TROUBLESHOOTING: No reception? → Check antenna, turn off attenuator SSB garbled? → Change sideband, fine tune ±1.5 kHz Encoder jumpy? → Rotate fully 20 times
Plugging in a pair of wired headphones or a small external PC speaker bypasses the internal speaker's limitations, providing much better fidelity and making weak signals easier to understand. 5. Firmware: The Secret to a "Better" Radio
: Changes the tuning increment (e.g., 1kHz, 5kHz, 10kHz).
Your attenuation or gain might be mismatched, or the battery is running low. Try lowering the volume slightly or plugging the unit into a power source to see if stability returns. ats20 radio manual better
The included telescopic antenna is fine for local FM or strong daytime AM stations, but weak shortwave signals require more copper.
: If the radio behaves erratically after a firmware update, hold the Encoder Button while powering it on to reset all settings to default. Frequency Scanning : Long-press the
: In USB or LSB mode, press the encoder or dedicated BFO button to enter regulation mode, allowing you to fine-tune the voice clarity (fixing the "Donald Duck" effect). TROUBLESHOOTING: No reception
Turn the physical power switch off (if your variant features a dedicated hard switch) or ensure the unit is powered down. Press and hold the [ENCODER_CLICK] button. While holding the encoder, press the [POWER] button.
This article serves as your guide. We are going to make the manual obsolete. By the end of this guide, you will know how to navigate the menu, master hidden features, and troubleshoot common issues better than 99% of other users.
Let’s standardize the terminology. Most ATS20 units have the following physical controls: → Rotate fully 20 times Plugging in a
mode. This allows for fine-tuning the voice clarity (typically in 10Hz or 25Hz steps). ひろくんのホームページ Advanced Features & Hidden Menus
This screen shows your current frequency, signal strength (RSSI/SNR), bandwidth, step size, modulation mode, and battery status.