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YX-OS33 SI4732 Mini Radio Receiver with ESP32-S3, Supports AM/FM/SW, Digital Tuning DIY Radio Kit
YX-OS33 SI4732 Mini Radio Receiver with ESP32-S3, Supports AM/FM/SW, Digital Tuning DIY Radio Kit
Обычная цена
$18.00 USD
Обычная цена
$35.00 USD
Цена со скидкой
$18.00 USD
Количество
Не удалось загрузить сведения о доступности самовывоза
SI4732 Mini Radio Receiver – ESP32-S3 DSP All-Band Receiver
Product Overview
SI4732 Mini Receiver is a compact all-band radio receiver based on the SI4732 DSP radio chip and ESP32-S3 controller. It supports reception of SW, LW, AM and FM bands as well as single sideband modes. The device features a color display and a built-in rechargeable battery, making it suitable for learning purposes, radio enthusiasts and everyday listening.
Core Specifications
| Parameter | Specification |
|---|---|
| Controller | ESP32-S3 |
| Radio Chip | SI4732 |
| Battery | 800 mAh Li-ion |
| Operating Time | More than 12 hours (40% volume level) |
| Power Supply | USB Type-C (standard chargers supported) |
| Display | 1.9 inch color display |
| Audio Output | 3.5 mm headphone jack |
| Built-in Speaker | No |
| Enclosure Material | Plastic (3D printed) |
| Dimensions | 73 × 32 × 18 mm |
Supported Bands & Modes
| Category | Details |
|---|---|
| Bands | SW / LW / AM / FM |
| Modes | SSB / LSB / USB / AM / FM |
Frequency Coverage
| Band | Frequency Range |
|---|---|
| FM | 64 – 108 MHz |
| AM | 520 – 1710 kHz |
| LW | 153 – 279 kHz |
| SW | 2.3 – 26.1 MHz |
Control & Operation
- Power on via side switch
- Long press rotary encoder to adjust volume
- Short press to confirm selection
- Double press to enter menu
- Automatic station scanning supported
- Channel memory supported
- Sleep timer with minute-based setting
Important Notes
- The enclosure is made by 3D printing; minor cosmetic imperfections may be present
- An external mixer is required for aviation band reception
- Reception quality depends on antenna performance and local signal conditions
- Standard 5V USB chargers are recommended
- No built-in speaker; external amplifier or headphones can be connected
- Avoid mechanical shocks
Package Contents
| Item | Quantity |
|---|---|
| SI4732 Mini Receiver (factory-assembled board) | 1 |
| Antenna | Included |
Shipping Information
Orders are prepared within 48 hours. Small-parcel dedicated logistics are used.
- USA / Europe: approximately 8–14 days (subject to variation)
- Any abnormal situations will be communicated by email promptly
Returns & After-Sales Policy
If you have any questions after receiving the product, please contact us immediately. Returns or exchanges will be handled according to our after-sales policy.
Documentation & Technical Support
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