: Switches between modulation types: AM , LSB (Lower Sideband), USB (Upper Sideband), and FM .
| Control | Function | |---------|----------| | | Power & volume (rotate) | | Tuning Knob | Change frequency / navigate menu | | Band Button (B) | Cycle: FM → SW → MW → LW | | Mode Button (M) | Switch tuning steps (fine/coarse) | | Memory/Set Button (S) | Save/recall presets (long press to save) | | Light/Display Button | Backlight on/off (hold for menu) | ats-20 radio manual
Since the ATS-20 shares architecture with the more advanced ATS-25, their manuals are often used interchangeably for firmware-related functions: : Switches between modulation types: AM , LSB
The “manual” in the photos was a grainy, low-resolution JPEG of a single page of Chinese text, already watermarked by three different resellers. Elias, a man who liked to read instructions for toasters cover to cover, felt a prickle of unease. He turned the radio on
He turned the radio on. The screen bloomed a cool blue. A hiss of static filled his basement workshop. There were only four buttons, a volume knob, and a smooth tuning dial that clicked with a satisfying, oily precision. Without a guide, the device was a monolith. He pressed the buttons at random: BAND . The frequency jumped from FM to shortwave. MODE . The static shifted from a whisper to a roar. VFO . The numbers on the screen began to blur and race as he spun the dial.