Upgraded Version of Mini Full-band DSP Radio Receiver Built-in Hi-Z
Built-in ear discharge circuit
Support FM AM SSB LSB USB mode
Features：
1. Adopts ESP32-S3 master control+SI4732 DSP chip, supports full-band broadcasting, LSB USB AM FM mode, and supports AGC/ATT function
2. Adopts 1.9 inch IPS high-definition color screen, supports screen backlight brightness adjustment, and supports battery level 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 ear discharge circuit, the volume of listening with headphones is loud
7. Built-in Hi-Z circuit, which can improve the analysis of weak signals
parameter：
-Main control: 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: 1.9inch, 170*320 resolution
-Brightness: 32~255 levels, adjustable
-Charging interface: TYPE-C (fast charging cannot be used for charging)
-Audio interface: 3.5mm three-stage stereo
-Antenna interface: SMA-KE (inner hole)
-Battery capacity: 800ma
Shipping list:
1 x MINI SI4732 radio
2 x antenna (rod telescopic antenna+ring rotating antenna optional)
