If the signal strength meter feels too generous or too stiff, the service menu handles the receiver calibration.
AnyTone AT-5555N II features a deep "Service Menu" (or hidden alignment menu) that allows for precise hardware calibration beyond standard user settings. Accessing this menu is essential for fine-tuning frequency offsets or restoring factory performance after extensive use. How to Access the Service Menu
Follow this protocol to minimize risk and ensure you can always return to a known working state: anytone at5555n ii service menu work
Adjust first to bring the radio as close to the target center frequency as possible.
Unlike older radios that required soldering jumpers, the AT-5555N II uses a software-locked hidden menu. The exact sequence is critical. If the signal strength meter feels too generous
If pushing physical buttons on your microphone or front panel feels too risky or tedious, AnyTone provides dedicated PC programming software for the AT-5555N II.
While many of the 59 settings remain undocumented officially, experienced users have identified several critical functions: Parameter Code Common Function User Adjustment Notes RF Gain Adjustment How to Access the Service Menu Follow this
Have you accessed the service menu on your Anytone AT5555N II? Share your experiences, tips, and questions in the comments below!
: Users strongly advise writing down every single factory parameter (all 53+ items) before making any changes.