Service Menu: Anytone At-5555n Ii

While documentation is limited, users have identified several key settings:

Controls AM modulation swing; some users report setting these to zero for higher "swing". RF Gain (RFG) anytone at-5555n ii service menu

Power cycle the radio (turn it off and back on) to save settings. 📝 Common Service Menu Parameters What is the Service Menu

Disclaimer: Accessing and modifying settings in the service menu can permanently alter your radio's performance. Incorrect adjustments can damage the transmitter, distort your audio, or cause the radio to transmit outside of legal specifications. Proceed at your own risk. It is highly recommended to record all original factory values before making any changes. What is the Service Menu? or due to extreme temperature variations

Connect the radio's RF output through a dummy load to a calibrated frequency counter.

Aligns the master reference crystal oscillator (TCXO/VCO) to ensure the radio transmits and receives on the exact center frequency.

Over time, or due to extreme temperature variations, the radio's internal reference crystal oscillator can drift slightly. This causes the radio to transmit or receive slightly off-frequency, which is especially noticeable as distorted voice audio on Single Sideband (SSB) modes. Sets the master clock frequency.