Anytone At5555n Ii Service Menu Work Jun 2026

Sets the AM carrier "Dead Key" power when the physical front PWR knob is fully turned down (ideal for tuning to 2W for external amplifiers). Modulation Swing

: If successful, the screen should display "FM" (Factory Menu) or start showing menu numbered items (e.g., #01). Critical Warnings anytone at5555n ii service menu work

Here is the essential warning: Unlike the service menu of a Yaesu or Icom, the AT-5555N II’s menu lacks a "Factory Reset" option. If you mistakenly set the PLL reference to an extreme value, the radio will not lock onto any frequency. If you max out the ALC, your transmit signal will become a distorted, splattering mess. Sets the AM carrier "Dead Key" power when

: Setting transmission power (TX power) too high can overheat and destroy the final transistors (MOSFETs). If you mistakenly set the PLL reference to

Technical documentation, such as the full service manual or video demonstrations from certified technicians, provides essential context for these adjustments. For those performing this work, utilizing specialized test equipment like an oscilloscope or a signal generator is recommended to ensure the radio remains within its designed operating specifications and safety limits. Following established amateur radio engineering standards helps maintain the longevity and legality of the equipment. Anytone 5555n Ii Service Menu - Google Groups

: Adjusts the reference frequency for the 10.24MHz BFO (Beat Frequency Oscillator). : Controls the local oscillator offset. fr0, fr4, fr5, fr9