: While holding the PTT , rotate the Channel Selector knob to adjust the value.
If youg., low microphone audio, off-frequency on sideband, high background static)?
: While holding the PTT , rotate the Channel Selector knob to increase or decrease the value. anytone at5555n ii service menu updated
The Service Menu is a hidden calibration and debugging interface intended for technicians and advanced users. It contains numerous settings that control the core performance of your radio:
Always write down your original factory values before making any changes. If you lose your original settings, there is no way to automatically restore the radio to its factory-calibrated state. : While holding the PTT , rotate the
Write down the original factory value of every setting before you change it. There is no "factory reset" button that restores default service menu alignments.
Adjusts the percentage of AM modulation. Setting this too high causes severe audio distortion and clipping. Troubleshooting Common Service Menu Issues The Radio Won't Enter Service Menu The Service Menu is a hidden calibration and
The display should enter the service mode, showing alignment parameters. Google Groups Service Menu Parameters Once in the service menu, use the
Press the FUNC key or turn the radio off to save your newly adjusted values to the EEPROM memory and return to standard operating mode. Key Service Menu Parameters Explained
Service Menu Alignment and Hidden Features for the AT-5555N II Series
Adjust the parameter until the meter peaks safely around . Pushing the amplifier past this threshold generates harmonic distortion (splatter) across neighboring frequencies. Step 4: Save and Exit
