ATS MINI V4 Radio Full-band DSP Radio 1.9-inch IPS Screen FM AM SSB Receiver Si4732 Chip Dual Antennas

Specifications:
- Model (Hardware Version): V4
- Housing Material: CNC metal or ABS injection molding, two housing materials available
- Controller: ESP-32-S3
- Operating Modes: FM/AM/LSB/USB (Note: Airband is not supported)
- Receiving Bands: HF/SW/MW/VHF
- Frequency Range: LW, MW, SW (150kHz - 30MHz), VHF (64-108MHz)
- Screen: 1.9-inch, 170*320 resolution
- Screen Brightness: Adjustable from 32 to 255 levels
- Charging Port: TYPE-C (Cannot be charged with a fast charger)
- Audio Port: 3.5mm three-way stereo
- Antenna Port: SMA-KE (female)
- Battery Capacity: 800mA
Features:
1. Utilizes the ESP32-S3 controller and SI4732 DSP chip, supporting all-band broadcasting, LSB USB AM/FM modes, and AGC/ATT.
2. Features a 1.9-inch IPS high-definition color screen with adjustable backlight brightness and battery level display.
3. Built-in 1W cavity speaker for loud and pleasant sound quality.
4. Upgradable to the latest firmware. The factory-installed firmware is at least VER. 2.3.1. (Due to frequent firmware updates, please update to the latest firmware according to the manual upon receipt to maintain the latest user experience.)
5. Built-in headphone amplifier circuitry ensures loud listening with headphones.
6. Built-in Hi-Z circuitry improves weak signal resolution.
7. Uses the original ESP32 module (ESP32-S3-WROOM-1-N16R8), not the modules used in other clones.
V4 Upgrades:
1. A shield has been added to the Si4732 receiver to suppress electromagnetic interference; an ESD device has been added to the antenna input to protect the chip.
2. The Hi-Z circuit has been moved to the front of the antenna path and uses the more stable VCC_RADIO power supply to preserve signal resonance and reduce noise.
3. The ability to use wired headphones as an FM antenna has been added (headphones are not included in the shipping package and must be provided by the buyer; they require use in an environment with a strong FM signal and a long headphone cable for optimal performance).
4. The left and right audio channels have been swapped; the amplifier and speaker parameters have also been re-adjusted to improve sound quality.
5. More expensive and superior accessories have been replaced: a more telescopic antenna and a non-slip knob cap with a better feel.
Package Included:
1 x AMNVOLT V4 Radio
2 x Antennas (Telescopic Antenna/Rotary Antenna)
Notes:
1. Earphones are not included. The earphones in the image are only for demonstration of the FM antenna function. Please bring your own earphones!
2. If you choose the CNC metal housing, the CNC aluminum alloy material has a certain shielding effect on radio electromagnetic signals. While this improves interference reception, it may also weaken the Wi-Fi signal connection. Please be aware of this before purchasing.