Press the "F" key , then "7MODE" to switch the display between the channel number and its assigned frequency. Key Features & Settings

Rotate the VOL/PWR knob on the top of the radio clockwise to turn it on and adjust the volume.

By default, it typically includes 69 LPD channels (433 MHz) and 8 PMR channels (446 MHz). Manuals & Resources Руководство по эксплуатации

To prevent accidental changes, press and hold the "F" key until the lock icon appears.

Use the up/down arrows on the front keypad to cycle through the 128 available channels.