1. Introduction
This manual provides essential information for the safe and efficient operation of your RADIOMASTER Pocket Hall Gimbal Transmitter. Please read this manual thoroughly before use to ensure proper setup and functionality.
2. Safety Information
Always refer to the instruction manual before use.
- Ensure batteries are correctly installed and charged before operation.
- Operate the transmitter in a safe environment, away from obstacles and people.
- Do not expose the device to water or extreme temperatures.
- Keep out of reach of children.
- Regularly check for any damage or loose connections.
3. What's in the Box
Upon unboxing, verify that all components are present:
- 1 x RADIOMASTER Pocket Radio
- 1 x Custom Carry Pouch
- 1 x USB-C Cable
- 1 x Screen Protector
- 1 x Sticker
- (Optional: 4 x Low Tension Springs - if included in your package)

Image: All items included in the RADIOMASTER Pocket package, including the radio, carry pouch, USB-C cable, screen protector, and sticker sheet.
4. Product Overview
The RADIOMASTER Pocket is a compact and lightweight remote control transmitter designed for various RC applications. It features Hall Gimbals for precise control and runs on EdgeTX firmware.
4.1 Front View

Image: Front view of the RADIOMASTER Pocket transmitter in charcoal, showing the gimbals, LCD screen, and control buttons.

Image: The RADIOMASTER Pocket transmitter showcasing its built-in LED lights, which visualize inputs and enhance visibility.
4.2 Rear View

Image: Rear view of the RADIOMASTER Pocket transmitter, highlighting the battery compartments and external module bay.
4.3 Key Features
- Hall Effect Gimbals: Provide smooth centering and precise response.
- Removable Stick Ends: For convenient storage and transport.
- Foldable Antenna: Keeps the antenna protected and out of the way when not in use.
- Backlit LCD Screen: Offers a clear display of settings and telemetry.
- Built-in LED Lights: Visualize inputs and add a stylish element.
- External Module Bay: Compatible with RadioMaster Nano-size modules and TBS Nano Crossfire/Nano Tracer.
- 18650 Battery Compatibility: Uses two 18650 batteries for extended operation (batteries not included).

Image: Visual representation of the removable stick ends, foldable antenna, and Hall Gimbal features.

Image: Detailed view of trim buttons, 18650 battery compartments, built-in LED lights, and the external Nano module bay.
4.4 Control Layout Diagram

Image: An annotated diagram illustrating the various buttons, switches, ports, and gimbal adjustment points on the transmitter.
- Left Gimbal: Controls throttle and yaw (Mode 2).
- Right Gimbal: Controls pitch and roll (Mode 2).
- Switches (SA, SB, SC, SD, SE, SF): Programmable 2-position and 3-position switches.
- Buttons (RTN, PAGE>, PAGE<, TELE, SYS, MDL): Navigation and system control buttons.
- Trim Buttons: For fine-tuning channel adjustments.
- USB-C Port: For charging and data connection.
- DSC Trainer Port: For trainer functionality.
- 3.5mm Headphone Jack: For audio output.
- External Module Bay: For adding compatible external modules.
5. Setup
5.1 Battery Installation
- Open the battery compartments on the rear of the transmitter.
- Insert two 18650 Li-ion batteries, ensuring correct polarity.
- Close the battery compartments securely.
5.2 Initial Power-On
- Ensure the antenna is in the upright position.
- Press and hold the power button until the screen illuminates.
- The transmitter will boot into the EdgeTX firmware.
5.3 Gimbal Adjustment
The gimbals can be adjusted for tension and self-centering. Refer to the diagram in Section 4.4 for adjustment screw locations.
- A (I-R): Turn clockwise to disable self-centering (throttle), counter-clockwise to enable self-centering.
- B (Throttle Tension): Turn clockwise to increase stick tension, counter-clockwise to decrease tension.
- C (Up-Down Tension): Turn clockwise to increase vertical stick tension, counter-clockwise to decrease tension.
- D (Left-Right Tension): Turn clockwise to increase horizontal stick tension, counter-clockwise to decrease tension.
6. Operating Instructions
6.1 EdgeTX Firmware
The RADIOMASTER Pocket comes pre-installed with EdgeTX firmware, offering extensive customization and functionality. For detailed instructions on navigating EdgeTX menus, model setup, and binding procedures, please refer to the official EdgeTX documentation available online.
6.2 Using the External Module Bay
The external module bay allows for compatibility with various Nano-size modules, such as TBS Nano Crossfire or Nano Tracer. To install a module:
- Ensure the transmitter is powered off.
- Carefully insert the Nano module into the external module bay on the rear of the transmitter.
- Power on the transmitter and configure the module settings within EdgeTX.
6.3 Charging
Connect the included USB-C cable to the USB-C port on the transmitter and to a suitable USB power source (e.g., computer, wall adapter). The charging indicator will show the charging status.
7. Maintenance
- Keep the transmitter clean and free from dust and debris.
- Store in a cool, dry place when not in use.
- Avoid dropping or subjecting the transmitter to harsh impacts.
- Periodically check all switches and gimbals for smooth operation.
- Ensure the foldable antenna mechanism operates freely.
8. Troubleshooting
- Transmitter does not power on:
- Check if 18650 batteries are correctly installed and fully charged.
- Ensure the power button is pressed and held sufficiently.
- No signal to receiver:
- Verify the binding procedure between the transmitter and receiver.
- Check the external module (if used) for proper installation and configuration.
- Ensure the antenna is fully extended.
- Gimbals or switches not responding:
- Check settings within EdgeTX firmware.
- Inspect for any physical obstructions or damage.
- Firmware issues (e.g., "No Drivers or Firmware" message):
- Connect the transmitter to a computer via USB-C.
- Visit the official RADIOMASTER or EdgeTX website for firmware update instructions and necessary drivers.
- Follow the provided guides carefully to re-flash or update the firmware.
9. Specifications
| Feature | Detail |
|---|---|
| Brand | RADIOMASTER |
| Model Number | Pocket Radio |
| Item Weight | 1.19 pounds |
| Product Dimensions | 8 x 5 x 4 inches |
| Manufacturer Recommended Age | 18 years and up |
| Number of Channels | 16 |
| Special Features | Hall Effect Gimbals, Built-in LED Lights, External Module Bay |
| Frequency Range | 2.400GHz-2.480GHz |
| Water Resistance Level | Not Water Resistant |
| Compatible Devices | Speaker, Smartphone, Headphone, MP3 Player, Earphone, Tablet, Laptop (via trainer port/USB) |

Image: Technical drawing showing the dimensions of the RADIOMASTER Pocket transmitter.
10. Official Product Video
Watch this official video for a visual overview of the RADIOMASTER Pocket Hall Gimbal Transmitter's features and design.
Video: An official product video showcasing the RADIOMASTER Pocket transmitter, highlighting its compact size, Hall Gimbals, removable stick ends, foldable antenna, and other key features.
11. Warranty and Support
For warranty information, technical support, or further assistance, please visit the official RADIOMASTER website or contact their customer service directly. Keep your proof of purchase for warranty claims.
Official RADIOMASTER Store: RADIOMASTER Store on Amazon





