Anytone At-5555n Ii 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?

Immediately press the remaining buttons on the top row in order (starting with , then RB , NB , SCAN , MEM , and EMG ). The "FUNC" Sequence: Hold [FUNC] while powering on. Then press [RB] , then [NB] , then [DW] in sequence. anytone at-5555n ii service menu

| Menu Item | Commonly Associated Function | Notes / Typical Default | | :--- | :--- | :--- | | CH-52 | RF Gain (RFG) | Adjusts front-end sensitivity. Default ~86. Increasing can reduce noise. | | - | AM Low Power | Sets AM carrier power. Adjustable from S1 to S12. | | - | AM High Power / Swing | Sets AM peak modulation power. | | - | FM Power | Sets FM transmission power. Adjustable from S1 to S12. | | - | SSB Power | Sets SSB peak power. Adjustable from S1 to S12. | | - | RXBPF | Adjusts receive bandpass filter, affecting audio "thinness". | | - | AM/FM/USB/LSB Tone | Adjusts tone characteristics for different modes. | | - | BFO | Adjusts the 10.24MHz BFO for fine-tuning SSB. | Disclaimer: Accessing and modifying settings in the service

Note: Pushing the power limits past factory specifications will cause severe harmonic splatter and will quickly destroy the final amplifier stages. 3. S-Meter and SWR Meter Calibration (RX S-MTR / SWR) It is highly recommended to record all original