Anytone At-5555n Ii Service Menu -
Before considering any modifications to the internal settings of a transceiver, it is vital to understand the risks involved. The service menu is intended for use by qualified technicians with specialized calibration equipment.
Before entering the service menu, you must understand that these settings directly control the radio's internal alignment.
Once the Service Menu is active, the standard operational buttons are remapped to navigation functions: anytone at-5555n ii service menu
Note: Some versions may require a simpler sequence: hold MENU and MODE, power on, then press each button moving down the line starting with .
Write down the original value of every setting you change. Do not adjust anything unless you own a calibrated frequency counter, a watt meter with a dummy load, and an oscilloscope (for modulation). Once the Service Menu is active, the standard
: Changing values in the service menu without proper test equipment (like a frequency counter or signal generator) can significantly degrade the radio's performance or cause it to operate off-frequency. Google Groups alignment values for SSB or CW modes to help center your frequency? Anytone 5555n Ii Service Menu - Google Groups
For more information on the Anytone AT-5555N II and its service menu, you can: : Changing values in the service menu without
: Some versions use a different combination: Turn on while holding FUNC , then quickly press RB , NB , and DW . Key Service Menu Settings
: Adjusts the frequency for CW, USB, and LSB modes. loC LO
There are two primary methods reported for entering the "Hidden" or Service Menu on the version II: Start with the radio OFF .
Calibration should ideally be done using a calibrated dummy load, power meter, and frequency counter to avoid radiating illegal signals or damaging the final stage transistors.