To turn off, switch the mechanical power toggle to the OFF position. Adjusting Volume Tap the icon on the touch screen.
Before diving into the manuals, it's important to understand exactly what the ATS-25 is. At its heart is the Silicon Laboratories Si4732-A10 chip, which packs an entire multi-mode receiver into a compact 16-pin package. This chip is paired with an ESP32 microcontroller, which runs open-source software and allows for extensive customization by the user. The result is a radio with a bright, colorful touchscreen display, a solid tuning knob, an internal lithium-ion battery, and the ability to listen to everything from the broadcast FM and AM bands to longwave, shortwave, and amateur radio sideband (SSB) transmissions.
Before operating your ATS-25, verify your device specs and included accessories. Technical Specifications Silicon Labs Si4732 Display: 2.4-inch TFT color touch screen Frequency Coverage: FM: 64–108 MHz (with RDS support) LW: 153–500 kHz MW: 520–1710 kHz SW: 1730–30000 kHz
Built-in speaker and 3.5mm stereo headphone jack Antenna Input: BNC interface (50 Ohm) ats-25 radio manual pdf
is the most important physical control:
Because the ATS-25 is produced by multiple manufacturers and sellers (often under brand names like "GOOZEEZOO" or "Jstvro"), the official manual is not always easy to locate. Below is a compilation of the most reliable sources to download the user manual, categorized by version.
The ATS-25 Max SI4732 all-band radio receiver has become a staple for shortwave listeners (SWL) and amateur radio enthusiasts. This powerful, pocket-sized receiver packs a color touchscreen, lithium battery, and wide frequency coverage into an aluminum chassis. To turn off, switch the mechanical power toggle
Press the rotary knob inward to cycle through tuning step increments (e.g., 100Hz, 1kHz, 5kHz, 9kHz, 10kHz). 4. Advanced Features and SSB Operation
Excellent for shortwave and ham radio band reception (SSB/CW). The SI4732 chip offers surprisingly good, albeit sometimes too sensitive, reception. Using narrow bandwidths (e.g., 500Hz) helps manage interference.
: Expert reviews from ARRL provide additional context on setup and performance that basic manuals may miss. Quick Setup Blog Post: Mastering Your ATS-25 At its heart is the Silicon Laboratories Si4732-A10
: These are the most common unofficial manuals for the popular H-RADIO firmware updates. Scribd Repository : Several PDF versions (like v4.16) are hosted on GitHub Documentation
The ATS-25 supports multiple modes. Tap the icon to toggle between: FM: For local broadcast stations. AM: For standard medium-wave broadcasting.
The is a versatile, full-band SDR (Software Defined Radio) receiver based on the Si4732 chip. It is widely popular among amateur radio enthusiasts for its compact size, color touch screen, and ability to decode digital modes. 📘 Essential Manuals and Documentation
: Used for time synchronization (via NTP) and displaying current band propagation data. Initial Setup & Essential Operations Amateur radio receiver ATS25 max-Decoder - HARDUINO