AMNVOLT V4 ATS MINI SI4732 Radio User Manual

1. Product Overview

The AMNVOLT V4 ATS MINI Radio is a high-performance, portable full-band DSP radio receiver designed for versatile listening experiences. It features an advanced ESP32-S3 main controller and SI4732 DSP chip, covering all broadcast bands including FM, AM, LSB, and USB modes. The V4 model includes several upgrades for enhanced performance and user experience.

2. Safety Warnings and Precautions

• Read Instructions: Always read all instructions carefully before using this product and keep this manual for future reference.
• Intended Use: Do not use the product for any purpose other than its intended use. Misuse may cause injury, damage to the product, or other hazards.
• Children Safety: Keep this product out of the reach of children under 3 years, unless under direct adult supervision. Small parts may cause choking hazard. Not suitable for children under 36 months.
• No Disassembly: Do not disassemble, modify, or repair the product by yourself. Improper operation may cause electric shock, fire, or product failure. Contact professional maintenance personnel if needed.
• Avoid Moisture: Do not use the product outdoors during rain or in high-humidity environments. Avoid contact with liquids to prevent electric shock.
• Power Safety: Before use, ensure the power outlet is intact and undamaged. Unplug the power supply when not in use or during cleaning.
• Prevent Dropping: Avoid dropping the product from elevated positions to prevent damage.
• Disposal: Dispose of the product and its packaging in accordance with EU WEEE (Waste Electrical and Electronic Equipment) Directive 2012/19/EU and RoHS Directive 2011/65/EU. Do not discard as household waste.
• Traffic Use: Not to be used in traffic. This product requires high skills to avoid falls or collisions.
• Irritation: Contains substances that may cause irritation if misused. Follow the instructions strictly.

3. Setup and Installation

1. Unpacking Inspection: After opening the package, verify that all components are present and undamaged. The package should include:
   • 1 x Radio
   • 1 x Circle Antenna (Donut WB Antenna)
   • 1 x Telescopic Antenna
   • 1 x Instruction Manual
2. Antenna Connection:
   • The radio supports both a telescopic antenna and a Donut WB Antenna.
   • Connect the desired antenna to the SMA-KE (female) antenna connector on the radio.
   • The Donut WB Antenna supports 360-degree rotation for better reception.
   • The V4 model includes an improved, more sturdy telescopic antenna.

   

3. Powering On and Charging:
   • The radio has a built-in 800mAh battery.
   • Charge the device using the TYPE-C charging port. Note that fast chargers are not supported.
   • Ensure the power outlet is intact and undamaged before charging.
4. Initial Setup (V4 Upgrades):
   • The V4 model features a shielding cover for the Si4732 receiver section to suppress electromagnetic interference and ESD protection chips at the antenna input for enhanced safety.
   • The Hi-Z circuit has been relocated to the front end of the antenna path, and a more stable VCC_RADIO power supply is used to preserve signal resonance and reduce noise.
   • Wired headphones can be used as an FM antenna (requires strong FM signals and sufficiently long headphone cables for optimal performance).

4. Operating Instructions

Operate the device according to the instructions provided for normal functionality.

4.1 Basic Operation

• Power On/Off: Use the designated power button to turn the radio on or off.
• Interface: The radio features a user-friendly, intuitive interface design suitable for all experience levels.
• Display: The 1.9-inch IPS color screen shows real-time battery status and can have its backlight adjusted (32~255 levels) for optimal visibility.
• Knobs: The V4 model includes high-quality aluminum alloy knobs for precise control.

4.2 Modes and Frequency Range

The AMNVOLT V4 ATS MINI Radio supports the following operating modes and frequency ranges:

• Operating Modes: FM, AM, LSB, USB (Note: Does not support aeronautical bands).
• Receiving Bands: HF/SW/MW/VHF.
• Frequency Range: LW, MW, SW (150kHz - 30MHz), VHF (64-108MHz).

4.3 Settings and Adjustments

The radio offers various settings for customization and optimal performance:

5. Cleaning and Maintenance

• Cleaning: Wipe off surface dust or stains promptly after use with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
• Storage: When not in use, store the product in a dry, well-ventilated location, away from direct sunlight and extreme temperatures.
• Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in active use.

6. Troubleshooting

• No Power: Ensure the device is fully charged. Check the TYPE-C charging cable and power source for proper connection.
• Poor Reception:
  • Ensure the antenna is securely connected and fully extended (for telescopic antenna).
  • Adjust the position and orientation of the antenna, especially the 360-degree rotatable Donut WB Antenna, for optimal signal.
  • If using wired headphones as an FM antenna, ensure the headphones are plugged in and the cable is sufficiently long and positioned for best reception.
  • Move to an area with better signal strength, away from potential interference sources.
• Weak Wi-Fi Signal (CNC Metal Casing): If you have selected the CNC metal casing version, be aware that the aluminum alloy material provides some shielding against wireless electromagnetic signals, which may weaken Wi-Fi signal strength. This is normal behavior for this material.
• Audio Issues: If audio is distorted or low, check the volume settings. Ensure headphones are properly connected if in use. The V4 model has recalibrated amplifier and speaker parameters for enhanced audio quality.
• Device Malfunction: If the device exhibits unusual behavior or fails to operate, do not attempt to disassemble or repair it yourself. Contact professional maintenance personnel.

7. Specifications

8. User Tips

• Choosing Casing: If you opt for the CNC metal casing, be aware that while it enhances interference resistance, it might slightly weaken Wi-Fi signal strength due to the aluminum alloy material's shielding properties.
• FM Antenna Usage: For optimal FM reception using wired headphones as an antenna, ensure you are in an area with strong FM signals and use headphones with sufficiently long cables.
• Charging Best Practices: Always use a standard TYPE-C charger. Avoid fast chargers as the device is not compatible with them.
• Firmware Updates: Regularly check for and apply the latest firmware updates to ensure optimal performance and access to new features.
• Outdoor Use: The compact size and robust design make it an excellent companion for outdoor activities like hiking and camping.

9. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the official product website or contact your retailer. Keep your purchase receipt as proof of purchase.

A detailed user manual in PDF format is available for download: User Manual (PDF)