Garmin GPSMAP 3206 Owner's Manual

Also see for GPSMAP 3206 - Marine GPS Receiver: Installation instructions Install guide Installation instructions Important safety information Quick reference guide

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Garmin GPSMAP 3206 Owner's Manual Manual pdf 112 page image

10 GPSMAP 3206/3210 Owner’s ManualaPPendIX > dIgItal selectIve callIng (dsc)appendIXWAAS CapabilityThe GPSMAP 3206/3210 is capable of receiving WAAS satellite signals. WAASis an FAA (Federal Aviation Administration) funded project to improve theoverall accuracy and integrity of the GPS signal for aviation use, but land andsea-based users can also benefit from this system.. There are currently two WAASsatellites that can be received in the U.S.A., one over the Atlantic Ocean and oneover the Pacific Ocean, in a geostationary orbit over the equator. Effective use ofthe WAAS satellite signal may be limited by your geographic location in relationto those satellites, now in developmental service. WAAS satellite signal receptionrequires an absolute clear view of the sky and works best when there are nonearby obstructions such as buildings or mountains.WAAS satellites are numbered 33 or higher when viewing the sky view on yourGPSMAP 3206/3210. Initial reception of the WAAS signal may take up to 15-20 minutes, then 1–2 minutes afterwards. When WAAS differential correctionhas been received for GPS satellites (numbers 32 or below), a “D” appearsin the signal bar of the sky view and “Ready For Navigation with WAAS”appears in the Status field. To learn more about the WAAS system, its satellitelocations and current state of development, visit the FAA web site (gps.faa.gov).Because WAAS requires CPU resources of the GPSMAP 3206/3210 to searchfor and track the satellites, you can disable the WAAS feature to improve unitperformance 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 field, 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 DSCsupport, the GPS unit displays a Call List, Log, and a Directory to store incominginformation received from another user’s DSC capable VHF/GPS combination.Basic wiring is required for the Garmin unit and VHF radio to send and receiveNMEA data from each other. See the GPSMAP 3206/3210 & GPS 17 InstallationInstructions.What is DSC?DSC uses marine VHF radio and GPS technologies to transmit and receivelocation 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 displaythe positions of other boats. When a DSC position is received, the mariner canchoose to create a waypoint or to show the received position on an electronicmap.An emergency DSC distress call allows a vessel in trouble to transmit asubstantial amount of information in a single transmission or “call” withoutthe need for voice communication. When any nearby rescuer receives the DSCsignal, 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 orforward 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 thetype 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 first register their VHF radio with the FCC and receive a MaritimeMobile Service Identity (MMSI) number.