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AMNVOLT V4/V3S ATS MINI SI4732 Radio ALL Band DSP Radio FM AM SSB LSB USB Receiver, built-in Hi-Z Headphone Amplifier Circuit
AMNVOLT V4/V3S ATS MINI SI4732 Radio ALL Band DSP Radio FM AM SSB LSB USB Receiver, built-in Hi-Z Headphone Amplifier Circuit
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AMNVOLT V4 ATS MINI Radio with Headphone Amplifier LSB USB Transistor Pocket Radios Si4732 DSP Radio for Indoor Outdoor
Feature:
1.High Performance & All-Band Support: Featuring the AMNVOLT V4 ATS MINI radio with an advanced ESP32-S3 main controller and SI4732 DSP chip, this portable solution covers all broadcast bands and supports LSB USB AM FM modes for versatile listening experiences.
2.HD Display & Adjustable Brightness: The full-band DSP radio is equipped with a 1.9-inch IPS color screen that offers adjustable backlight levels and real-time battery status display, ensuring optimal visibility and intuitive control every time.
3.Powerful Volume & Superior Sound: Designed as a portable AM FM radio receiver, it features a built-in 1W cavity speaker delivering rich, loud audio, along with an upgraded earphone amplifier circuit for clear high-volume headphone listening.
4.Enhanced Signal Reception: This LSB USB transistor pocket radios model adopts a Hi-Z circuit to improve weak signal resolution, elevating your listening clarity even in challenging environments and offering reliable everyday operation.
5.Firmware Upgradable & Authentic Module: The Si4732 DSP radio allows hassle-free upgrades to the latest firmware for optimal use and comes equipped with genuine ESP32-S3-WR OOM-1-N16R8 module, guaranteeing original quality for lasting performance.
Specification:
Origin: Mainland China
Important Notice:
1. Headphones are not included in the shipment. The headphones shown in the image are for demonstrating FM antenna functionality only. Please provide your own headphones!
2. If you have selected the CNC metal casing version, please be aware that the CNC aluminum alloy material provides some shielding against wireless electromagnetic signals. While this enhances interference resistance, it may also weaken Wi-Fi signal strength. Please acknowledge this before purchasing.
V4 Upgrade Details:
1. Added shielding cover to the Si4732 receiver section to suppress electromagnetic interference; incorporated ESD protection chips at the antenna input for enhanced safety.
2. Relocated the Hi-Z circuit to the front end of the antenna path and adopted a more stable VCC_RADIO power supply to preserve signal resonance and reduce noise.
3. Added functionality to use wired headphones as an FM antenna (requires use in environments with strong FM signals and sufficiently long headphone cables for optimal performance).
4. Left and right channels have been swapped; amplifier and speaker parameters have been recalibrated to enhance audio quality.
5. Upgraded to higher-quality components: a more sturdy telescopic antenna and a better-feeling, non-slip knob cap.
Brand: AMNVOLT
Model (Hardware Version): V4
Housing Material: CNC-machined metal or ABS injection-molded plastic (two material options available)
Main Controller: ESP-32-S3
Operating Modes: FM/AM/LSB/USB (Note: Does not support aeronautical bands)
Receiving Bands: HF/SW/MW/VHF
Frequency Range: LW, MW, SW (150kHz - 30MHz), VHF (64-108MHz)
Display: 1.9-inch, 170*320 resolution
Display Brightness: 32~255 levels, adjustable
Charging Port: TYPE-C (cannot be charged with fast chargers)
Audio Jack: 3.5mm 3-pin stereo
Antenna Connector: SMA-KE (female)
Battery Capacity: 800mAh
Housing Material: Metal (CNC-machined aluminum alloy)/Plastic (two housing options available)
Product Dimensions: Approx. 80x35x20mm / 3.15x1.38x0.79 inches
Note:
Due to different monitor settings and lighting conditions, the actual color of the item may vary slightly from the pictures. Thanks for your understanding!
Please allow a 1-2 cm difference in measurements due to manual measuring.
1 x Radio
1 x Circle Antenna
1 x Telescopic Antenna
1 x Instruction Manual
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