Treble

To increase the amount of treble (high range frequency), press and hold the TREB upper button until the desired level of treble is reached.

To decrease the amount of treble, press and hold the TREB lower button until the desired level of treble is reached.

Press the center of the TREB button to return the treble level to the center position.

When the TREB increase or decrease button is pressed, the treble level indicator will appear on the radio display.