Anytone: At-5555n Ii Service Menu 2021

The AT-5555N II is typically factory-set for 28.000–29.700 MHz. Users often seek to expand frequency coverage.

While AnyTone occasionally updates firmware abbreviations, the AT-5555N II service menu typically contains variations of the following alignments: 1. Frequency Calibration (REF / CLK)

Once in the service menu, navigation is generally straightforward: anytone at-5555n ii service menu

Used alongside an RF signal generator pumping a precise -73dBm (50uV) signal into the antenna jack to calibrate the receiving S-meter.

The service menu breaks down power settings by mode. You will typically see individual parameters for: Sets the constant carrier output for FM. AM Power (AM POW): Sets the dead-carrier power for AM. The AT-5555N II is typically factory-set for 28

If you're not comfortable with the risks, consider alternative and safer ways to customize your AT-5555N II:

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) Frequency Calibration (REF / CLK) Once in the

: Keying the mic allows you to check the current value for certain active settings. Common Settings CH-52 (RFG)

If done correctly, the radio will enter Service Mode, giving you access to the hidden parameters.

Press and hold the FUNC (Function) key and the PUSH (Channel selector knob) simultaneously.

Connect the radio to a calibrated frequency counter via a dummy load. Transmit a carrier and adjust this value until the counter reads the exact target frequency. 2. Power Output Settings (POW / PWR)