Many operators access the service menu specifically to adjust the or AM Modulation limits. While the stock audio on the AT-5555N II is generally excellent, adjusting these parameters can punch up your talk power:
Your AT-5555N II is a Ferrari of the airwaves. Now, with this guide to the service menu, you have the keys to the engine management system. Drive responsibly, and enjoy the pristine signal quality that proper calibration provides.
The AT-5555N II has dozens of hidden parameters, but you only need to touch about 8 of them for 95% of service work. Here is the decoder ring for the most common codes.
What are you trying to fix (e.g., low power, off-frequency, low audio)? anytone at5555n ii service menu work
If you want, I can convert this into a printable one-page technician checklist, a step-by-step guided calibration for a specific parameter (TX power, PA bias, or VCO trim), or a troubleshooting flowchart — tell me which.
If you did it correctly, the screen will look different. Instead of showing a frequency, you will see a numeric parameter (e.g., P-01 or d-01 ) and a value. You are now in the .
Accessing and modifying the service menu requires precise steps. Missteps can misalign the radio, so documenting original values before making changes is critical. What is the AnyTone AT-5555N II Service Menu? Many operators access the service menu specifically to
You can scroll through the different settings by pressing the button. Adjusting the values is generally done by rotating the main Channel Switch .
The service menu contains several cryptic codes that control internal oscillators and voltage limits for frequency stability:
The AnyTone AT-5555N II includes a hidden service menu used by technicians for calibration, diagnostics, and programming checks. This article documents how to safely access the service menu, common menu items and their meanings, recommended procedures, and safety precautions. Only qualified technicians should perform service-menu operations; incorrect settings can render the radio inoperable or violate regulatory rules. Drive responsibly, and enjoy the pristine signal quality
One of the biggest lies in a radio is the S-Meter. Manufacturers often calibrate these to flatter the user (making signals look stronger than they are).
The service menu is intended for technicians and experienced operators. Incorrect settings can cause the radio to malfunction, violate transmission regulations, or damage the internal components. Always document the original values before changing any setting. How to Access the AT-5555N II Service Menu Accessing the service menu on the AnyTone AT-5555N II