If you own an AnyTone AT5555N II, you already know you possess one of the most powerful, feature-packed AM/FM/SSB mobile radios on the 10-meter and 12-meter bands (often used as a "10-meter" export radio). But beneath the sleek front panel and multi-colored display lies a secret control center: the Service Menu.
For most AT-5555N II units (pre-2024 firmware):
Verification: If successful, the screen will display a mode like "FM" or a numbered menu item (e.g., #01), indicating you are in the factory service mode. Navigating and Adjusting Settings anytone at5555n ii service menu updated
Unlocking the Full Potential of the Anytone AT-5555N II: A Guide to the Updated Service Menu
Alignment: Settings like bfC and fr0–fr9 control the BFO and fine-tuning voltages for different modes. 🔓 Frequency Expansion (11m Mode) Unlocking the Beast: The Complete Guide to the
The Anytone AT-5555N II is a popular 10-meter amateur radio transceiver. Unlike its predecessors, the "N II" revision utilizes varying hardware revisions (PCB versions) that dictate specific service menu entry methods. Users attempting to align these radios using legacy instructions (from the original AT-5555 or AT-5555N) may find discrepancies in frequency coverage or menu accessibility. This paper outlines the updated service menu access codes and the critical alignment parameters required for restoring performance after component replacement or frequency expansion.
Disclaimer: These are starting points. Every radio is different due to component tolerances. Rotate the Main Encoder (Channel Knob): Cycles through
Modulation: Lower values on AM modulation settings typically result in higher modulation (less clamping).