Receptor de radio DSP de banda completa SI4732 - 0,5-108 MHz FM AM SW SSB con amplificador de auriculares

The SI4732 full-band DSP radio receiver (0.5-108 MHz) supports FM, AM (MW and SW) and SSB frequencies, and features a built-in headphone amplifier. Key features include: 1. ESP32-S3 main control chip, 1.9-inch IPS high-definition color screen. 2. SI4732 DSP chip, supporting full-band broadcast, LSB, USB, AM, and FM modes. 3. Built-in 800mAh battery, providing approximately 10 hours of battery life. 4. Supports screen backlight brightness adjustment, battery level display, and AGC/ATT functions. 5. Built-in 1W speaker. Firmware upgrades are supported; users can also modify the system themselves. Integrated headphone amplifier circuitry provides a louder volume when using headphones (the first-generation product lacked a headphone amplifier circuitry, resulting in a very low volume when using headphones). Specifications: Main Control Chip: ESP-32-S3 Operating Modes: FM/AM/LSB/USB (Note: Aviation bands not supported) Receiving Bands: SW/MW/VHF Frequency Range: LW, MW, SW (150 kHz - 30 MHz), VHF (64-108 MHz), FM (0.5-108 MHz) Screen: 1.9-inch, 170 x 320 resolution Charging Port: TYPE-C (Fast charging not supported) Audio Interface: 3.5 mm stereo tri-band Antenna Interface: SMA-KE (built-in port) Battery Capacity: 800 mA Note: Due to different production batches, the printed label may vary, but this does not affect the use. Color: Black Material: ABS Package Contents: 1 * SI4732 Radio 1 * Telescopic Antenna