1. Introduction
This manual provides instructions for the safe and efficient use of your YUSTDA AC-DC Power Adapter, model TNS30W-xy. This power adapter is designed to provide reliable power to compatible Yaesu and Standard Horizon radio models. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Information
To ensure safe operation and prevent damage, observe the following safety precautions:
- Overload Protection: The adapter features built-in overload protection. Do not exceed the specified wattage (45 watts).
- Over-charge/discharge Protection: Designed to protect connected devices from over-charging or over-discharging.
- Overheating Protection: Equipped with a smart chip to prevent overheating. Ensure adequate ventilation around the adapter during use.
- Short-circuit Protection: Provides protection against short circuits.
- Anti-Interference: Constructed with isolation materials to minimize interference.
- Use only with devices listed as compatible. Refer to the "Specifications" section for a list of compatible models.
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Do not disassemble or attempt to repair the adapter. Contact qualified personnel for service.
- Keep out of reach of children.
- Unplug the adapter from the power outlet when not in use for extended periods.
Caution: Risk of electric shock. Dry location use only. For indoor use only.
3. Package Contents
Verify that all items are present in the package:
- 1 x YUSTDA AC-DC Power Adapter (Model: TNS30W-xy)
4. Setup
Follow these steps to set up your power adapter:
- Inspect the Adapter: Before connecting, visually inspect the adapter and its cable for any signs of damage. Do not use if damaged.
- Connect to Device: Plug the barrel connector end of the adapter cable into the charging port of your compatible Yaesu or Standard Horizon radio.
- Connect to Power Outlet: Insert the AC plug of the adapter into a standard wall power outlet (100-240VAC, 50/60Hz).
- Verify Connection: Ensure both connections are secure. The device should indicate that it is receiving power or charging.

The image above shows the YUSTDA AC-DC Power Adapter, highlighting its compact design and the attached power cord with a barrel connector. This is the unit you will connect to your radio and a wall outlet.

This image illustrates the power adapter plugged into a standard power strip, ready to supply power to a connected device. Ensure the power strip or wall outlet is easily accessible.
5. Operating Instructions
Once the adapter is properly connected to both the power outlet and your compatible radio, it will begin to supply power or charge the device's battery. No further user interaction is typically required for basic operation.
- The adapter is designed for continuous operation within its specified voltage and wattage limits.
- Monitor your device's charging indicator to confirm proper function.
- Disconnect the adapter from the power source and the device when charging is complete or when the device is not in use.
6. Maintenance
The YUSTDA AC-DC Power Adapter requires minimal maintenance:
- Cleaning: Disconnect the adapter from all power sources before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or solvents.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures when not in use. Avoid tightly coiling the cable to prevent damage.
- Inspection: Periodically inspect the cable and adapter housing for any signs of wear, cuts, or damage. If damage is observed, discontinue use immediately.
7. Troubleshooting
If you encounter issues with your power adapter, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not charging/powering on. |
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| Adapter feels excessively hot. |
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| Intermittent power supply. |
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If the problem persists after attempting these solutions, contact customer support for further assistance.
8. Specifications
| Brand | YUSTDA |
| Model | TNS30W-xy |
| Input Voltage | 100-240VAC, 50/60Hz |
| Wattage | 45 watts |
| Cable Length | 10 feet (approximately 3 meters) |
| Connector Type | Barrel Connector |
| Special Features | Over current protection, Total power protection, Over voltage protection, Short Circuit Protection |
| Compatible Devices | Yaesu Standard Horizon Radio models: HX890, HX150, HX210, HX300, HX380, HX400, HX400IS, HX407, HX870, HX40, HX270s, HX280s, HX290, HX350s, HX370s, HX460s, HX470s, HX471s, HX500s, HX600s, HX750s, HX751, HX850s, HX851 |
| Certifications | FCC, CE, RoHS |
9. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact YUSTDA customer service directly. Keep your purchase receipt as proof of purchase.
Manufacturer: YUSTDA