A 50-ohm non-inductive dummy load rated for at least 100 watts. Never transmit into an open antenna while adjusting service settings.
The Anytone AT-5555N II service menu is a powerful built-in tool that eliminates the need for manual internal potentiometer tuning. When used correctly with proper diagnostic equipment, it can breathe new life into your radio, correcting frequency drift and optimizing audio drive. However, casual tweaking without a roadmap can quickly render the radio useless. Always document your starting values so you can safely trace your steps back to functional factory baselines. If you need help with a specific adjustment, let me know:
Once inside, you'll use the to scroll through all the parameters (e.g., CH-01, CH-02...). Interestingly, to edit a parameter's value, you must press and hold the PTT (Push-to-Talk) button on the microphone while turning the VFO knob to adjust it up or down. Releasing the PTT button will likely save the new value. anytone at-5555n ii service menu
While holding those buttons down, turn the radio on.
: Press and hold the Menu and Mode buttons simultaneously. A 50-ohm non-inductive dummy load rated for at
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Compare the service menu to the .
Sets the Peak Envelope Power (PEP) for Single Sideband.
Verifies accurate transmission frequencies down to the single Hertz. When used correctly with proper diagnostic equipment, it
I can provide specific step-by-step target values for your exact scenario. Share public link
buttons simultaneously while flicking the power switch. The display blinked, shedding its consumer-friendly face for the stark, raw data of the Service Menu