Upgraded Mini SI4732 Full-Band Radio Receiver with ESP32-S3
Upgraded Mini SI4732 Full-Band Radio Receiver with ESP32-S3 Master Control, 1.9-Inch IPS Color Display, Built-In Hi-Z Circuit, LSB USB AM FM Modes, AGC ATT Functions, 1W Speaker(blue)
Features:
1. Adopt for ESP32-S3 master control + for SI4732 for DSP chip, support full-band broadcast, LSB USB AM FM mode, support for AGC/for ATT function
2. Adopt 1.9-inch IPS high-definition color screen, support screen backlight brightness adjustment, support battery power display
3. Built-in 1W power cavity speaker, loud and pleasant sound quality
4. Support firmware upgrade, factory default built-in V1.01 latest firmware
5. Easy to operate: all actions can be performed with a single press/rotation of the rotary encoder button
6. Built-in headphone circuit, the volume of listening with headphones is loud
7. Built-in Hi-Z circuit can improve weak signal resolution
Specifications:
Part name: MINI for SI4732 radio
Material: abs
Color: black
Size: as shown
– Master control: for ESP-32-S3
– Working mode: FM/AM/LSB/USB (note that aviation band is not supported)
– Receiving frequency band: HF/SW/for MW/VHF
– Frequency range: LW, for MW, SW (150kHz – 30MHz), VHF (64-108Mhz)
– Screen: 1.9inch, 170*320 resolution
– Brightness: 32~255 levels, adjustable
– Charging interface: TYPE-C (cannot be charged with fast charging)
– Audio interface: 3.5mm three-stage stereo
– Antenna interface: for SMA-KE (inner hole)
– Battery capacity: 800ma
Package content:
A: 1 x MINI for SI4732 radio + 1 x telescopic antenna + circular rotating antenna
- Advanced Technology: Features ESP32-S3 master control with SI4732 chip for superior full-band reception across FM/AM/LSB/USB modes, delivering crystal-clear audio quality with built-in AGC and ATT functions for optimal signal processing in any listening environment.
- Wide Frequency Coverage: Receives comprehensive frequency range from 150kHz to 30MHz (LW/MW/SW) plus VHF 64-108MHz, making it suitable for shortwave enthusiasts, amateur radio operators, and broadcast listeners seeking global communication access.
- High-Definition Display: 1.9-inch IPS color screen with 170*320 resolution provides visual with 32-255 brightness levels adjustment, plus real-time battery indicator for enhanced user experience during extended listening .
- Enhanced Audio Performance: Built-in 1W cavity speaker delivers loud, pleasant sound quality while integrated Hi-Z circuit improves weak signal resolution; includes 3.5mm stereo headphone jack with dedicated amplification circuit for private listening.
- User-Friendly Operation: Single rotary encoder button controls all functions through intuitive press/rotation actions, supports firmware upgrades (V1.01 pre-installed), TYPE-C charging port, and includes telescopic antenna plus circular rotating antenna for optimal signal reception.
| SKU: | B0FPD4BPF5 |











