Anytone At5555n Ii Service Menu Updated -

The entry sequence for the updated Version 2 (N II) is more complex than the original model. : Start with the radio turned OFF .

| Parameter | Function | Default Value | What it controls | | :--- | :--- | :--- | :--- | | | VCO Lock Voltage | 2.5 – 4.0V | Do not adjust unless VCO unlocks. | | P-02 | PLL Reference Freq | 0 | Fine frequency calibration (TX/RX offset). | | P-03 | AM Carrier Level | 15 – 25 | Adjusts dead-key carrier for AM mode. | | P-04 | AM Modulation Limit | 90 – 95 | Max percentage of AM modulation. | | P-05 | SSB ALC Max | 80 – 95 | Prevents splatter on sideband. | | P-06 | FM Deviation | 20 – 30 | Sets narrow/wide FM shift. | | P-07 | High Power Scale | 100 – 120 | Digital power amp gain (MOSFET drive). | | P-08 | Low Power Scale | 20 – 40 | Minimum power output floor. | | P-09 | S-Meter Zero | 0 | Calibrates S9 signal reading. | | P-10 | Squelch Threshold | 5 – 15 | Minimum open point for SQL knob. | anytone at5555n ii service menu updated

service menu allows for deep calibration of the radio's frequency alignment and modulation levels, which are not accessible through the standard user menu. The entry sequence for the updated Version 2

The original service manuals had errors, such as: | | P-02 | PLL Reference Freq |

But hidden beneath that glossy interface lies a secret weapon: .

Key the microphone (PTT) to see the current value of a selected item.