AMNVOLT Mini SI4732 DSP Radio Receiver User Manual

Introducció

The AMNVOLT Mini SI4732 DSP Radio Receiver is a compact and versatile multiband radio designed for enthusiasts and casual listeners alike. Featuring an ESP32-S3 main control and SI4732 DSP chip, it supports a wide range of broadcasting bands including FM, AM, LSB, and USB. Its 1.9-inch IPS color screen, built-in speaker, and headphone amplifier ensure a clear and enjoyable listening experience. This manual provides essential information for setting up, operating, and maintaining your radio.

Informació de seguretat

• No exposeu el dispositiu a temperatures extremes, llum solar directa ni humitat elevada.
• Eviteu deixar caure o sotmetre el dispositiu a forts impactes.
• Mantingueu el dispositiu allunyat de l'aigua i altres líquids.
• Use only the specified charging method (TYPE-C, non-fast charging).
• No intenteu desmuntar ni reparar el dispositiu vosaltres mateixos. Demaneu el servei tècnic a personal qualificat.
• Desfeu-vos del dispositiu i de la bateria de manera responsable d'acord amb la normativa local.

Contingut del paquet

• 1 x AMNVOLT Mini SI4732 DSP Radio Receiver
• 1 x Antenna (Telescopic Whip Antenna or Rotatable Loop Antenna, optional)

Producte acabatview

The AMNVOLT Mini SI4732 DSP Radio Receiver combines advanced technology with user-friendly design. Key components and features include:

• Main Control: ESP32-S3
• Xip DSP: SI4732
• Visualització: 1.9-inch IPS high-definition color screen (170*320 resolution)
• Àudio: Built-in 1W power cavity speaker, internal headphone ampcircuit lifier
• Connectivitat: TYPE-C charging interface, 3.5mm three-segment stereo audio interface, SMA-KE (inner hole) antenna interface
• Bateria: Capacitat de 800 mAh
• Funcions: AGC/ATT, screen backlight brightness adjustment, battery level display, firmware upgrade support, Hi-Z circuit for weak signal resolution.

Configuració

1. Càrrega del dispositiu

Connect the radio to a power source using a standard TYPE-C cable. The device supports regular charging; fast charging is not available. The battery level will be displayed on the screen.

2. Connectar l'antena

The radio comes with an SMA-KE (inner hole) antenna interface. Depending on your package, you may have a telescopic whip antenna or a rotatable loop antenna.

• Telescopic Whip Antenna: Screw the antenna firmly into the SMA connector on the radio. Extend the antenna for optimal reception.
• Rotatable Loop Antenna: Connect the loop antenna to the SMA connector. This antenna supports 360-degree rotation for directional signal reception.

Instruccions de funcionament

The radio is designed for easy operation, with most functions controlled via a single rotary encoder button.

1. Encendre/apagar

Press and hold the rotary encoder button to power the device on or off.

2. Ajust de volum

Rotate the encoder button to adjust the volume. The current volume level will be displayed on the screen.

3. Switching Receive Mode and Band

Press the encoder button to access the menu. Navigate through options like 'Mode' to select between FM, AM, LSB, or USB. Use the encoder to select your desired mode and press again to confirm. Similarly, you can select different frequency bands (HF/SW/MW/VHF).

4. Tuning and Calibration

In receive mode, rotate the encoder to tune to different frequencies. The radio also supports calibration, which can be accessed via the menu to fine-tune frequency accuracy.

5. Ajust de la brillantor de la pantalla

Access the menu by pressing the encoder button. Navigate to the 'Brightness' setting. Rotate the encoder to adjust the screen brightness from 32 to 255 levels.

6. AGC/ATT Functions

The radio supports Automatic Gain Control (AGC) and Attenuation (ATT) functions to optimize signal reception. These settings can typically be adjusted within the radio's detailed menu.

Manteniment

• Neteja: Feu servir un drap suau i sec per netejar l'exterior de la ràdio. No utilitzeu productes de neteja abrasius ni dissolvents.
• Cura de la bateria: To prolong battery life, avoid fully discharging the battery frequently. If storing the radio for an extended period, charge it to about 50% and store in a cool, dry place.
• Actualitzacions de firmware: The radio supports firmware upgrades. Refer to the official AMNVOLT website or support resources for the latest firmware and detailed update procedures. Connect the radio to a computer via the Type-C port for updates.

Resolució de problemes

• Sense energia: Ensure the battery is charged. Connect the radio to a power source via the Type-C port and try powering it on again.
• Mala recepció: Extend the telescopic antenna fully or adjust the position and orientation of the loop antenna. Check for local interference sources. Ensure you are in the correct receiving mode (AM/FM/LSB/USB) for the desired broadcast.
• Sense so: Check the volume level. Ensure headphones are properly connected if in use, or that the internal speaker is enabled.
• Problemes de pantalla: Adjust screen brightness via the menu. If the screen remains unresponsive or displays errors, try restarting the device.

Especificacions

Consells per a l'usuari

• Ús exterior: The compact size and durable ABS housing make this radio an excellent companion for outdoor activities like hiking and camping. Ensure the antenna is properly extended for best reception in remote areas.
• Headphone Experience: The built-in independent ear amplifier circuit provides a significantly louder and clearer audio experience when using headphones compared to older versions.
• Weak Signal Reception: Utilize the built-in Hi-Z circuit to enhance the resolution of weak signals, which can be particularly useful for shortwave listening.
• Optimització de la bateria: The optimized circuit design prevents significant battery drain when the device is off, improving standby time.

Garantia i Suport

For warranty information, technical support, or service inquiries, please contact the seller or refer to the official AMNVOLT weblloc web. Conserveu el rebut de compra com a comprovant de compra.