The ATS-25 is a portable, all-band radio receiver built on the high-performance Si4732 chip. Known for its compact aluminum alloy case and 2.4-inch (or larger) color touchscreen, it has become a favorite for amateur radio enthusiasts and shortwave listeners. Because these radios are often sold under various brands (like Harduino, Buloti, or generic labels), finding the correct ATS-25 radio manual PDF is essential for mastering its deep feature set. Key Features and Specifications
Frequency Coverage: Full-band reception including FM (64–108MHz), LW (153–500kHz), MW (522–1710kHz), and SW (1.73–30MHz). Modes: Supports AM, LSB, USB, CW, and FM.
Decoding Capabilities: High-end versions (like the Max-Decoder) can decode digital modes including FT8, FT4, RTTY, and Morse code.
Hardware: Includes a built-in 3000mAh to 5000mAh lithium battery, a Type-C charging port, and a BNC antenna interface.
Connectivity: Many models feature Wi-Fi for time synchronization and propagation data, as well as Bluetooth for external audio. Where to Download the ATS-25 Manual PDF
You can find and download official and community-authored manuals at the following locations: Download - HARDUINO
Download - HARDUINO. Search. Search. Download files software H-RADIO ESP32 SI473x (ATS25..., ATS120..., ATS200..., ATS-Decoder..., Amateur radio receiver ATS25 max-Decoder - HARDUINO
Based on reviews and documentation of the ATS-25/ATS-25 Max radio and its accompanying documentation, the manual (often available in PDF format, particularly for the H-RADIO 4.16/4.17 Air Firmware
versions) is a crucial, high-quality guide necessary to navigate this complex SDR-based receiver. Here is a full review of the ATS-25 radio and its documentation. 1. Manual Quality and Content (The PDF/Printed Manual) Comprehensive Coverage:
The manual (often 20+ pages) is far superior to typical, vague manuals accompanying Chinese-made electronics. It is described as well-printed and comprehensive. Visual Guides:
It includes clear, detailed color pictures of the touch screen with legends explaining the functions, which is crucial due to the dense menu system. Key Topics Covered:
Steps for activation, Wi-Fi configuration, and touch screen calibration. Navigation:
Detailed instructions on using the VFO knob and touchscreen to change bands, modes (AM, SSB, CW, FM), and bandwidths. Digital Decoding: Explanations for setting up FT8, FT4, and CW decoding. Advanced Features: ats-25 radio manual pdf
Information on RDS (for FM), "Retro" S-meter, and spectrum scope features. Drawbacks:
Some users reported that while the English has improved, it can still have "a little Italian" or confusing phrasing (likely translated from Russian). Recommendation: It is highly advised to read the manual thoroughly before powering up the radio to avoid frustration. 2. Radio Performance & Technical Review ( ATS-25 Max
A 4-inch (or 2.8-inch depending on model) touchscreen, aluminum alloy shell, and a large rotary encoder. Sensitivity & Selectivity:
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.
Comes with a telescopic rod for FM and an SMA connector for a Wi-Fi antenna.
Note: A dedicated, high-quality long-wire or loop antenna is highly recommended for shortwave/HF listening Internal Noise:
Some users report internally generated noise, which is common in ESP32-based devices. Using an external, well-matched antenna (e.g., YouLoop) can mitigate this. Digital Decoding:
Capable of decoding FT8 and other modes when connected to Wi-Fi.
Features a Beat Frequency Oscillator for fine-tuning, labeled in the menu.
5000 mAh internal battery provides good portability for hours of use. 3. Pros and Cons of the ATS-25 Max New ATS25 Ultra Unbox & Testing
The ATS-25 radio manual PDF is more than just a booklet; it is the key to transforming a confusing, button-laden gadget into a professional-grade shortwave listening station. Whether you are chasing DX stations on 15 meters or logging local AM traffic, the manual holds the secrets to filters, memories, and calibration.
