: Factory installations frequently suffer from an audible "clicking" or digital buzzing caused by poorly optimized internal display routines or unshielded S-meters. Modified builds rewrite screen refreshes to eradicate this noise.
: Offers a redesigned interface and better tuning, though memory limits may prevent new feature additions.
Connect the radio to your PC via a USB cable (ensure your radio has a USB-to-serial chip like the CH340). The Software: Use the Arduino IDE or XLoader .
The ATS20 firmware offers several key features that make it an essential component of the device. Some of these features include:
detail its reworked interface, 10 Hz SSB tuning steps, and improved BFO management ATS_MINI Firmware
Note: The IU5JAE firmware requires the "Plus" version of the radio (ATS-20+) or a specific hardware modification (adding a 3.3V level shifter) for the original ATS-20.
: Grants access to precise tuning increments. Get 1/5/9/10/50/100k/1M steps in AM, and down to 10/25/50/100/500Hz steps for razor-sharp Single Sideband (SSB) resolution.
To implement a custom feature like this into your ATS-20, follow these steps:
While there is no formal "white paper" in the academic sense for the ATS-20 firmware, several comprehensive technical guides and community-developed manuals (often distributed as PDFs or GitHub documentation) serve as the definitive "papers" for this hardware The ATS-20 and ATS-20+ radios typically run on Atmel ATmega328P (Arduino Nano/Uno) or
Your new firmware will likely work, but the frequency readout may be off by 1-2 kHz. Here is how to fix it:
Flashing custom firmware provides several immediate benefits:
This comprehensive guide covers everything you need to know about ATS20 firmware, from choosing the right version to flashing it safely. Why Upgrade Your ATS20 Firmware?
Warning: Double check VCC and GND. Reversing them will destroy the ATmega328.
(and its sibling, the ATS-20+) , a budget-friendly, highly capable receiver built around the powerful and an Arduino Nano microcontroller.
: Replaces basic signal layouts with a responsive S-meter to easily read incoming signal strength.
Select the port matching your connected ATS20 radio and set the baud rate (usually 115200 ).
