Anytone At-5555n Ii Service Menu !!hot!! Info

The AT-5555N II features a USB programming jack on the back, enabling PC-based configuration. This method is often safer and more precise than the button sequence.

: Never change these settings without professional test equipment (frequency counters, signal generators). Improper adjustments can "unalign" the radio's transmission and reception across different modes. Always write down original factory values before making any changes.

: Keying the mic allows you to check the current value for certain active settings. Common Settings CH-52 (RFG)

: Some versions use a different combination: Turn on while holding FUNC , then quickly press RB , NB , and DW . Key Service Menu Settings

However, accessing and modifying settings in the service menu also carries risks. Unauthorized or improper changes can lead to compliance issues with regulatory standards, void warranties, or even damage the radio. Therefore, it is recommended that only experienced users or certified technicians attempt to access and modify the service menu settings. anytone at-5555n ii service menu

Some units ship with AM carrier set above 4W, causing over-modulation on certain amplifiers. Lowering HI-PWR to 3.5W allows headroom for clean 100% positive peaks.

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: 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. The AT-5555N II features a USB programming jack

: Adjusts the RF Gain calibration; typically set around a default of 86. Common Adjustments & Operations

: Changing values in the service menu without proper test equipment (like a frequency counter or signal generator) can significantly degrade the radio's performance or cause it to operate off-frequency. Google Groups alignment values for SSB or CW modes to help center your frequency? Anytone 5555n Ii Service Menu - Google Groups

If your AT-5555N II is slightly off-frequency, particularly on SSB (USB/LSB):

The service menu is a hidden diagnostic and alignment interface used for fine-tuning the radio's hardware parameters, such as frequency offsets and modulation levels. How to Access the Service Menu Common Settings CH-52 (RFG) : Some versions use

On SSB, aggressive ALC can distort your audio. Lowering SSB-ALC slightly (e.g., from 30W down to 25W PEP) often results in a cleaner, punchier transmission with less splatter.

Understanding the internal settings helps in identifying how the radio processes signals. Here are the primary parameters often addressed during professional servicing: 1.

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.