AMNVOLT Mini Si4732 Full Band DSP Radio Receiver ESP32-S3 Pocket Radio Support FM AM MW SW SSB LSB USB Mode Upgraded Version with 3D Printed Shell
196
Direct purchase from the factory 
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AMNVOLT 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.
Advantages of upgrade:
1. Brand-new hardware structure, adding independent headphone amplifier circuit, solving the problem of low headphone volume in the first generation.
2. Brand-new system: Added screen brightness adjustment function, worry-free outdoor use; added quick access to volume adjustment page function; added power digital display function; added bandwidth adjustment function, etc.
3. High-quality production process: Some manufacturers mix inferior accessories in the old version, and we use all new parts for production
Features:
1. Using ESP32-S3 main control, 1.9-inch IPS high-definition color screen
2. Using SI4732 DSP chip, supports full-band broadcast, LSB USB AM FM mode.
3. Built-in 800 mAh battery, battery life is about 10 hours or more
4. Support screen backlight brightness adjustment, battery power display, AGC/ATT
5. Built-in 1W power speaker
6. Support firmware upgrade, users can also modify the system by themselves
7. Built-in headphone amplifier circuit, the volume is loud when listening with headphones (the 1st generation product does not have a headphone amplifier circuit, and the volume is very low when using headphones)
Parameters:
Master control: ESP-32-S3
Working mode: FM/AM/LSB/USB (note, does not support aviation band)
Receiving frequency band: HF/SW/MW/VHF
Frequency range: LW, MW, SW (150kHz - 30MHz), VHF (64-108Mhz)
Screen: 1.9inch, 170*320 resolution
Charging interface: TYPE-C (cannot use fast charging)
Audio interface: 3.5mm three-band stereo
Antenna interface: SMA-KE (inner hole)
Battery capacity: 800ma
Package includes:
1 x MINI SI4732 radio
1 x Antenna (telescopic antenna/ring rotating antenna optional)
Advantages of upgrade:
1. Brand-new hardware structure, adding independent headphone amplifier circuit, solving the problem of low headphone volume in the first generation.
2. Brand-new system: Added screen brightness adjustment function, worry-free outdoor use; added quick access to volume adjustment page function; added power digital display function; added bandwidth adjustment function, etc.
3. High-quality production process: Some manufacturers mix inferior accessories in the old version, and we use all new parts for production
Features:
1. Using ESP32-S3 main control, 1.9-inch IPS high-definition color screen
2. Using SI4732 DSP chip, supports full-band broadcast, LSB USB AM FM mode.
3. Built-in 800 mAh battery, battery life is about 10 hours or more
4. Support screen backlight brightness adjustment, battery power display, AGC/ATT
5. Built-in 1W power speaker
6. Support firmware upgrade, users can also modify the system by themselves
7. Built-in headphone amplifier circuit, the volume is loud when listening with headphones (the 1st generation product does not have a headphone amplifier circuit, and the volume is very low when using headphones)
Parameters:
Master control: ESP-32-S3
Working mode: FM/AM/LSB/USB (note, does not support aviation band)
Receiving frequency band: HF/SW/MW/VHF
Frequency range: LW, MW, SW (150kHz - 30MHz), VHF (64-108Mhz)
Screen: 1.9inch, 170*320 resolution
Charging interface: TYPE-C (cannot use fast charging)
Audio interface: 3.5mm three-band stereo
Antenna interface: SMA-KE (inner hole)
Battery capacity: 800ma
Package includes:
1 x MINI SI4732 radio
1 x Antenna (telescopic antenna/ring rotating antenna optional)
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