First you need to make sure that your radio is connected to the 13.8 volt regulated power supply. Use your calibrated DC voltage meter to check your power supply voltage.

Then you need to enter secret menu, turn off your radio and press button A, B, C simultaneously and press ON button.

Go to menu #017 and make sure the value is 138. Press Function button to save. Done.

By 9M2PJU

Amateur radio operator from Malaysia

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