1. Introduction
The HLFEC ATS-mini V3 is a compact and versatile pocket SSB mini radio receiver, featuring a clear ABS case and powered by an ESP32-S3 main control. It utilizes the SI4732 DSP chip to support a wide range of broadcasting modes including LSB, USB, AM, and FM across full bands. Designed for enthusiasts, it includes a built-in Hi-Z circuit for enhanced weak signal resolution and a headphone amplifier for superior audio performance. This manual provides detailed instructions for setting up, operating, and maintaining your ATS-mini V3 radio.
2. Package Contents
Before you begin, please ensure all items are present in your package:
- 1 x ATS-mini V3 Radio Receiver
- 1 x Ring Antenna
- 1 x Whip Antenna
- 1 x USB Cable (for charging)
3. Setup
3.1. Charging the Device
The ATS-mini V3 radio has a built-in 800 mAh rechargeable battery. To charge the device:
- Connect the provided USB cable to the TYPE-C charging interface on the radio.
- Connect the other end of the USB cable to a standard USB power source (e.g., computer USB port, USB wall adapter).
- The screen will indicate charging status. Note that fast charging is not supported.
3.2. Antenna Connection
The radio comes with two types of antennas: a ring antenna and a whip antenna. Choose the appropriate antenna based on your reception needs.
- Whip Antenna: Ideal for general reception, especially for VHF bands. Screw the whip antenna into the antenna connector on the top of the radio.
- Ring Antenna: Suitable for enhancing weak signal resolution, particularly for HF/SW/MW bands. Screw the ring antenna into the antenna connector.
4. Operating Instructions
4.1. Power On/Off
Locate the power button (or knob) on the device. Press and hold to power on or off the radio. The 1.9-inch IPS HD color screen will illuminate upon power-on.
4.2. Frequency Tuning and Mode Selection
The radio supports LSB/USB/AM/FM modes across various frequency bands (HF, SW, MW, VHF). Use the control knob to navigate menus and adjust frequencies.
- Tuning: Rotate the main knob to adjust the receiving frequency. The step size can typically be configured in the settings.
- Mode Selection: Access the menu (usually by pressing the knob or a dedicated button) to select between LSB, USB, AM, and FM modes.
- Band Switching: The radio may automatically switch bands or allow manual selection. Note that headphones will mute briefly when switching frequency bands.
4.3. Headphone Usage
The ATS-mini V3 includes an earphone amplifier for enhanced audio. Connect your 3.5mm three-band stereo headphones to the audio interface for private listening.
5. Maintenance
5.1. Cleaning
To clean the clear ABS case and screen, use a soft, dry, lint-free cloth. For stubborn smudges, slightly dampen the cloth with water. Avoid using harsh chemicals or abrasive materials.
5.2. Battery Care
To prolong battery life:
- Avoid fully discharging the battery frequently.
- Store the radio in a cool, dry place when not in use for extended periods.
- Charge the battery periodically if stored for a long time to prevent deep discharge.
5.3. Firmware Updates
The device's firmware can be updated. Refer to the manufacturer's website or support resources for instructions on how to perform firmware updates to ensure optimal performance and access to new features.
6. Troubleshooting
- No Power: Ensure the battery is charged. Connect the USB cable and try powering on again.
- Poor Reception:
- Check antenna connection.
- Try a different antenna (whip for VHF, ring for HF/SW/MW).
- Move to an open area away from interference sources (e.g., computers, large metal objects).
- Adjust the frequency fine-tuning.
- No Sound from Headphones:
- Ensure headphones are fully plugged into the 3.5mm audio jack.
- Check headphone volume settings on the radio.
- Test headphones with another device to confirm they are working.
- Screen Not Responding: Try restarting the device. If the issue persists, ensure the battery is adequately charged.
7. Specifications
| Feature | Specification |
|---|---|
| Main Control | ESP-32-S3 |
| DSP Chip | SI4732 |
| Receiving Frequency Bands | HF, SW, MW, VHF |
| Supported Modes | LSB, USB, AM, FM |
| Screen | 1.9 inches, 170*320 IPS HD color screen |
| Charging Interface | TYPE-C (fast charging not available) |
| Audio Interface | 3.5mm three-band stereo |
| Battery Capacity | 800 mAh |
| Estimated Battery Life | 10 hours or more |
| Casing Material | ABS (Clear) |
| Product Dimensions | Approx. 73.00 x 32.00 x 12.00 mm (2.87 x 1.26 x 0.47 inches) |
| Battery Included | Yes |
| DIY Supplies Category | Electrical |
8. Warranty and Support
Your ATS-mini V3 radio is covered by a warranty that includes free returns within 90 days. Additionally, the product is eligible for fast delivery guarantees, offering refunds for issues such as delayed delivery, lost packages, or damaged items. For specific warranty claims or technical support, please refer to the seller's contact information or the platform's customer service portal.
9. User Tips
No specific user tips from reviews or Q&A were available at this time. For best performance, ensure your antenna is fully extended and positioned away from potential sources of electromagnetic interference.
