Anytone At5555n Ii Service Menu Work ((free)) -

An accurate inline power meter (such as a Bird 43) to measure true RF output.

The service menu is not an extension of the regular user menu. It controls fundamental engineering parameters.

The service menu on the AT-5555N II acts as a digital alignment tool. In older radios, adjusting power output or microphone gain required turning physical potentiometers (pots) on the circuit board. In the AT-5555N II, these physical controls are replaced by digital values stored in the radio's EEPROM. Modifying these values allows you to: anytone at5555n ii service menu work

Press and hold both the MENU and MODE buttons simultaneously on the face of the radio.

The display should now show the service menu items (often starting with "IC9" or similar adjustment codes). Common Service Menu Functions Once inside, you navigate the menu by turning the knob and pressing the (inner channel) knob to select a setting. Modulation Adjustment: Look for settings labeled An accurate inline power meter (such as a

Controls the limit voltages fed to internal varicaps for incremental fine-tuning (.00, .04, .05, .09 steps). Local Oscillator Offset

: Always write down your original numerical values for every setting before changing a single digit. The service menu on the AT-5555N II acts

Correct minor frequency drifts in Single Sideband (SSB) mode by adjusting the reference oscillator value.

The service menu allows fine-tuning the output power of the final amplifiers.

: [RB] , then [NB] , then [SCAN] , then [MEM] , then [EMG] . (Note: Some older board revisions require pressing [DW] right after [NB]).

Adjusts the AM modulation swing; lower values typically reduce AMC clamping. Alignment