Anytone At-5555n Ii Service Menu May 2026

Short how-to story: Accessing the Anytone AT-5555N II Service Menu

Tom needed to tweak his Anytone AT-5555N II handheld for better performance on a local repeater. He wasn’t a radio tech, but he wanted a safe, reversible change — nothing that would void warranty or break the radio.

5.1 Frequency Alignment

Parameter: Reference Oscillator / Frequency Offset
Function: Adjusts the frequency tolerance of the local oscillator.
Procedure: The technician must apply a known signal or transmit into a frequency counter. This setting adjusts the ppm (parts per million) offset. The goal is to achieve zero deviation from the target frequency.
Importance: Critical for ensuring the radio transmits within the allocated bandwidth and communicates effectively with other stations.

Save: Release the PTT to save the new value for that specific menu item. Exit: Turn the radio OFF to exit the service mode. Key Service Menu Items Setting Name CH-17 AMPOWL anytone at-5555n ii service menu

Instead of accessing the service menu, most users can optimize their AnyTone AT-5555N II experience through standard operations: Short how-to story: Accessing the Anytone AT-5555N II

Used to calibrate the carrier frequency for different modes (USB, LSB, CW). AM Modulation AMC / Modulation Save : Release the PTT to save the

The service menu of the AnyTone AT-5555N II offers advanced users and technicians the ability to customize and fine-tune the performance of their radio. For instance, adjusting the transmitter power can be useful in optimizing the radio's range and signal quality in different operational environments. Similarly, tweaking the squelch settings can help in reducing background noise and interference, thereby improving the overall communication clarity.

1. Introduction

The AnyTone AT-5555N II (and its various re-branded counterparts) is a popular 10-meter amateur radio transceiver often utilized in the Citizens Band (CB) and Export markets. While the standard user interface allows for basic operational adjustments (frequency step, RF gain, squelch), the device utilizes a secondary, embedded Service Menu for hardware-level calibration.

Find the MAX FREQ or BAND LIMIT setting in the service menu.
Adjust the lower limit (usually to 24.000 or 25.000) and the upper limit (usually 30.000 or 32.000).
Exit the menu. The radio will now allow transmission outside the standard 26.965–27.405 MHz range.