Anytone At5555n Ii Service Menu Work Work Jun 2026

Next was the power calibration. He keyed the microphone, watching the meter on the radio jump. The needle slapped the red zone instantly—dangerous. If he transmitted like that, he’d blow his final transistor, leaving him truly silent.

: Used for BFO (Beat Frequency Oscillator) and local oscillator offsets to correct off-frequency issues on SSB.

setting) to increase modulation levels from the factory default of 31 up to 63 for "full audio". Addressing S-Meter Noise anytone at5555n ii service menu work

: There is no master reset for the service menu. If you change a value and forget the original, you cannot easily restore it.

To access the main service menu on the AT-5555N II, follow this exact key sequence at startup: Next was the power calibration

While holding both controls, turn the power knob clockwise to turn the radio on.

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 . If he transmitted like that, he’d blow his

Write down your original values before changing anything.

If the receiver is deaf or over-reporting signal strengths, the S-meter calibration parameters require service work. Technicians hook up an RF signal generator to the antenna jack, inject a precise signal level (such as -73 dBm for an S9 reading), and adjust the service menu value until the digital S-meter on the display aligns perfectly with the standard scale. Risks and Best Practices