If you need to switch between the 10m amateur band and the expanded 11m band: the radio. Hold [FUNC] and [EMG] while powering on.
The factory calibration values tend to be consistent across different units of the same revision. While you should still record your own values, it is reassuring to know that you can rely on other users' default settings as a baseline for comparison if you are troubleshooting.
By treating the Anytone AT-5555N II service menu with precision and documenting your steps, you can optimize your transceiver for razor-sharp frequency accuracy, clean modulation, and perfectly calibrated signal reports.
The service menu translates analog hardware adjustments into digital values. While the exact shorthand names can vary slightly by firmware batch, the updated menu covers these core alignment blocks: 1. Frequency Calibration (REF_FRQ / CLK) anytone at5555n ii service menu updated
Always test your modulation in AM and USB/LSB with a local friend to ensure your audio is clear and not over-driven or distorted. If you'd like, let me know:
For years, the "secret menu" has been a topic of hushed tones on forums. Recently, updated methods and expanded parameters have surfaced, giving operators more control than ever before. Here is everything you need to know about the for the AT-5555N II.
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| Parameter | Description | Notes | | :--- | :--- | :--- | | | Sets the threshold for the squelch potentiometer. | Usually calibrated so the outer knob positions correspond to tight and loose settings. | | RF POWER | Adjusts the High and Low power output levels. | Critical: Do not exceed the radio's design limits (typically 25W-40W depending on the model). Overdriving reduces lifespan. | | FM DEVIATION | Sets the modulation width. | Critical for clear audio. Too
: Use the Channel Selector knob to cycle through the approximately 59 available menu items.
Adjusting parameters incorrectly can detune your radio, cause spurious emissions, or damage the final amplifier transistor. Always have a wattmeter and frequency counter handy if you intend to make adjustments. Record your default settings before changing anything. While you should still record your own values,
If you need help, consult online communities like WorldwideDX.com for the most up-to-date information. With careful planning and the right tools, the service menu can help you transform your AT-5555N II from a great out-of-the-box radio into a truly exceptional, fine-tuned machine.
The bfC menu option is used to adjust the frequency of the 10.24 MHz BFO crystal. This adjustment is critical for ensuring that your Upper Sideband (USB) and Lower Sideband (LSB) are properly centered, ensuring your voice sounds natural on the air. 2. Fine Tuning Voltages ( fr0 , fr4 , fr5 , fr9 )
Accessing the service menu on the AnyTone AT-5555N II allows you to adjust internal alignment settings like modulation, RF gain, and frequency fine-tuning.