The AnyTone AT-5555N II has cemented its reputation as a powerhouse in the CB and 10-meter amateur radio community. Known for its robust build, excellent receiver sensitivity, and impressive power output straight out of the box, it is a favorite for DX enthusiasts and local communicators alike.
The service menu provides a digital interface to control these electronic components. It allows for the precise adjustment of: Frequency calibration (Reference oscillator tuning)
If you want, I can:
Always write down every value for all 50+ menu items before changing anything. If you lose your original settings without a backup, the radio may require professional realignment with a signal generator. anytone at-5555n ii service menu
What are you trying to fix? (e.g., low audio, off-frequency, low power)
Absorbs the transmitted RF power safely without broadcasting a signal over the air. Measures exact PEP and carrier power levels. Frequency Counter
The AT-5555N II is sold as a 10m/12m amateur radio. The service menu does add 11m (CB) frequencies—that is controlled by a separate jumper or firmware region lock. The service menu is for calibration only, not band expansion. The AnyTone AT-5555N II has cemented its reputation
Hook the radio up to a calibrated frequency counter or dummy load paired with a known accurate receiver. Adjust this parameter until your transmitted carrier matches the exact target frequency (e.g., 27.205 MHz for Channel 20). 2. RF Power Output (POW / PA / AM / FM / SSB)
While exact parameters can shift across manufacturing batches, the core alignment groups include: 1. Frequency Calibration (REF / FREQ)
Note: exact key sequence may vary by firmware version. If these don’t work, consult the official service manual or firmware release notes. It allows for the precise adjustment of: Frequency
The Internal Frontier: Exploring the Service Menu in Modern Radios
To access the factory service menu and unlock alignment settings, you must execute a specific button sequence during the initialization phase: