Note: These addresses are for the model only, not the original 5555N.
: Sets the standard S9 reference line. Typically calibrated using an RF signal generator injecting a -73 dBm (50 microvolt) signal into the antenna jack. 4. Frequency Reference Alignment
Many units leave the factory set conservatively around 31 . Operators looking for wider audio response tweak the internal modulation parameters up to a maximum cap of 63 . 3. SSB Frequency Offset Fine Tuning ( bfC , loC , fr0 - fr9 ) anytone at5555n ii service menu updated
: Lower values on AM modulation settings typically result in higher modulation (less clamping).
The updated service menu groups calibration settings into specific operational categories. The exact terminology may slightly vary based on your specific firmware revision, but they generally follow this layout: 1. Frequency Calibration ( FRQ / REF ) Note: These addresses are for the model only,
The Anytone AT-5555N II is a highly popular, modernized 10-meter amateur radio transceiver. Known for its robust output, excellent filtering, and flexible programming, it is a favorite among radio enthusiasts. While standard operational settings are easily accessible through the front panel function menus, the transceiver also features a hidden (sometimes referred to as the factory alignment or engineering menu).
You must write down every single original hex or decimal value before changing it. There is no automatic "factory reset" that restores individual service menu calibrations once they are overwritten. and flexible programming
The updated firmware versions of the AT-5555N II require a specific power-on key combination to prevent accidental entry into the alignment mode. Turn the radio completely .