Click . The TX/RX indicator LEDs inside the radio housing will flash rapidly.
Adjust from 0 to 32 to reduce background static between stations.
The BNC connector makes it easy to experiment with antennas.
Press to cycle through filter bandwidths for better audio clarity on crowded bands.
The ATS20 runs on 5V DC via USB-C. However, it is . If you plug it into a cheap phone charger, you will hear digital buzzing across all frequencies. ats20 radio manual better
: Use the Step button to select your tuning increment, then rotate the TUNE/BFO knob to dial in the frequency. Advanced Features & "Hidden" Settings
Whether you’re hunting for shortwave broadcasts or tuning into ham radio operators, this guide serves as your definitive "better manual" to get the most out of this powerful little DSP (Digital Signal Processing) radio. 1. Essential Controls At-A-Glance
Let’s walk through the LCD menu system. A "better" manual translates each setting into plain English.
Controls frequency tuning, volume adjustments, and menu navigation. It features a push-button action (referred to as [ENCODER_CLICK] ). The BNC connector makes it easy to experiment with antennas
Modifying firmware voids warranty but enables extra features (e.g., RDS, spectrum scope).
Narrow the bandwidth to its lowest setting ( 1.2 kHz or lower via custom firmware) to isolate the tone. 4. Making the ATS-20 Perform Better via Hardware Mods
Press the button to select your desired broadcast spectrum (e.g., FM for local stations, SW for international shortwave). Turn the Encoder Knob to search for stations.
: Press the BW button to toggle filters (0.5, 1.0, 1.2, 2.2, 3.0, or 4.0 kHz) to reduce interference in crowded bands. AGC Control Automatic Gain Control to maintain consistent audio levels. EEPROM Reset However, it is
Before we fix the software, let’s diagnose the hardware problem. The ATS20 is based on the Silicon Labs Si4732 DSP chip. The manufacturers in China usually provide a generic, one-size-fits-all pamphlet.
The radio's potential is often unlocked through community-developed firmware like Goshante (ATS_EX) Bandwidth (BW)
If you have the standard ATS-20, you may notice the display is hard to read at angles. The "Better Manual" advice often leads to the hardware modification known as the .
Let’s translate the interface. The ATS20 uses the chip. Here is what the cryptic abbreviations actually mean.