A common question from users is whether a firmware update will erase their carefully made service menu adjustments. Fortunately, user reports confirm that service menu settings are generally preserved during a firmware upgrade. Community member Dr_DX notes that after a successful firmware update, "values I had previously changed in the service menu remain in place".
Use the Channel Selector knob to move through numbered menu items.
Controls the maximum width of the transmitted FM signal. Setting this too high causes splatter into adjacent channels and violates bandwidth regulations. anytone at5555n ii service menu updated
If you want, I can:
Accessing the service menu on the AnyTone AT-5555N II allows you to adjust internal alignment settings like modulation, RF gain, and frequency fine-tuning. A common question from users is whether a
. If your radio is off-frequency on USB/LSB, experts suggest adjusting first before tweaking IC9 (Modulation) : In some updated versions, this setting controls the modulation level
These are commonly used to adjust the modulation swing and High/Low power output settings for AM. Use the Channel Selector knob to move through
If the radio is slightly off-frequency, use the loC (Local Oscillator) setting, as suggested in technical forums.
Follow these best practices at all times:
The primary source of information on the Anytone AT-5555N II's service menu comes from grassroots efforts within the radio community, which has done important work in demystifying it. However, as many users have noted, there is a clear and ongoing need for an official, complete "proper alignment / service menu information" guide from the manufacturer.
The (also called "hidden menu" or "alignment mode") of the AnyTone AT-5555N II is not intended for end users . Entering this menu and changing values can: