: Short press the STEP button to enter adjustment mode. Rotate the encoder to select the desired frequency step (e.g., 1, 5, 9, 10 kHz) and press the encoder or STEP again to confirm.
Tuning into Ham radio requires precise steps (as small as 10Hz) and BFO (Beat Frequency Oscillator) adjustments to make voices sound natural instead of like "Donald Duck". Button Shortcuts: Advanced firmware lets you use the
For weak SSB or Morse Code (CW) signals, narrow the filter () to eliminate background static. 📡 Advanced Reception Tips (Getting Better Signals)
3.7V internal lithium-ion battery, rechargeable via USB-C or Micro-USB (depending on your hardware revision) Antenna Input: BNC female connector (50-ohm impedance) 2. Interface and Physical Controls ats20 radio manual better
The functionality often depends on the firmware version. Community-driven updates frequently offer improved scanning and stability for the Si4732 chip [1, 2]. 2. Master the Controls: A Better Approach
: It is highly recommended to turn the radio off and recharge once the battery hits 10% . Draining it completely can cause power-cycling issues that may stress the internal Arduino Nano controller.
By moving beyond the basic documentation and implementing these techniques, the ATS-20 becomes a more effective tool for radio listening. : Short press the STEP button to enter adjustment mode
: You can cycle through step sizes (1, 5, 9, 10, 50, 100k, and 1M) for faster or more precise tuning by pressing the BFO Control : Use the main knob in SSB mode to adjust the Beat Frequency Oscillator (BFO)
Standard whip antenna for general listening, attached via a BNC connector. Core Button Layout and Functions
Cycles through the pre-programmed Amateur Radio (Ham) bands (e.g., 80m, 40m, 20m, 15m, 10m). This automatically adjusts the mode to LSB or USB depending on standard ham radio conventions. Button Shortcuts: Advanced firmware lets you use the
Long-press or cycle the button until the screen displays LSB (Lower Sideband) or USB (Upper Sideband).
Warning: This voids your warranty, but it transforms the ATS20 into a $200-grade receiver.