The AnyTone AT-5555N II is a powerful, high-performance 10-meter radio that has gained massive popularity among hobbyists for its high output and flexibility. While the standard settings menu covers most day-to-day needs, many advanced users look for the "Service Menu" (or Hidden Menu) to fine-tune the radio's hardware performance, such as power output levels and modulation depth. Understanding the Service Menu
“If you don’t own an oscilloscope, don’t touch the bias settings. Seriously. You’ll smoke your finals.” — Tech support, AnyTone forum anytone at-5555n ii service menu
The display should enter the technical alignment mode, often showing "bF" or frequency parameters. 2. Navigating the Service Menu The AnyTone AT-5555N II is a powerful, high-performance
Unlike the standard menu, which is accessed by pressing the Menu knob, the service menu requires a specific button combination during power-up. Turn the radio . Seriously
Never transmit into an open antenna while making adjustments in the service menu. Heavy tuning can cause sudden high SWR spikes that will ruin the radio instantly.
Always let your radio sit powered on for at least 15 to 20 minutes before making service menu adjustments. Internal components shift characteristics slightly as they reach operating temperature.
The service menu is a hidden diagnostic and alignment interface used for fine-tuning the radio's hardware parameters, such as frequency offsets and modulation levels. How to Access the Service Menu