Anytone | At-5555n Ii Service Menu

A 50-ohm non-inductive dummy load rated for at least 100 watts. Never transmit into an open antenna while adjusting service settings.

To enter the service menu without a PC:

: Ensure you are holding the correct buttons completely down before turning the power knob. Some export versions require a hardware pad to be bridged inside the radio before the software menu unlocks. 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. |

What Tom checked (and what he avoided)

The service menu contains individual sub-settings for power levels across different modes (AM, FM, USB/LSB).

Accessing the service menu on the Anytone AT-5555N II requires a specific sequence of button presses and menu navigation. Follow these steps: A 50-ohm non-inductive dummy load rated for at

It’s surprisingly simple, but the key combination isn’t in the user manual.

While exact parameters can shift across manufacturing batches, the core alignment groups include: 1. Frequency Calibration (REF / FREQ) Some export versions require a hardware pad to