Ats20 Firmware Exclusive [better] Jun 2026

: Adds a visual signal level bar (S-meter) at the bottom of the screen via a long press of the SSB Sync Mode

ATS20 is a Si4732-based SDR receiver. Firmware falls into: ats20 firmware exclusive

| Feature | Open (IU3HXX) | Typical Exclusive | |--------|---------------|--------------------| | Spectrum scope | Basic FFT | Waterfall + peak hold | | Band presets | 7 bands | 20+ with custom names | | Noise reduction | No | DSP-based (NR1/NR2) | | CW decoder | No | Yes (limited) | | Firmware updates | Free + source | Paid / private | | Hardware mods needed | No | Often (extra button, I2C OLED) | : Adds a visual signal level bar (S-meter)

Command-line example (generic):