Anytone At-5555n Ii Service Menu New!

Use the Channel Selector knob to move through the numbered settings (e.g., 01 to 59).

Once in, you may need to press other keys, such as to EMG , to navigate specific sub-menus. Method 2: The Alignment Menu (Alternative Access) Turn the radio ON . Press and hold the FUNC button and SCAN button together.

Sets the carrier power for AM (usually kept lower than FM to allow room for modulation swing). anytone at-5555n ii service menu

Press the FUNC key or cycle the power to save your new settings to the radio's EEPROM memory. Key Service Menu Parameters Explained

These correspond to the fine-tuning voltages for different modes, controlling the varicap capacitors to adjust frequency accuracy. loC / LO: Controls the local oscillator offset. How to Fine-Tune Calibration Use the Channel Selector knob to move through

Adjusts the wide/narrow width of your FM signal. Setting this too high causes your audio to clip and bleed into adjacent channels.

To access the service menu on the Anytone AT-5555N II , use the following key sequence: the radio. Hold down the buttons simultaneously and turn the radio two seconds Press and hold the FUNC button and SCAN button together

Many operational features can be customized safely using the official PC software and a USB programming cable.

This digest explains the AT-5555N II service menu: what it is, what you can access, common settings technicians change, safe procedures, and troubleshooting notes. It's written for radio users and technicians who want a focused reference without having to dig through full manuals.

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

) signal into the antenna jack (e.g., -73 dBm for S9) and adjust these parameters until the digital meter displays exactly S1 or S9. 5. SWR Meter Calibration (SWR)