: Power the radio OFF and ON again to save your changes and return to normal operation. Key Service Menu Settings
Just a heads-up for anyone running the – yes, there’s a hidden service menu, but accessing it isn’t as straightforward as older models.
If Single Sideband (USB/LSB) signals sound distorted or require you to ride the clarifier constantly, your BFO values need calibration: anytone at5555n ii service menu work
The display will enter the alignment mode, allowing you to scroll through parameters using the button or the channel selector. Google Groups Common Service Menu Codes
Accessing the service menu on the Anytone AT-5555N II allows for deep-level alignment of internal parameters like power output, modulation swing, and local oscillator offsets. Unlike the standard user menu, these settings are factory-calibrated and do not reset even if you perform a global radio reset. Accessing the Service Menu : Power the radio OFF and ON again
: Within two seconds (while the LCD segments are all visible), quickly press the following buttons in order: DW , RB , NB , SCAN , MEM , and EMG .
The display should now show the service menu items (often starting with "IC9" or similar adjustment codes). Common Service Menu Functions Once inside, you navigate the menu by turning the knob and pressing the (inner channel) knob to select a setting. Modulation Adjustment: Look for settings labeled Google Groups Common Service Menu Codes Accessing the
Never calibrate transmitter power or modulation blindly. You must connect the radio to a calibrated dummy load, an accurate RF wattmeter, and an oscilloscope or modulation meter. Adjusting power into a poorly matched antenna can instantly destroy the final transistors.
service menu lets you adjust fine-tuning, AM modulation levels, power outputs, and RF gain baselines. This comprehensive guide provides step-by-step instructions on accessing, navigating, and modifying these factory parameters safely. ⚠️ Crucial Warning Before You Begin