Radio Manual - Ats-20

The ATS-20 (and the upgraded ATS-20+) are compact SI4732-based all-band radio receivers popular in the ham radio community. Because these are often sold as DIY kits or unbranded imports, a single "official" printed manual can be hard to find, but you can use the following guide for operation and resources. Quick Start & Basic Controls

Power On/Off: Most units use a dedicated slide switch or a long press on the volume/encoder knob.

Band Selection: Short press the BWS or Band button to cycle through FM, AM, and various SW (Shortwave) bands.

Tuning: Rotate the main encoder knob. Short-pressing the knob typically changes the tuning step (e.g., 1kHz, 5kHz, 10kHz).

Mode Switch (SSB): For Shortwave, use the Mode button to switch between AM, USB, and LSB (Single Side Band).

Volume: Controlled via a dedicated potentiometer or a secondary function of the encoder. Advanced Settings & Terminology

If your unit is running custom firmware (like the Goshante ATS-20 Exa), you may see these settings in the menu:

SM (Soft Mute): Adjusts the threshold for audio muting when signals are weak (range 0–32).

SVC (SSB AVC): Enables or disables Automatic Volume Control specifically for Single Side Band.

Syn (Sync Mode): A toggle for synchronous detection in SSB to improve signal clarity.

SSM (SSB Soft Mute Mode): Choose between RSS (based on signal strength) or SNR (based on signal-to-noise ratio). Manuals & Firmware Resources

Since the ATS-20 shares architecture with the more advanced ATS-25, their manuals are often used interchangeably for firmware-related functions:

Comprehensive Guide: A detailed ATS-25 User Manual (PDF) is often cited by users as the best reference for shared software features.

Community Discussions: The ATS-20/25 Facebook Group is the primary hub for troubleshooting and finding the latest firmware files.

Technical Diagram: For hardware enthusiasts, technical layouts and wiring diagrams are frequently shared on GitHub repository discussions. im looking for ATS-20 Diagram

The ATS-20 (and its successor, the ATS-20+) is a popular, low-cost "all-band" radio receiver based on the Si4732 DSP chip. Because many of these units are sold as kits or generic imports, a physical manual is often missing from the box. ats-20 radio manual

Below is a functional guide to operating the radio based on standard firmware. 📻 Quick Start Guide

Antenna: Connect the provided telescopic antenna to the BNC/SMA jack.

Power: Flip the Toggle Switch (usually on the back or side) to ON.

Mode Switch: If your unit has a physical FM/AM switch on the back, set it to the desired band before tuning.

Tuning: Rotate the large Encoder Knob to change the frequency. Primary Controls & Functions

BAND+ / BAND-: Cycles through pre-configured bands: FM, LW, MW, and various SW (Shortwave) segments. VOL+ / VOL-: Adjusts the volume level (typically 0–63).

MODE: Switches between modulation types: AM, LSB (Lower Sideband), USB (Upper Sideband), and FM.

STEP: Changes the tuning increment (e.g., 1kHz, 5kHz, 10kHz). This is vital for fine-tuning SSB signals.

BW (Bandwidth): Cycles through audio filters (0.5, 1, 1.2, 2.2, 3, and 4 kHz) to reduce interference from nearby stations.

AGC (Auto Gain Control): Toggles gain modes to stabilize signal strength. 🛠️ Advanced Operations

I have an ATS-20 and I cannot get it to enter FM Mode.I ... - Facebook

Chapter 6: Memory Management – Saving Your Favorite Frequencies

The original manual fails to explain how to save a frequency without overwriting another.

To save a frequency to memory:

  1. Tune to your desired frequency (e.g., 97.1 FM or 7.200 LSB).
  2. Long-press BAND/VM to enter Memory Mode (you will see "CH-001").
  3. Turn the encoder to select the empty memory slot (e.g., CH-010).
  4. Long-press the Power/VF button. The screen will flash "SAVED."
  5. To exit memory mode, long-press BAND/VM again.

Recall a memory: Short press BAND/VM to toggle between VFO and Memory modes. Then use the encoder to scroll through your saved channels.

