The AnyTone AT-5555N II is a fantastic radio right out of the box. The Service Menu isn’t for casual users—but for those with the skills and tools, it transforms a great radio into a finely tuned machine. Treat it with respect, and it will reward you with unmatched performance on 11m and 10m bands.
This is the most important section of the entire article. Before we even discuss the key sequences to access the service menu, it is critical to understand the risks involved.
To prevent ruining your transceiver during a service menu alignment, follow these strict rules: anytone at-5555n ii service menu
Once adjustments are complete, press the FUNC or MEM button (depending on the exact firmware revision) to write the new data to the EEPROM, or simply power the radio off and back on to finalize standard parameters. Key Service Menu Parameters Explained
The service menu provides access to various configuration options, including: The AnyTone AT-5555N II is a fantastic radio
To enter the hidden service menu, use the following button combination: Turn the radio completely .
Calibrates the peak envelope power (PEP) for Upper Sideband (USB) and Lower Sideband (LSB). 3. Modulation and Deviation (MOD / DEV) This is the most important section of the entire article
The you are trying to fix (e.g., low power, off-frequency, incorrect S-meter) What test equipment you have available