Service Menu: Anytone At-5555n Ii

Toggle through AM, FM, USB, and LSB to ensure the fine-tuning is consistent across all operating modes. Important Tips for Service Menu Usage

Adjusts the percentage of AM modulation depth to prevent clipping or muffled audio.

Unlike the standard Function menu, the service menu is designed for factory calibration. Accessing it allows you to adjust internal parameters without opening the case and turning physical potentiometers. Important Safety and Technical Considerations

The service menu allows for deep internal alignment and calibration. Because there is no factory reset for these settings, it is vital to record every original value before making changes. 🛠️ Accessing the Service Menu To enter the service menu, follow these steps exactly: Ensure the radio is OFF . anytone at-5555n ii service menu

Disclaimer: Modifying settings in the service menu can permanently damage your radio or cause it to transmit outside of legal technical specifications. Proceed at your own risk. Always record your factory default values before making any changes. How to Access the AnyTone AT-5555N II Service Menu

Adjusts the percentage of AM modulation. Setting this too high causes heavy clipping, clipping audio, and harmonic interference. Essential Tools Required for Proper Alignment

Do you need to include details about the alongside the software menu? What is your target word count or length goal? Share public link Toggle through AM, FM, USB, and LSB to

If the radio requires alignment, contacting a certified radio technician ensures the device remains reliable and compliant with local regulations.

: Never adjust alignment settings without a calibrated dummy load, power meter, and frequency counter.

Alternatively, try pressing , then RB , then NB , then DW sequentially. Understanding the Service Menu Items (Alignment Menu) Accessing it allows you to adjust internal parameters

Release the buttons once the display changes. The screen will indicate that you have entered the alignment/service mode (often displaying a firmware version or a specific test parameter code like "FRQ" or "POW"). Navigating the Menu

Use the Channel Selector or VFO knob to cycle through the menu items (there are typically around 53 parameters).

Technician Tip: While it is tempting to max these values out, pushing the final transistors past their rated limits will cause thermal runaway, heavy harmonic splatter, and premature hardware failure. Keep adjustments within a conservative margin. 3. Modulation and Deviation (MOD / DEV)

: While holding those buttons, turn the radio ON. All LCD segments will light up for approximately 2 seconds.