The is a high-performance 10-meter amateur radio often used by enthusiasts for long-distance communication (DXing) across AM, FM, and SSB modes. While its standard menus cover everyday features like noise reduction , ECHO , and VOX , there exists a deeper "hidden" service menu often whispered about in radio forums—a place where technical mastery can either perfect a rig or "toast" it entirely. The Legend of the Hidden Menu
Accessing the service menu allows modification of transmit frequencies, power output, and deviation limits. In many jurisdictions, operating this radio on frequencies outside the 10-meter amateur band (28.000–29.700 MHz) without the appropriate license is illegal. Furthermore, improper adjustment of alignment parameters (such as TX power or PLL voltage) can result in hardware damage, RF burns, or interference with emergency services. Proceed at your own risk.
The service menu allows calibration of frequencies, power output, modulation, and S-meter. ⚠️ Do not change values unless you have proper test equipment (frequency counter, power meter, oscilloscope). Incorrect settings can permanently detune the radio.
To access the hardware alignment settings, use the following key sequence: the radio. Press and hold the button while turning the radio anytone at5555n ii service menu updated
: Hold the keys until the LCD screen displays the service menu interface (typically indicated by a firmware version index or a parameter label like F01 or BIAS ).
Once the radio powers on, you will need to press the remaining six primary buttons in a specific sequence (starting from and moving across to EMG ) to unlock the full sub-menu parameters.
Accessing the updated service menu for the Anytone AT5555N II requires a few specific steps: The is a high-performance 10-meter amateur radio often
Locate the parameter. Increment the value slowly while speaking into the microphone.
As of 2026, many users are finding that the updated firmware of the "Version 2" (V2) or later models requires specific, updated techniques to access and safely manipulate these settings. ⚠️ IMPORTANT WARNING: Read Before Proceeding
: There is no official documentation for these settings. Incorrect adjustments can significantly degrade radio performance and cannot be undone with a standard factory reset. Use high-quality frequency counters or test equipment if making changes. PC Software : Professional alignment can also be performed via specific PC Alignment Software (service mode tools) using a programming cable. Google Groups steps or the standard factory reset procedure for this model? Anytone 5555n Ii Service Menu - Google Groups In many jurisdictions, operating this radio on frequencies
Ultimate Guide to the AnyTone AT-5555N II Service Menu The AnyTone AT-5555N II is a powerhouse in the world of high-power 10-meter radio transceivers. While the standard user menu allows you to change basic operational settings, the hidden service menu grants you access to deep hardware calibrations. Accessing this menu allows you to fine-tune your radio’s power output, modulation, and frequency alignment without opening the physical case.
: Fine-tunes the internal microphone pre-amplifier compression limit for AM.
For more information on the Anytone AT5555N II and its service menu, we recommend the following resources:
: Turn the power on while holding those buttons. Within two seconds (while the LCD segments are displayed), release them and quickly press the following six buttons in order: [DW] , [RB] , [NB] , [SCAN] , [MEM] , and [EMG] .
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