V4 ATS SI4732 Radio FM AM SSB LSB USB Receiver Band DSP Radio Built-in6714
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 (this requires 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 retuned to improve sound quality.
Controller: for ESP-32-
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: 800mAh
(The product printed words depending on the batch, but this does not affect use)
The product contains battery accessories, Please keep the product out of reach of children to avoid accidental ingestion!
Color: As Shown
Material: ABS
Package Contents:
1*SI4732 Radio
1*Circular Antenna
1*Antenna
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 (this requires 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 retuned to improve sound quality.
Controller: for ESP-32-
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: 800mAh
(The product printed words depending on the batch, but this does not affect use)
The product contains battery accessories, Please keep the product out of reach of children to avoid accidental ingestion!
Color: As Shown
Material: ABS
Package Contents:
1*SI4732 Radio
1*Circular Antenna
1*Antenna
