Uniden UM425 VHF DSC 사용자 설명서

Press and hold the microphone 

2. 

 button. Speak clearly 

in your normal voice (you don’t have 

to shout). Use the 

knob 

on your UM425 to adjust the volume of the PA speaker.
Release the 

3. 

 button when you're finished talking.

To turn off the PA feature and return to the radio mode you were using, 

4. 

press and hold the 

 button for two seconds again.

Public Address 

Mode Selected

Press and hold the 

1. 

 button for two seconds 

to activate the PA feature.

The display shows PA in the 

upper right hand corner.

UM425 VHF OM.indd   50

28/9/11   11:55:22 AM