Ats-20 Radio Manual File
Press B repeatedly:
This is where 90% of ATS-20 users get stuck. The stock manual says “Long press Mode to select SSB” – but then tuning is confusing.
To listen to Ham Radio SSB (e.g., 20m band at 14.200 MHz USB):
Why does SSB sound distorted? You are slightly off frequency. Use 10 Hz tuning steps (if available in your firmware) or use the fine-tuning function by pressing the encoder.
The original manual is notoriously bad at explaining battery installation.
Step 1 – Open the back: Use a small Phillips screwdriver. Do not strip the tiny screws. Step 2 – Battery orientation: Insert an unprotected flat-top 18650 lithium-ion battery. Positive (+) terminal goes towards the top of the radio (near the SMA antenna connector). Negative goes towards the bottom. Step 3 – Power on: Long press the Power/VF button for 1.5 seconds. If the screen flashes and dies, your battery is low or inserted backward. Step 4 – Antenna: The SMA connector is fragile. Do not over-tighten. For SW/HF, a 5-7 meter long wire is best. For FM, use the included telescopic whip.
Warning: Do not transmit on this radio—it is a receiver only. Applying transmit power from another radio into the ATS-20's antenna jack will destroy the Si4732 chip instantly.
| Control | Function | |---------|----------| | Volume Knob | Power & volume (rotate) | | Tuning Knob | Change frequency / navigate menu | | Band Button (B) | Cycle: FM → SW → MW → LW | | Mode Button (M) | Switch tuning steps (fine/coarse) | | Memory/Set Button (S) | Save/recall presets (long press to save) | | Light/Display Button | Backlight on/off (hold for menu) |
Many ATS-20 units ship with "Soft Mute" enabled. This silences the audio when no strong signal is present, creating an annoying "pumping" sound.
The Ultimate Guide to the ATS-20 Radio Manual: Unlocking the Full Potential of Your Portable Ham Radio
Are you a ham radio enthusiast looking to get the most out of your ATS-20 radio? Look no further! The ATS-20 radio manual is an essential resource that can help you understand the features, functions, and operations of your portable ham radio. In this comprehensive guide, we'll take you through the ins and outs of the ATS-20 radio manual, providing you with a deeper understanding of how to use your radio to its full potential.
Introduction to the ATS-20 Radio
The ATS-20 is a popular portable ham radio that's widely used by amateur radio operators around the world. It's known for its compact design, lightweight construction, and impressive range. The ATS-20 is a versatile radio that can be used for a variety of purposes, including communication during emergencies, outdoor activities, and everyday chatting with fellow ham radio enthusiasts.
Understanding the ATS-20 Radio Manual
The ATS-20 radio manual is a comprehensive guide that provides detailed information on the radio's features, functions, and operations. The manual is usually provided with the radio, but it's also available for download from the manufacturer's website or online forums. The manual is an essential resource that can help you:
Key Components of the ATS-20 Radio Manual
The ATS-20 radio manual typically includes the following sections: ats-20 radio manual
Using the ATS-20 Radio Manual to Improve Your Skills
The ATS-20 radio manual is not just a reference guide; it's also a valuable resource that can help you improve your skills as a ham radio operator. Here are some tips on how to use the manual to get the most out of your radio:
Common Issues and Solutions
Here are some common issues that you may encounter with your ATS-20 radio, along with their solutions:
Conclusion
The ATS-20 radio manual is an essential resource that can help you unlock the full potential of your portable ham radio. By understanding the radio's features, functions, and operations, you can use your radio to communicate effectively with other ham radio enthusiasts around the world. Whether you're a beginner or an experienced ham radio operator, the ATS-20 radio manual is a valuable resource that can help you improve your skills and enjoy your hobby.
Additional Resources
If you're looking for additional resources to help you with your ATS-20 radio, here are some online communities and forums that you may find useful:
By combining the information in the ATS-20 radio manual with these additional resources, you can become a proficient ham radio operator and enjoy the many benefits of this exciting hobby.
ATS-20 Si4732 Radio Receiver: The Ultimate User Guide The ATS-20 (Si4732) has become a favorite among radio enthusiasts for its portability and impressive range. Whether you are a seasoned "ham" or a newcomer to shortwave listening, this guide serves as your comprehensive ATS-20 radio manual to help you master its features. 1. Getting Started
Before diving into the frequencies, ensure your device is ready:
Charging: Most units use a Mini-USB or USB-C port. A red LED usually indicates charging, turning off or green when the 3.7V lithium battery is full.
Antenna: Screw the telescopic antenna into the BNC connector. For better HF (High Frequency) reception, consider using an external long-wire antenna. 2. Controls and Layout
Encoder Knob: This is your primary tool. Rotate it to change frequencies or navigate menus. Press it to confirm a selection.
Power Switch: Usually located on the side or back to toggle the unit on/off.
Volume: Adjust using the dedicated knob or through the digital interface (depending on your specific firmware version). 3. Selecting Modes and Bands Press B repeatedly: This is where 90% of
The ATS-20 covers a massive range including FM, AM, and SSB. Use the Bands menu to cycle through: FM: Standard broadcast radio (64–108MHz). MW (Medium Wave): Standard AM radio. SW (Shortwave): 1.7MHz to 30MHz.
