Bedienungsanleitung Garmin GPSMAP 3206 (Seite 112 von 130) (Englisch)

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104 GPSMAP 3206/3210 Owner’s Manual

aPPendIX > dIgItal selectIve callIng (dsc)

appendIX

WAAS Capability

The GPSMAP 3206/3210 is capable of receiving WAAS satellite signals. WAAS

is an FAA (Federal Aviation Administration) funded project to improve the

overall accuracy and integrity of the GPS signal for aviation use, but land and

sea-based users can also benet from this system.. There are currently two WAAS

satellites that can be received in the U.S.A., one over the Atlantic Ocean and one

over the Pacic Ocean, in a geostationary orbit over the equator. Effective use of

the WAAS satellite signal may be limited by your geographic location in relation

to those satellites, now in developmental service. WAAS satellite signal reception

requires an absolute clear view of the sky and works best when there are no

nearby obstructions such as buildings or mountains.

WAAS satellites are numbered 33 or higher when viewing the sky view on your

GPSMAP 3206/3210. Initial reception of the WAAS signal may take up to 15-

20 minutes, then 1–2 minutes afterwards. When WAAS differential correction

has been received for GPS satellites (numbers 32 or below), a “D” appears

in the signal bar of the sky view and “Ready For Navigation with WAAS”

appears in the Status eld. To learn more about the WAAS system, its satellite

locations and current state of development, visit the FAA web site (gps.faa.gov).

Because WAAS requires CPU resources of the GPSMAP 3206/3210 to search

for and track the satellites, you can disable the WAAS feature to improve unit

performance if WAAS reception is not available in your area.

To disable or enable WAAS capability:

1. OntheGPStab,highlighttheSetupsubtab.

2. UsetheROCKERtohighlighttheWAASeld,andpressENTER.

3. HighlightOnorOff,andpressENTER.

Digital Selective Calling (DSC)

When the Garmin GPSMAP 3206/3210 is connected to a VHF radio with DSC

support, the GPS unit displays a Call List, Log, and a Directory to store incoming

information received from another user’s DSC capable VHF/GPS combination.

Basic wiring is required for the Garmin unit and VHF radio to send and receive

NMEA data from each other. See the GPSMAP 3206/3210 & GPS 17 Installation

Instructions.

What is DSC?

DSC uses marine VHF radio and GPS technologies to transmit and receive

location information. DSC is used by mariners to assist them in two major areas:

distress calls and position reporting.

A non-emergency DSC position report allows mariners to exchange and display

the positions of other boats. When a DSC position is received, the mariner can

choose to create a waypoint or to show the received position on an electronic

map.

An emergency DSC distress call allows a vessel in trouble to transmit a

substantial amount of information in a single transmission or “call” without

the need for voice communication. When any nearby rescuer receives the DSC

signal, an alarm sounds, and they immediately receive the position of the caller.

The rescuer can then choose to navigate (Go To) the callers position to assist or

forward the call on to the Coast Guard. When the Coast Guard receives the call,

they can immediately access the callers information (such as who they are and the

type of vessel) in their database while they are in transit to the caller’s position.

This makes DSC a time-saver, especially in an emergency situation. To use DSC,

users must rst register their VHF radio with the FCC and receive a Maritime

Mobile Service Identity (MMSI) number.

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