Uniden UM425 VHF DSC 사용자 설명서

When the other station accepts the call, both radios switch to the se-

• 

lected response channel for voice transmission. 
If the other station cannot respond on the channel you selected, the 

• 

radio displays Not support CH.

Group calling calls all the stations that share your group MMSI. You must 

have a group MMSI programmed into the radio to make a group call, and 

the stations (boats) you are calling must have this same group MMSI 

programmed into their radios.

All ships calling contacts all DSC radios within range of your boat. You should 

only use all ships calling in the event of a Safety warning (such as debris in 

the water) or to request assistance in an Urgency (any situation where your 

vessel has a serious problem but is not yet in distress).

Open the menu and select the 

1. 

DSC Call sub-menu. 

Select 

2. 

All Ships, and then choose whether this is an Urgency call or a 

Safety call.
The radio asks you to confirm the call. Select 

3. 

Send to continue with the 

call or select Cancel to cancel the call.
The radio automatically switches to channel 70 to transmit the call 

4. 

request then automatically switches to channel 16, the designated 

response channel for all-ships calling.

Press the 

1. 

 button to display the menu.

Choose the 

2. 

DSC Call sub-menu and select Group.

The radio prompts you to select a response channel. Use the 

3. 

 and 

 buttons to scroll through the available channels. 

When you reach the channel you want to use for a response, press the 

 button.

The radio asks you to confirm the call. Select 

4. 

Send to continue with the 

call or select Cancel to cancel the call.
The radio switches to channel 70 to transmit the call request then 

5. 

automatically switches to the selected response channel.

UM425 VHF OM.indd   31

28/9/11   11:55:17 AM