Garmin 521s 用户指南

Digital Selective Calling

1.  Select 

 > 

.

2.  Select 

 to toggle it on or off.

You can make calls to a DSC contact from the chartplotter. See 

 for information on making an individual routine call.

1.  While viewing a chart, press 

 > 

 > 

> 

 > 

.

2.  Use the 

 to enter the Maritime Mobile Service Identity 

(MMSI) number of the vessel, and press 

.

3.  Use the on-screen keyboard to enter the name of the vessel, and 

select 

.

The DSC list is a log of the most-recent DSC calls and other DSC 

contacts you have entered. The DSC list can contain up to 100 

entries. The DSC list shows the most-recent call from a boat. If a 

second call is received from the same boat, it replaces the first call in 

the call list.
From a chart screen, press 

 > 

 > 

> 

.

If your Garmin chartplotter and VHF radio are connected via NMEA 

0183 or NMEA 2000, your chartplotter alerts you when your VHF 

radio receives a DSC distress call. If position information was sent 

with the distress call, that information is also available and recorded 

with the call.
The   symbol designates a distress call in the DSC List and marks 

the position of a vessel on the Navigation chart at the time the DSC 

distress call was sent.

1.  Select 

 to view details about the call.

2.  Complete one of the following:

Select 

 to set up an individual routine call with 

). This option 

is only available if you are using a Garmin NMEA 2000-

compatible VHF radio.
Select 

 to edit the vessel name and add a comment. If 

your radio is tracking the position of the vessel, select 

 to 

show or hide the trail line for the vessel, and select 

 

to change the line color. Select

 to delete the 

call report. Select 

to set a waypoint at the 

position sent with the distress call.

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