Do not rely on intuition. Go to GitHub or Groups.io, download the latest revision, and keep it on your phone’s home screen. Your ATS-25 will sing when you know the right buttons to push. The ATS-25 is a portable, all-band radio receiver
Meta Description: Need the ATS-25 radio manual PDF? Download official and community guides for the ATS-25 Max, Plus, and Pro. Fix SSB, memory saves, and firmware updates now.
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Searching for the official ATS-25 radio manual can be tricky because it is an open-source hardware project with many variations (like the ATS-25 Max, ATS-25X1, and ATS-25X2). Most users rely on community-maintained PDFs based on specific firmware versions. 📥 Manual & PDF Resources ATS-25 MAX User Manual
: A comprehensive guide for the "Max" version with a 2.4" touch screen and DSP. H-RADIO v4.15/4.17 Air Firmware Manual
: 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
: Technical documentation and update instructions for the ESP32-based ATS-Mini variant can be found on 🛠️ Essential Quick-Start Guide ATS25AMP User Manual Overview | PDF | Frequency Modulation
(and its variants like the ATS-25 Max ) is a full-band radio receiver based on the
microcontroller. It is widely recognized for its 2.4-inch color touchscreen and broad frequency coverage. Official & Firmware Manuals (PDF) Because the
is an open-source-based project with multiple firmware versions, the "manual" often depends on which firmware your device is running (e.g., Harduino vs. standard): Harduino H-RADIO Manual (v4.16/4.17)
: This is the most comprehensive guide for devices running the popular Russian firmware. It covers digital decoding (FT8, RTTY), Wi-Fi settings, and the "retro scale" mode. H-RADIO 4.16 User Manual PDF H-RADIO 4.17 (ATS25AMP) Overview ATS-25 Max Full Band User Manual
: A standard guide for the "Max" hardware version, detailing basic touchscreen navigation and frequency entry. Si4732 ATS-25 MAX Manual (Device Report) ATS-25X2 WiFi Version Manual
: Specifically for the version with networking capabilities. ATS25X2 WiFi Radio Overview & Setup Key Operations & Features Si4732 ATS-25 MAX Full Band Radio Receiver User Manual Key Features
The ATS-25 radio manual PDF is a critical resource for users of the popular Si4732-based all-band receiver. Unlike typical brief pamphlets, recent versions of the manual (such as those for the ATS-25 Max Decoder II
) have been praised by reviewers for their clarity, high-quality printing, and detailed legends. Key Manual Highlights & Sections HAMGEEK ATS25 Pro+ SDR Receiver User Manual
I searched for the specific file "ats-25 radio manual pdf" but could not directly retrieve or attach the PDF.
However, I can point you to the most reliable sources where you can download the official manual for the ATS-25 (or ATS-25 Max / ATS-25+) radio, a popular DSP-based multi-band receiver.
The ATS-25 covers 100 kHz to 30 MHz (continuous) and also includes the FM broadcast band (64-108 MHz). However, a strange note in the manual explains that the amateur radio 40-meter band (7.0-7.2 MHz) is often the strongest due to the physical length of the included whip antenna. The manual teaches you how to compensate for lower bands using an external wire.
The ATS-25 is manufactured by several different vendors (including Radiwow and various Chinese OEMs), meaning that a single, universal manual often does not come in the box. Most buyers receive a small, poorly translated pamphlet or no physical manual at all. This is why the ats-25 radio manual pdf is one of the most downloaded amateur radio documents online.
Do not trust random file-sharing sites. Here are the safest, most reliable sources for the official PDF:
Warning: Ensure the PDF you download matches your specific hardware version. The ATS-25 (original), ATS-25A (with Bluetooth), ATS-25B (with updated button layout), and ATS-25 Max (larger screen) all share similar core functions but have different pinouts and menu structures. Using the wrong manual will lead to confusion.
The physical manual that ships with the ATS-25 is often a thin, black-and-white booklet with broken English. Phrases like "Click the press to start the tuning of the frequency" are common.
The ats-25 radio manual pdf version you find online is typically version 2.0 or higher, which includes:
The telescopic whip antenna included with the radio is decent for FM and strong local AM. However, for Shortwave and SSB, you need a longwire antenna.