Anytone At5555n Ii Service Menu Updated ((hot)) Info

This adjusts the master reference oscillator (TCXO/crystal alignment). If your radio is slightly off-frequency (e.g., transmitting on 27.385.2 MHz instead of exactly 27.385.0 MHz), this value is tweaked while transmitting a continuous carrier into a frequency counter until the output hits dead-center. Common Technical Updates & Discoveries

While official documentation is sparse, enthusiast testing has identified several key alignment settings within this menu:

: This controlled the local oscillator offset. Elias learned to adjust this first to get close to the target frequency before fine-tuning with the Modulation (IC9) : He navigated to the

Accessing this service menu allows advanced users, technicians, and operators to fine-tune the hardware parameters of the radio—such as RF power output, S-meter calibration, modulation depth, and frequency alignment—without needing to open the physical chassis to turn mechanical potentiometers (trimpots). anytone at5555n ii service menu updated

The loC setting controls the local oscillator offset. If you notice that you are slightly off frequency when transmitting or receiving, you may need to tweak this setting.

The key combination to enter the factory engineering mode relies on a specific power-on sequence using the front panel buttons. Step-by-Step Entry Sequence:

Visit the AnyTone official website or the support page for the AT-5555N II . Look for: Elias learned to adjust this first to get

Optimization Tip : Avoid cranking these values to the maximum limit. Setting AM carrier power too high compresses your modulation swing, resulting in muffled, distorted audio. Keep the AM carrier around 10–12 Watts to allow full upward modulation swing. 2. Audio and Modulation Drive

🎥 Option 3: Video Concept Script (Best for TikTok/YouTube Shorts) You sitting in front of your AnyTone AT-5555N II radio with the camera focused on the digital face.

For users who prefer a graphical interface, many of these "Background Functions" (such as Noise Reduction levels, SWR protection, and Mic Gain) can be adjusted using the official PC programming software and a compatible programming cable . However, core hardware alignment (like power stages and reference oscillators) usually remains restricted to the boot-up service menu. AT-5555 service menu alignment procedure The key combination to enter the factory engineering

Never transmit into an open air antenna while adjusting service menus. Use a high-quality 50-ohm dummy load to prevent RF feedback from skewing test results.

Do you have available (e.g., wattmeter, dummy load, frequency counter)?

📝 Option 1: Informative & Cautionary (Best for Forums/Facebook Groups)