The factory calibration values tend to be consistent across different units of the same revision. While you should still record your own values, it is reassuring to know that you can rely on other users' default settings as a baseline for comparison if you are troubleshooting.
Follow these best practices at all times:
For users who prefer a graphical interface, many of these "Background Functions" (such as Noise Reduction levels, SWR protection, and Mic Gain) can be adjusted using the official PC programming software and a compatible programming cable . However, core hardware alignment (like power stages and reference oscillators) usually remains restricted to the boot-up service menu. AT-5555 service menu alignment procedure anytone at5555n ii service menu updated
: To modify a value, hold the PTT while rotating the Channel Selector. Saving : Turn the radio off to save your changes.
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 factory calibration values tend to be consistent
Calibrates the internal forward and reflected power sensors so the on-screen SWR meter accurately reads antenna mismatches. 5. Squeld and AGC Thresholds
Standard manufacturer warranties do not cover damage caused by unauthorized service menu calibration. However, core hardware alignment (like power stages and
On some updated mainboards, the entry method has changed to prevent accidental entry:
Within 2 seconds, release them and quickly press the top row of 6 buttons in order from left to right: , [RB] , [NB] , [SCAN] , [MEM] , and [EMG] .