: Controls the modulation swing. Lowering these values often increases modulation. Ch 52 RFG
: Controls the Local Oscillator offset. Experts recommend adjusting this
Rotate the Channel Selector knob (or use the microphone up/down keys) to scroll through the different hidden menu options. anytone at-5555n ii service menu
For more information on the Anytone AT-5555N II and its service menu, you can:
If an accidental alignment value compromises the operational integrity of the radio, perform a global factory reset to restore standard operating baselines: Turn off the radio. Press and hold both the and SCAN keys simultaneously. Turn the radio on. : Controls the modulation swing
While holding the PTT , rotate the Channel Selector to change the numerical value. Save & Exit: Turn the radio OFF to save your new settings. Common Known Settings
Complete Guide to the AnyTone AT-5555N II Service Menu The AnyTone AT-5555N II is a highly popular, robust 10-meter radio favored by amateur operators and radio enthusiasts for its high power output, clear audio, and flexible programming. While the standard user menu allows you to change basic settings like roger beeps, mic gain, and display colors, the hidden (or Alignment Menu) provides deep access to the hardware calibration layers of the radio. Experts recommend adjusting this Rotate the Channel Selector
Requires attaching a known 100-ohm load (which creates a perfect 2:1 SWR) or 150-ohm load (3:1 SWR) to calibrate the internal standing wave ratio meter bridge. 4. Modulation and Deviation (MOD / DEV)
| Menu Item | Commonly Associated Function | Notes / Typical Default | | :--- | :--- | :--- | | CH-52 | RF Gain (RFG) | Adjusts front-end sensitivity. Default ~86. Increasing can reduce noise. | | - | AM Low Power | Sets AM carrier power. Adjustable from S1 to S12. | | - | AM High Power / Swing | Sets AM peak modulation power. | | - | FM Power | Sets FM transmission power. Adjustable from S1 to S12. | | - | SSB Power | Sets SSB peak power. Adjustable from S1 to S12. | | - | RXBPF | Adjusts receive bandpass filter, affecting audio "thinness". | | - | AM/FM/USB/LSB Tone | Adjusts tone characteristics for different modes. | | - | BFO | Adjusts the 10.24MHz BFO for fine-tuning SSB. |
Change the transceiver mode to the target band (e.g., AM or FM) via the switch.
Every radio leaving the factory contains unique values written to its EEPROM memory. These custom numbers account for microscopic differences in component manufacturing tolerances. Calibration & Tuning Procedures 1. Correcting Clarifier Drift and SSB Step Issues