Ats20: Radio Manual Better

Do not leave it plugged into a computer or a "noisy" cheap wall charger while listening. The "switching noise" from the charger will bleed into the radio's circuitry, creating a loud hum on AM and SW bands. Always listen on battery power for the cleanest signal. Why a "Better" Manual Matters

: Use battery power whenever possible. Charging while listening often introduces significant mains hum and electronic noise into the receiver. Documentation ats20 radio manual better

| Menu Item | What it actually does | Recommended Setting | | :--- | :--- | :--- | | | Automatic Gain Control. Keeps loud stations quiet and quiet stations loud. | ON (for AM/SW) / OFF (for SSB) | | BW | Bandwidth. Narrower = less noise, worse fidelity. Wider = better music, more hiss. | AM: 2.2 kHz / SSB: 1.8 kHz | | SQ | Squelch. Mutes the speaker until a signal breaks through. | 1 (lowest) or 0 (Off) | | SSB | Switches to Single Sideband (USB/LSB). | LSB for <10 MHz / USB for >10 MHz | | BFO | Beat Frequency Oscillator. Fine-tunes SSB voice pitch. | Adjust +/- 50 Hz for clear voice | | Step | Tuning step size. 1 kHz is fast but imprecise. 10 Hz is precise but slow. | SW: 100 Hz / SSB: 10 Hz | Do not leave it plugged into a computer