Anytone At-5555n Ii Service Menu !!link!! -

The radio should now display "CH-01" or similar, indicating you are in the service mode. You can navigate settings using the

(If the unit uses a different button combo, try [MENU] + [#] on power-up; stop if the screen freezes or the radio behaves oddly.) anytone at-5555n ii service menu

Do not simply switch off the main DC supply while inside the menu; allow the microcontroller to close its write-protect routines. The radio should now display "CH-01" or similar,

Transmitters are calibrated to meet specific legal requirements regarding frequency stability and bandwidth. Improper adjustments can cause the radio to operate outside of legal specifications, potentially causing interference with other services. Improper adjustments can cause the radio to operate

Controls the local oscillator offset for frequency centering.

: Rotate the channel switch or VFO knob to cycle through the menu items. Adjusting Values : To change a value, press and hold the PTT (Push-to-Talk) button while rotating the channel switch.