Anytone At5555n Ii Service Menu Updated _best_

If your service menu behaves differently than described above, your AT-5555N II may require a firmware update. Check the official AnyTone website or trusted dealers for the latest software releases to ensure your radio has the newest service menu capabilities.

The entry sequence for the updated Version 2 (N II) is more complex than the original model. : Start with the radio turned OFF .

: Rotate the [Channel] knob to scroll through the different menu items (there are approximately 59 settings).

The latest update also introduced a new FM deviation option in the main user menu, which as mentioned, interacts with the service menu's calibration. There have also been reports of new functions, such as an added 136-174MHz FM receiver in some versions. Always check Anytone's official resources for the latest information. anytone at5555n ii service menu updated

: Adjusts the baseline carrier power for Amplitude Modulation.

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: These were the limit voltages for fine-tuning. By adjusting these, he ensured that his tuning remained even and smooth across the entire frequency range. If your service menu behaves differently than described

: Sets the standard S9 reference line. Typically calibrated using an RF signal generator injecting a -73 dBm (50 microvolt) signal into the antenna jack. 4. Frequency Reference Alignment

Once inside:

When you enter the service menu, you will see a series of alphanumeric codes. These correspond to specific hardware adjustments. Always adjust these cautiously, usually in tiny increments. 1. BFO (Beat Frequency Oscillator) Adjustment ( bfC ) : Start with the radio turned OFF

I can give you the exact steps or target values for your situation! Share public link

Unlike the regular function menu, the service menu requires a specific key combination during the radio's boot sequence.

, try the secondary method used on some production runs:

Older versions of the AT5555N (the first generation) had a notoriously simple, albeit limited, service menu. However, with the "N II" revision and subsequent firmware patches (Version 2.0 and higher), AnyTone has expanded the service menu to include:

Turn the radio ON while holding them. As soon as it powers up, release them and quickly press the other buttons in a line from DW all the way down to EMG .