Located next to the encoder, this controls the analog audio output level.
Changes the frequency tuning increments (e.g., 1kHz, 5kHz, 9kHz, 10kHz).
Because the ATS-20 is based on the open-source Arduino and Si4732 architecture, the factory firmware is often barebones. Many users flash alternative firmware versions (such as the popular community mods by PU2CLR or specialized Russian firmware packs).
Upgrading the firmware via the internal USB-to-Serial link can add features like: A visual spectrum scanning bar. Expanded frequency ranges. Better battery level indicators. ats20 radio manual better
If you are zeroing in on a specific station, drop it to . This prevents you from overshooting the signal. 6. Battery Management The ATS20 uses a built-in lithium battery charged via USB.
The ATS-20 relies on a minimalist physical interface. Mastering the dual functions of the encoder knob and the front-panel buttons is key to smooth operation. Front Panel Buttons
Without the manual, these settings are just confusing acronyms on a small screen. Located next to the encoder, this controls the
Now that we've covered some of the key features, let's take a closer look at the manual. The ATS20 radio manual is divided into several sections, including:
If a signal is overpowering and sounds distorted, check your firmware settings to switch from Auto Gain Control (AGC) to manual attenuation. Advanced: Firmware Upgrades
The true secret to making the ATS-20 "better" lies in its open-source nature. The internal board uses an ATmega328 micro-controller (similar to an Arduino Uno). The stock factory firmware is barebones, but independent developers have rewritten the software to add transformative features. Many users flash alternative firmware versions (such as
Tune to an amateur radio frequency (e.g., 40-meter band around 7.150 MHz).
The radio utilizes an internal ferrite bar. The external antenna will have minimal effect; instead, physically rotate the entire radio unit to find the signal peak.
Increments or decrements the audio volume level (displayed on screen from 0 to 63).