Anytone At5555n Ii Service Menu Work ((top)) Jun 2026

A non-inductive 50-Ohm dummy load rated for at least 100 Watts. Never transmit calibration tones into an antenna.

Do you have access to like a dummy load or wattmeter?

Modifying settings in the service menu alters the core operational firmware of the transceiver. If you change a setting without recording its factory baseline, your radio may suffer permanent alignment errors or damage components like the final transistors. anytone at5555n ii service menu work

Calibrated using a two-tone audio generator to verify the final transistors reach peak linear output (around 50W–60W PEP) without clipping or distorting. 3. S-Meter Calibration (RX Gain)

The most reliable method reported for the Version 2/N II model involves a specific button sequence during power-up: A non-inductive 50-Ohm dummy load rated for at

. The default is often around 31; increasing this (up to 63) can boost your transmit audio level. Power Levels:

The AnyTone AT-5555N II includes a hidden service menu used by technicians for calibration, diagnostics, and programming checks. This article documents how to safely access the service menu, common menu items and their meanings, recommended procedures, and safety precautions. Only qualified technicians should perform service-menu operations; incorrect settings can render the radio inoperable or violate regulatory rules. Modifying settings in the service menu alters the

: Turn the radio off. Ensure all switches are in the upper position except for NB/ANL, which should be set to Activation : Press and hold both the buttons simultaneously while turning the radio on.

The AnyTone AT-5555N II is a highly popular, modernized all-mode ten-meter transceiver. While the standard user menu handles day-to-day operations, the hidden service menu allows technicians and advanced operators to calibrate internal parameters. Accessing and adjusting this menu requires precision, as incorrect settings can degrade performance or damage the radio. Understanding the Service Menu

Tweak the parameter to lock in fine adjustments. This step-by-step order preserves the linearity of the fr0-fr9 fine-tuning voltages, ensuring smooth clarifier operation.

Once you've accessed the service menu, you'll see a list of options. Use the following buttons to navigate: