Garmin GPSMAP 276C Owner's Manual - Page 74

DSC Tab, Understanding Distress Calls, Understanding Position Reports, Receiving DSC Calls - replacement

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Main Menu > DSC Tab DSC Tab Use the DSC tab (Marine Mode only) to control and set up the Digital Selective Calling (DSC) features. DSC uses marine VHF radio and GPS to transmit and receive location information. DSC is used by mariners for distress calls and position reporting. For more information about DSC and Maritime Mobile Service Identity (MMSI) numbers, see pages 112-113 in the "Appendix". DSC Page Understanding Distress Calls With your GPSMAP 276C properly connected to a VHF radio with DSC output, you can receive any DSC distress call within range. An alert message appears and a tone sounds when a distress call is received. The alarm only sounds on a distress call; position reports do not sound the alarm. Distress calls are broadcast to all DSC users in radio range and appear with a blue and white checkered icon on the DSC Call List and Log tabs. You can enter a caller's name, if it is known. The caller's name replaces the MMSI number as a reference after it is entered. Understanding Position Reports The Position Report operates similarly to the distress call. This type of contact is like a phone call; no emergency alarms are set off. Position reports are not broadcast to all DSC users and appear with a gold boat icon. Receiving DSC Calls Each time you receive a distress call or position report, a review page opens-either a DSC Position Report Page or a Distress Call Page. Both pages contain identical fields to the DSC Entry Review Page. 66 GPSMAP 276C Owner's Manual

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DSC Tab
Use the DSC tab (Marine Mode only) to control and set up the
Digital Selective Calling (DSC) features. DSC uses marine VHF
radio and GPS to transmit and receive location information. DSC is
used by mariners for distress calls and position reporting.
For more information about DSC and Maritime Mobile Service
Identity (MMSI) numbers, see
pages 112-113
in the “
Appendix
”.
DSC Page
Understanding Distress Calls
With your GPSMAP 276C properly connected to a VHF radio with
DSC output, you can receive any DSC distress call within range.
An alert message appears and a tone sounds when a distress call is
received. The alarm only sounds on a distress call; position reports
do not sound the alarm. Distress calls are broadcast to all DSC users
in radio range and appear with a blue and white checkered icon on
the DSC Call List and Log tabs.
You can enter a caller’s name, if it is known. The caller’s name
replaces the MMSI number as a reference after it is entered.
Understanding Position Reports
The Position Report operates similarly to the distress call. This type
of contact is like a phone call; no emergency alarms are set off.
Position reports are not broadcast to all DSC users and appear with a
gold boat icon.
Receiving DSC Calls
Each time you receive a distress call or position report, a review
page opens—either a DSC Position Report Page or a Distress Call
Page. Both pages contain identical fields to the DSC Entry Review
Page.
66
GPSMAP 276C Owner’s Manual
M
AIN
M
ENU
>
DSC T
AB