Anytone At5555n Ii: Service Menu Work

Honestly?

: Within two seconds (while the LCD segments are all visible), quickly press the following buttons in order: DW , RB , NB , SCAN , MEM , and EMG .

Once inside, you will navigate through 59 different settings using the channel selector. To adjust a value, simply . The changes are saved immediately when you release the PTT. To exit, just turn the radio off and back on.

The most important rule is to and to understand that there is no "factory reset" for the changes made in this menu. The radio's permanent storage is updated in real-time as you make adjustments, so one wrong move can lead to performance issues or even permanent damage if you're not careful.

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Controls BFO frequency, local oscillator offset, and fine-tuning limits.

While AnyTone frequently updates its firmware, the core alignment parameters in the AT-5555N II service menu cover several critical hardware functions. 1. Frequency Calibration (REF / FREQ)

If you want to fine-tune a specific parameter, tell me (AM, FM, or SSB) or what test equipment you have available (like a power meter or frequency counter) so I can provide step-by-step instructions. AI responses may include mistakes. Learn more Share public link

Establishes the baseline voltage limit for frequency steps ending in .x00\text kHz . Fine Tuning Limit - anytone at5555n ii service menu work

To enter the hidden service menu, follow this specific key sequence: Turn the radio . Press and hold the FUNC button while turning the radio ON .

: Sets the Peak Envelope Power (PEP) for Single Sideband. 4. Modulation and Deviation (AM-M / FM-D)

: Compared to the older AT-6666, the AT-5555N II is praised for its "rock solid" SSB performance and superior noise filtering once properly aligned.

Modifying service menu values carries inherent risks. Improper calibration can degrade your signal quality, cause interference, or permanently damage the transceiver components. Golden Rules of Radio Alignment Honestly

Dictates the tracking voltage for standard split frequencies ending in .x05\text kHz . Fine Tuning Limit -

Once adjustments are complete, press and hold the FUNC key or power down the radio to save the new parameters into the EEPROM memory. Key Functions and Parameters Explained

If you decide to enter the service menu for any reason, the most important rule is to

After some digging and testing, here’s what I found: To adjust a value, simply

is an incredibly capable 10-meter radio, and its service menu unlocks deeper levels of performance for enthusiasts. To help you get the most out of your radio, let me know: