Anytone At5555n Ii Service Menu Work Jun 2026

Beyond the deep service menu, the AT-5555N II has other key combinations for expansion and resets:

: Compared to the older AT-6666, the AT-5555N II is praised for its "rock solid" SSB performance and superior noise filtering once properly aligned.

| Goal | Method | How-To | | :--- | :--- | :--- | | | Standard User Menu | For quick adjustments, use the outer dual-concentric RF Power knob on the front panel. This is the safest and easiest method. | | Fix a High Noise Floor | Safe Service Menu Adjustment | If your radio shows a constant S5-S7 noise level on receive, the RFG (CH-52) setting can be cautiously adjusted. Record the original value, then slowly increase it (e.g., from 86 to 105) to reduce the noise floor. Remember, this is a workaround, not a true fix. | | Maximum Power Adjustment | Not Recommended | This requires specialized knowledge and test equipment. Look for internal trim pots (VRs) that control specific functions like AM power and SSB ALC, which are safer to adjust than service menu parameters if you have the correct information. |

: Requires an RF signal generator. You feed a precise microvolt signal (e.g., -73 dBm for an S9 reading) into the antenna jack and adjust the service menu value until the on-screen S-Meter aligns with the S9 mark. Best Practices for a Successful Tune-Up anytone at5555n ii service menu work

The service menu, also known as the "alignment" or "calibration" menu, is a hidden menu on the AnyTone AT5555N II that allows users to access advanced settings and perform calibration procedures. This menu is intended for use by authorized service technicians and advanced users who are familiar with the technical aspects of the radio.

: If successful, the display will change to show the service menu items (e.g., beginning with modulation modes or specific channel codes like "FM" or "01"). Service Menu Operations

The Anytone AT-5555N II service menu is a powerful but risky tool. The radio is designed to perform very well straight out of the box, and most of the adjustments you'll need are readily available in the user-friendly standard menu. The service menu should be seen as a last resort for advanced troubleshooting or calibration, and it should only be used by those who understand the high risks involved. Beyond the deep service menu, the AT-5555N II

To access the Anytone AT-5555N II service menu, you must , then quickly press the remaining top-row buttons ( DW , RB , NB , SCAN , MEM , and EMG ) in order .

: Use the Channel Selector knob to cycle through the available parameters (there are roughly 53 in total). View/Change Values :

To access the service menu on the AnyTone AT-5555N II , follow the specific button sequence below. Note that this "hidden" menu is used for internal hardware alignment and calibration; changing these values without a frequency counter or signal generator can significantly degrade your radio's performance. Google Groups Service Menu Access Turn the radio OFF. hold the FUNC button while turning the radio Immediately press the following buttons in sequence: The display will change to show internal alignment codes. Google Groups Common Service Menu Codes | | Fix a High Noise Floor |

If the key combination fails, ensure your firmware is not locked. Some regional factory firmware locks out service menu access. In these cases, the radio must be unlocked via the PC programming software and a compatible USB data cable before the hardware button combination will register. To help tailor any further advice, let me know:

: Setting transmission power (TX power) too high can overheat and destroy the final transistors (MOSFETs).

involves a specific sequence of button presses during power-up. : Ensure the radio is turned OFF .

While holding these buttons down, turn the radio power knob on.