LSB/USB (Lower/Upper Sideband): Essential for listening to amateur radio operators on HF bands. 4. Tuning and Steps
To change your tuning speed, press the Step button (or encoder). Common increments include: 1kHz / 5kHz: Best for AM/MW scanning. 100kHz: Fast scrolling through FM. 10Hz / 100Hz: Critical for "clarifying" voices in SSB mode. 5. Advanced Features
Bandwidth (BW): You can adjust the filter width to cut out interference. Use narrower settings (e.g., 2.0kHz) for crowded SSB bands and wider settings (e.g., 6.0kHz) for high-quality AM.
BFO (Beat Frequency Oscillator): When in SSB mode, the BFO allows you to fine-tune the pitch of the voice to make it intelligible. Rotate the encoder until the "Donald Duck" sound turns into a clear human voice. 6. Menu Settings
By accessing the internal menu (usually a long press of the encoder), you can: Adjust Brightness: Save battery by dimming the OLED screen. Scan: Automatically search for the next strongest station. Mute: Quickly silence the audio. Troubleshooting Tips
No Sound on SW? Check your gain settings and ensure you are outside or away from electronic interference like LED bulbs or PC power supplies.
Firmware Updates: Many ATS-20 radios run on Arduino-based code. If your device feels "buggy," the enthusiast community often releases updated sketches that improve stability and add features.
Note: Always remember that radio propagation changes with the time of day. Lower frequencies (3–10MHz) usually work better at night, while higher frequencies (15–30MHz) are better during the day.
Go to product viewer dialog for this item. (and updated ATS-20+) is a compact, full-band DSP radio receiver powered by the SI4732 chip. It supports FM, AM, LW, and SW (with SSB capability). 🛠️ Quick Start & Controls Power On: Toggle the physical switch on the rear/side.
Mode Switch: Use the FM/AM switch on the back to toggle between FM broadcast and all other modes (AM, LW, SW, SSB).
Band Selection: Press Band+ or Band- to cycle through frequency ranges (e.g., FM, AM, LSB, USB). Tuning: Rotate the TUNE/BFO encoder to change frequency. Volume: Press Vol+ and Vol- buttons to adjust sound levels. 📻 Advanced Functions
BFO (Beat Frequency Oscillator): In SSB (USB/LSB) mode, press the TUNE/BFO button once to enter BFO mode for fine-tuning voice signals.
Step Size: Press the Step button to change the tuning increment (e.g., 1kHz, 5kHz, 10kHz).
Bandwidth (BW): Press the BW button to cycle through filter widths to reduce interference.
AGC/Attenuator: Use the AGC button to toggle automatic gain control or manual attenuation levels. Why does SSB sound distorted
Scanning: Pressing the rotary encoder often triggers an automatic scan for the next active station. User Manual
To enter the Setup Menu, press and hold the Encoder Button (or sometimes a dedicated "Menu" button depending on firmware) for 2 seconds.
Specify which of the following you want next (no questions asked):
(Using model-specific service manual pages or schematics will enable precise alignment frequencies, component values, and adjustment locations.)
Unlocking Your ATS-20: The Ultimate "Missing" Manual & Guide ATS-20 SI4732
is a powerhouse of a portable radio, but it’s notorious for shipping with little to no documentation. Whether you just unboxed your "AliExpress special" or you're looking to dive into Single Sideband (SSB) for ham radio listening, this guide bridges the gap between the hardware and your ears. Quick Start: Basic Controls
Navigating the ATS-20 usually involves a combination of the front buttons and the rotary encoder (tuning knob).
: Use the physical toggle switch usually found on the side or back. Changing Bands Short press [BAND+]
: Enters band selection mode. Rotate the encoder to find your band (FM, MW, SW, LW) and click the encoder to confirm. Long press [BAND+] : Quickly cycles through bands forward. Volume Control : Short press
to enter volume mode, then rotate the encoder. A short press on usually acts as a quick Tuning & Steps : Press the
button to choose your tuning increment (e.g., 1kHz for AM or 10Hz for fine-tuning SSB). Then, rotate the encoder to move across the frequency. Mastering SSB & Amateur Radio
The ATS-20 is beloved for its SSB capability, allowing you to hear amateur radio operators. Select Mode : Cycle through modes (AM, LSB, USB) by pressing the Fine Tuning (BFO) : In USB or LSB mode, click the encoder or press the
button to enter BFO regulation. This allows you to "clarify" the voice so it doesn't sound like a cartoon character. Bandwidth Filter
button to toggle between filters (0.5, 1, 1.2, 2.2, 3, and 4 kHz) to cut out nearby interference. Hardware Pro-Tips for Better Reception
The ATS-20 is open-source hardware. The community has written superior firmware that the original manual never mentions. The most famous is SI4735 Arduino firmware (ported to ATS-20).
Benefits of updating:
To update (you will need a USB-to-TTL adapter):
Warning: This voids any warranty and requires moderate technical skill.
