Anytone At-5555n Ii Service Menu ~upd~

To access the service menu on the Anytone AT-5555N II , use the following key sequence: the radio. Hold down the buttons simultaneously and turn the radio two seconds

“I used the Service Menu to bring my AT-5555N II back to life after a failed mod. Reset the PLL reference and SSB ALC—now it’s the best-sounding radio in my shack.”
— Mike, K6MRC anytone at-5555n ii service menu

Anytone AT-5555N II: Service Menu Guide

1. How to Enter the Service Menu

The method differs slightly depending on the specific firmware version of your radio, but the following method is standard for the N-II series: To access the service menu on the Anytone

1. Enter Service Menu.
2. Rotate to F-ERR or PLL REF.
3. Connect radio to a Frequency Counter or a calibrated SDR receiver.
4. Key the radio on CW or AM unmodulated (or just use the carrier).
5. Adjust the value until the counter reads exactly 27.205.000 MHz (Channel 20). For 10m: 28.500.000 MHz.
6. Save. Exit.

Modify Value: While holding the PTT, rotate the Channel Selector to change the numerical value. Save & Exit: Turn the radio OFF to save your new settings. Common Known Settings Enter Service Menu

4. Critical Adjustments Explained

A. Adjusting RF Power (PO)

Conclusion