DUMBORC DDF-350

Overview

The DUMBORC DDF-350 is a 10-channel radio control transmitter designed for various RC applications including cars, boats, and robots. This quick start guide provides essential information on its features, functions, and basic operation.

Key Features

• New frequency hopping communication technology.
• Supports tank mixing control and custom mixing program control.
• Features head tracking, wireless coach, and simulator ports.
• Independent setting of servo direction and travel for all channels.
• Customizable direction and throttle curves.
• Real-time model battery voltage and RSSI telemetry.
• 10 sets of model data stores.
• 350 meters ground control distance (conventional receiver with signal return at 40 meters).
• Dial adjustment parameters for beginner-friendly control.
• USB upgrade support.
• Compatible with all Dumbo receivers.

Channel Functions

The DDF-350 transmitter features a roller knob for navigation and selection, a Power/Menu/Back button, and 10 distinct channels (CH1-CH10). It also includes dedicated ports for simulator and head tracking, and an upgrade/PPM input/output.

To power on the transmitter, long press the power button for approximately 2 seconds. This will lead to the main interface where Sub-trim for CH1 and CH2 can be adjusted using the roller knob. Settings can be locked by holding down the unlock icon to release the settings. Press the power button again to access the main screen of transmitter settings.

DDF-350 Basic Functions Menu

Receiver Function and Binding

The transmitter and receiver are typically bound by default. For new receiver accessories, follow these binding steps:

1. Place the transmitter and receiver close to each other (within about 60 cm).
2. Turn on both the transmitter and the receiver.
3. Press and hold the bind button for more than 3 seconds, then release. The LED will flash quickly, indicating that binding is in progress.
4. Binding is complete when the LED stops flashing and remains solid. If unsuccessful, the LED will flash slowly; repeat the steps.

Note: Close proximity between the transmitter and receiver during binding can cause signal block, leading to unsuccessful binding or signal loss. Move them further apart if signal loss occurs after binding.

Advanced Settings

Key Type

Channels CH3, CH4, and CH8-10 on the remote control can be configured for locking or inching signals. Locking signal means the key is on when pressed and off when released. Inching signal means the button is on while pressed and off upon release.

Steering Throttle Brake Curve

Steering curve: Adjusts the sensitivity of the steering servo around the neutral position.

Throttle/brake curve: Makes throttle operation quicker or milder.

Gyro Mixing Control

The receiver's gyroscope is off by default. To enable and adjust its sensitivity, navigate to the gyroscope mixing control option in the transmitter. Sensitivity can be adjusted using VR-5, VR-6 knobs, or by manually entering a value. Increasing the value of the adjustment knob for CH8 increases gyroscope sensitivity. If the ratio value is 0, the gyroscope is not enabled. An enable switch can be used to easily activate/deactivate the gyroscope function.

Gyro Reverse

To check gyroscope correction, manually turn the RC vehicle left and right. The wheels should correct to the right when the car is turned left, and to the left when turned right. If the correction is reversed, quickly press the binding key twice (each interval less than 1 second); the red light will flash twice continuously, and the gyroscope phase correction will be completed.

Power Settings

Users can configure idle alarm sound prompts and automatic shutdown times. The transmitter supports AA batteries and 2-3S batteries. Select appropriate parameters based on the battery model. The transmitter will indicate low voltage when the set percentage is reached, prompting battery replacement. If the displayed battery voltage is inconsistent with the actual voltage, it can be manually calibrated.

FCC Compliance Statement

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

This device has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This device generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular installation. If this device does cause harmful interference to radio or television reception, which can be determined by turning the device off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• • Reorient or relocate the receiving antenna.
• • Increase the separation between the device and receiver.
• • Connect the device into an outlet on a circuit different from that to which the receiver is connected.
• • Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Firmware Upgrades and Support

Due to firmware upgrades and new functions, the product content may be revised in new versions of the manual without further notice. For more information, users should refer to the official website of Dumbo, Tiktok enterprise number, or QQ group.