Upgraded HIZ Mini SI4732 Full Band DSP Pocket Radio FM AM (MW/SW) SSB (LSB/USB) Modes Built in Headphone Amp Circuit

Mini SI4732 full band DSP radio receiver pocket radio supports FM AM (MW and SW) and SSB (LSB and USB) modes upgraded version built-in headphone amplifier circuit

characteristic:

1. Adopting ESP32-S3 main control 1.9-inch IPS high-definition color screen

2. Use SI4732 DSP chip support broadcasting full band LSB USB AM FM mode.

3. Built in 800mAh battery with a battery life of about 10 hours or more.

4. Support screen backlight brightness adjustment support battery level display support AGC/ATT

5. Built in 1W power speaker

6. Supports firmware upgrades and users can also modify the system themselves

7. Built in headphone amplifier circuit the volume is loud when listening with headphones (the first generation product does not have headphone amplifier circuit so the volume is very low when using headphones)

Parameters:

Main controller: ESP-32-S3

Working mode: FM/AM/LSB/USB (note aviation band is not supported)

Receiving frequency band: HF/SW/MW/VHF

Frequency range: LW MW SW (150kHz – 30MHz)，VHF(64-108Mhz)

Screen: 1.9 inches 170 * 320 resolution

Charging interface: TYPE-C (cannot use fast charging)

Audio interface: 3.5mm three segment stereo

Antenna interface: SMA-KE (inner hole)

Battery capacity: 800mA

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