Anytone At5555n Ii Service Menu Updated New!
Accessing this service menu allows advanced users, technicians, and operators to fine-tune the hardware parameters of the radio—such as RF power output, S-meter calibration, modulation depth, and frequency alignment—without needing to open the physical chassis to turn mechanical potentiometers (trimpots).
The Service Menu is a hidden calibration and debugging interface intended for technicians and advanced users. It contains numerous settings that control the core performance of your radio:
Do not attempt power or frequency alignments without a calibrated dummy load, a reliable wattmeter/SWR meter, and a frequency counter. anytone at5555n ii service menu updated
Despite trying every external setting, the radio was unusable. The diagnosis from the community? A previous owner had ventured too far into the hidden service menu without a map, tweaking critical alignment parameters until the radio's "brain" was misaligned beyond basic repair. It stands as a reminder that while these menus offer power, they require the precision of a technician. Quick Reference for Adventurous Owners
The updated service menu offers a range of benefits for Anytone AT-5555N II users, including: Despite trying every external setting, the radio was
Once inside the Service Menu, you will navigate a numbered list of parameters (CH-01 to CH-59). To of any menu item, simply key the microphone momentarily. To alter a value , press and hold the PTT while rotating the VFO knob up or down.
The most common reason to use the service menu is to correct frequency drift or align the radio to a frequency counter. It stands as a reminder that while these
"My AM carrier is too high (10 watts), but the radio is set to low power." Solution: Go to P-07 (High Power Scale). Reduce the value from 120 to 85. This digitally reduces the drive voltage to the RD16HHF1 finals. Do not exceed 120.
Newer firmware revisions feature locked "ceilings" on certain power parameters. Even if you raise the numerical value to its maximum, the microprocessor caps the actual drive current to protect the final transistors from thermal runaway.
: Press and hold the [MENU] and [MODE] buttons simultaneously while turning the radio on.
This comprehensive guide covers everything you need to know about the updated AnyTone AT-5555N II service menu, including how to safely access it, navigate its hidden settings, and recalibrate your radio for peak performance. Understanding the AnyTone AT-5555N II Service Menu