Overview and Purpose The ATS-20 manual serves multiple audiences: operators seeking quick-start guidance, hobbyists learning features, and technicians performing repairs or adjustments. It typically begins with an introduction to the device, specifications, safety warnings, and an outline of supplied accessories. Clear definition of intended use and operating environment is crucial; a good manual balances brevity for users with technical depth for service personnel.
: The ATS-20/25 Facebook Group is the primary hub for troubleshooting and finding the latest firmware files. ats-20 radio manual
| Button | Short Press | Long Press (2 sec) | | :--- | :--- | :--- | | | Turn on/off (standby) | Enter VFO (Variable Frequency Oscillator) mode | | BAND/VM | Change band (AM/FM/SW/LW) | Enter VM (Variable Memory) / Memory recall | | STEP/AGC | Change tuning step (1kHz, 5kHz, 10kHz) | Toggle AGC (Automatic Gain Control) on/off | | Filter/Mode | Change bandwidth (e.g., 6kHz, 4kHz, 2.2kHz) | Switch receive mode (AM/LSB/USB) | | Volume/Squelch | Adjust volume (0-63) | Adjust squelch level | | Encoder (Knob) | Tune frequency | Fast tune (10x step) | Overview and Purpose The ATS-20 manual serves multiple