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. It looks great, but something is off—perhaps the S-meter is pegged, or the frequency is slightly "drifting" on Sideband (SSB). You know there's a deeper layer of control beyond the standard Function Menu .
If you have the proper test equipment, follow this workflow: anytone at5555n ii service menu work
: Press and hold the MENU and MODE buttons simultaneously while turning the radio on. If you have the proper test equipment, follow
This article will explain exactly what the Service Menu is, how to access it safely, what each critical function does, and how to perform the work required to bring your radio back to peak performance. The radio keys 4 watts
Your linear amplifier requires a 2-watt deadkey. The radio keys 4 watts.
Unlike older radios (like the Galaxy 959 or Uniden 980), the AT-5555N II service menu does save changes automatically.
The AT-5555N II uses a button combination sequence to unlock the hidden engineering parameters. Do not confuse this with the simple "Factory Reset" (hold FUNC + A/F while powering on). The Service Menu is deeper.