Specifications

FeatureDetail
PWM Channel4
Wireless Frequency2.4GHz
Wireless ProtocolAFHDS 3
Antenna TypeBuilt-in single antenna
Power3.5-8.4V
Data PortPWM / PPM / i.bus/S.BUS
Temperature Range-10°C ~ +60°C
Humidity Range20% -95%
Transmission Power<20dBm
Working Current25mA/5V
DisplayLED Indicator
Online UpdateYes
Size26*22*17.3mm
Weight5.1g

6. Maintenance

6.1. Cleaning

Regularly clean the transmitter and receiver with a soft, dry cloth. Avoid using harsh chemicals or solvents that could damage the plastic or electronic components.

6.2. Battery Care

To prolong battery life, avoid overcharging or completely discharging the lithium polymer batteries. Store the device in a cool, dry place when not in use for extended periods.

6.3. Firmware Updates

The Noble NB4+ supports online firmware updates via its USB Type-C interface. Periodically check the official GoolRC or Flysky website for the latest firmware versions to ensure optimal performance and access to new features.

7. Troubleshooting

7.1. No Power

  • Ensure batteries are properly installed and charged.
  • Verify the power button is pressed and held for the required duration.

7.2. No Signal/Loss of Control

  • Confirm the receiver is correctly bound to the transmitter.
  • Check for potential 2.4GHz radio signal interference from other devices.
  • Ensure the model is within the operational distance (>300m ground distance without interference).
  • Avoid gripping the transmitter antenna during operation, as this can degrade signal quality.

7.3. Display Issues

  • If the screen is unresponsive, try restarting the transmitter.
  • Ensure the screen is clean and free from debris.

8. Safety Information

Please adhere to the following safety guidelines to ensure safe operation and prevent loss of control:

  • To avoid 2.4Ghz radio signal interference, always keep your model in sight and within 300m. Ensure there are no other signals around that may block the RF signal and lead to loss of control.
  • Never grip the transmitter antenna during operation. Doing so significantly degrades signal quality and strength and may cause loss of control.
  • This product is recommended for users aged 14 years and up.

9. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the documentation included with your product or visit the official GoolRC website. Keep your proof of purchase for any warranty claims.

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