This comprehensive manual provides the clear instructions, hidden shortcuts, and operational context you need to master your ATS-20 radio. Hardware Overview and Interface
is an upgraded version of the original. If you are struggling with a "loose" tuning encoder, you likely have the original, whereas the Plus model features a more robust, tactile encoder found in the Go to product viewer dialog for this item. Both use the SI4732.
button to toggle between AM, USB, and LSB (Single Sideband) for ham radio listening. : Rotate the TUNE/BFO/ATS knob. Press the
The standard documentation for the is often brief, but better guidance is available through community-supported manuals and advanced firmware like the ATS_EX firmware guide Core Control Guide Primary Function (Short Press) Advanced Function (Long Press/Special) BAND+ / BAND- Cycle forward/backward through bands. Long press to quickly scroll through bands. VOL+ / VOL- Adjust volume via encoder or direct steps. short press often acts as a Cycles tuning steps (1kHz, 5kHz, 10kHz). Long press (in some firmware) toggles the Switche modulation: FM, AM, LSB, USB. In some versions, long press saves current FM station. Adjusts bandwidth filters (0.5, 1, 1.2, 2.2, 3, 4 kHz). ats20 radio manual better
Shows current demodulation (FM, AM, USB, LSB).
Access the setting by tapping the Menu button until BFO appears.
: If you need a more detailed English manual, many users recommend the ATS-20+ Advanced Firmware User Manual for detailed button maps and setting definitions. Lets upgrade the ATS 20+ Both use the SI4732
Filled with broken English, missing menu descriptions, and incorrect button mappings, the included "user guide" often leads to frustration. You might find yourself unable to save a frequency, confused by the "Squelch" settings, or wondering why your SSB (Single Sideband) sounds like Donald Duck.
| Action | How to Do It | | :--- | :---
Cycles forward or backward through preset radio bands (FM, MW, LW, SW, and Amateur Ham bands). Press the The standard documentation for the is
Connect the shield portion of the BNC connector to a true earth ground (like a cold water pipe). This drops the local RF noise floor by up to 20 dB. Internal Shielding Retrofit
Check the Silicon Labs Si4732 datasheet (the real "master manual") or join the ATS20 Facebook groups—where the community has already written hundreds of pages of better documentation than the factory ever did.