The AnyTone AT-5555N II is a highly popular, modernized 10-meter amateur radio transceiver. While the standard software menus allow you to control basic operations, the hidden (or alignment menu) unlocks the ability to calibrate the hardware directly. Accessing this menu allows technicians to fine-tune power output, adjust modulation levels, and correct frequency drift without opening the radio chassis.
Make adjustments in short bursts. When tuning power parameters, long key-downs into a dummy load generate significant heat, which can warp your readings as the radio's components warm up.
Note: Depending on your specific firmware revision (e.g., v1.00 vs v2.00+), the exact naming conventions of the service parameters may vary slightly. Key Parameters and Alignment Settings
To ensure the reference oscillator is accurate.
Ensure the radio is completely turned off using the volume/power knob.
Calibrates the Peak Envelope Power (PEP) limit for Upper and Lower Sidebands. 3. S-Meter Calibration (RX S1 / RX S9)
Adjusting power output levels or modulation depth beyond factory specifications can cause the final power transistors to overheat and fail.
Improper adjustments in the service menu can cause the radio to transmit out of frequency or damage the final transistors. Ensure you have a frequency counter or calibrated receiver to verify changes. Anytone 5555n Ii Service Menu - Google Groups
Setting the minimum and maximum output power for different modes (AM, FM, SSB).
The AnyTone AT-5555N II is a highly popular, modernized 10-meter amateur radio transceiver. While the standard software menus allow you to control basic operations, the hidden (or alignment menu) unlocks the ability to calibrate the hardware directly. Accessing this menu allows technicians to fine-tune power output, adjust modulation levels, and correct frequency drift without opening the radio chassis.
Make adjustments in short bursts. When tuning power parameters, long key-downs into a dummy load generate significant heat, which can warp your readings as the radio's components warm up.
Note: Depending on your specific firmware revision (e.g., v1.00 vs v2.00+), the exact naming conventions of the service parameters may vary slightly. Key Parameters and Alignment Settings anytone at-5555n ii service menu
To ensure the reference oscillator is accurate.
Ensure the radio is completely turned off using the volume/power knob. The AnyTone AT-5555N II is a highly popular,
Calibrates the Peak Envelope Power (PEP) limit for Upper and Lower Sidebands. 3. S-Meter Calibration (RX S1 / RX S9)
Adjusting power output levels or modulation depth beyond factory specifications can cause the final power transistors to overheat and fail. Make adjustments in short bursts
Improper adjustments in the service menu can cause the radio to transmit out of frequency or damage the final transistors. Ensure you have a frequency counter or calibrated receiver to verify changes. Anytone 5555n Ii Service Menu - Google Groups
Setting the minimum and maximum output power for different modes (AM, FM, SSB).