10. Tips for Better Listening

1. Introduction & Architecture

The ATS-20 is not a traditional analog radio; it is a Software Defined Radio (SDR) based on the SI4735 DSP chip. Unlike older radios that use coils and tuning capacitors, the ATS-20 processes signals mathematically. The ATS-20 (and the upgraded ATS-20+) are compact

Quick Reference Card (Print & Keep)

Power On/Off   → Volume knob click
Band Cycle     → B button
Fine Tuning    → M button (toggle step)
Save Preset    → Long press S → choose slot → short S
Recall Preset  → Short S → rotate knob → short S
Menu           → Hold Light button → rotate knob → S to save
Charge         → USB-C 5V/1A only (red=charging, green=full)

Note: This manual is community-sourced. No official manual exists from the manufacturer. For firmware updates (if applicable), check radioreference.com or GitHub for “ATS-20 Si4732.”

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:

  1. Understand the radio's features: The manual provides an overview of the radio's features, including its frequency range, power output, and modulation modes.
  2. Learn how to operate the radio: The manual provides step-by-step instructions on how to use the radio, including setting the frequency, adjusting the volume, and using the different modes.
  3. Troubleshoot common issues: The manual provides troubleshooting guides to help you resolve common issues, such as poor reception, low transmission power, and malfunctioning components.

Key Components of the ATS-20 Radio Manual

The ATS-20 radio manual typically includes the following sections:

  1. Introduction: This section provides an overview of the radio, its features, and its applications.
  2. Technical Specifications: This section provides detailed technical specifications of the radio, including its frequency range, power output, and modulation modes.
  3. Operating Instructions: This section provides step-by-step instructions on how to use the radio, including setting the frequency, adjusting the volume, and using the different modes.
  4. Maintenance and Troubleshooting: This section provides guides on how to maintain and troubleshoot the radio, including cleaning, replacing components, and resolving common issues.
  5. Appendices: This section provides additional information, such as diagrams, charts, and technical data.

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:

  1. Read the manual thoroughly: Take the time to read the manual from cover to cover to understand the radio's features and operations.
  2. Practice with the radio: Practice using the radio with the manual as a reference guide to reinforce your understanding of the radio's features and operations.
  3. Experiment with different modes: Experiment with different modes, such as FM, AM, and SSB, to understand their characteristics and applications.
  4. Join online communities: Join online communities, such as forums and social media groups, to connect with other ham radio enthusiasts and learn from their experiences.

Common Issues and Solutions

Here are some common issues that you may encounter with your ATS-20 radio, along with their solutions:

  1. Poor reception: Check the antenna connection, adjust the antenna, and ensure that the frequency is set correctly.
  2. Low transmission power: Check the power source, adjust the power setting, and ensure that the transmission mode is set correctly.
  3. Malfunctioning components: Check the component connections, clean the components, and replace them if necessary.

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. Tune to your desired frequency (e

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.

Finding a comprehensive official manual for the ATS-20 all-band radio receiver can be difficult as it is often sold under various generic brands without detailed documentation. ATS-20+ / V2 Quick Start Guide

The ATS-20 (and its updated ATS-20+ variant) is a portable full-band radio receiver based on the SI4732 chip.

Frequency Bands: Supports FM, AM (MW and SW), and SSB (LSB and USB). Controls: BFO Control: Used to clear up voice signals in SSB mode. Frequency Steps: Switchable between 1, 5, and 10 KHz steps.

Audio Filters: Adjustable bandwidth filters (0.5, 1, 1.2, 2.2, 3, and 4 KHz).

Charging: Powered by a 3.6V 800mAh polymer lithium battery, rechargeable via a standard USB port.

Audio Output: Includes a 3.5mm earphone jack and supports a 4-ohm or 8-ohm speaker. Manual Resources

Since official PDFs are rare, users often rely on documentation for similar models like the ATS-25, which shares many firmware functions.

Community PDF: A community-shared H-RADIO User Manual (PDF) for the ATS-25 is often used as a reference for ATS-20 firmware.

Firmware Updates: Many ATS-20 units can be updated using ESP32 flash tools to add features like better band scanning or refined SSB controls. Common Troubleshooting

Missing FM Mode: If the radio won't enter FM, check the band switch button; sometimes it requires a firm or repeated press to cycle through to FM.

Antenna Issues: For FM, the standard telescopic rod antenna is generally better than internal traces, which can introduce noise from the unit's electronics.