Garmin GPSMAP 2106, 2110 Owner's Manual

Also see for GPSMAP 2106 - Marine GPS Receiver: Quick reference guide Install guide Installation instructions

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Garmin GPSMAP 2106, 2110 Owner's Manual Manual pdf 94 page image

86 GPSMAP 2106/2110 Owner’s ManualAPPENDIX > LORAN TD SYSTEMFederal Users in the United StatesFederal users can obtain MMSI assignments from their agency radio spectrummanagement office. These procedures are currently under review by the NTIA(National Telecommunications and Information Administration).Users Outside the United StatesUsers can obtain an MMSI assignment from their telecommunications authorityor ship registry, often by obtaining or amending their ship station license.Users in CanadaIndustry Canada is responsible for assigning MMSI numbers to commercial andrecreational vessels. Information is available at the following Web site:http://apollo.ic.gc.ca/english/mmsi.html.For more information regarding MMSIs visit:http://www.navcen.uscg.gov/marcomms/gmdss/mmsi.htm.How Can Garmin Help You with DSC?To receive Distress Calls or Position Reports, you must have a DSC-equippedchartplotter as well as a VHF radio with DSC support. During normal, non-emergency Position Report communication, Channel 70 (156.525 MHz) has beenset aside as the VHF/DSC digital call channel.For a Distress Call, a mariner presses the MayDay button on the VHF radio.The call transmits on an emergency channel with the MMSI number attached tothe call (if you have DSC support). Any DSC-equipped mariner (on sea or land)within range can receive the call.LORAN TD SystemLORAN-C is a radio navigation aid operated and maintained in the U.S.A bythe United States Coast Guard. The LORAN (LOng RAnge Navigation) systemcovers the entire U.S.A. and the U.S. Coastal Confluence Zone. From theperspective of a mariner, the system is used for ocean and coastal navigation. Itcan be used as a supplemental system for harbor and harbor approach navigation,and it is used for inland navigation by recreational vehicles.LORAN TD FeatureThe LORAN TD (Time Delay) feature eases the transition from using LORANto using GPS. The GPSMAP unit automatically converts GPS coordinates toLORAN TD for those who have a collection of LORAN fixes for favorite fishingspots and other waypoints recorded as TDs. You can show your position as aTD or enter waypoints as TDs. The expected accuracy from this conversion isapproximately 30 meters. When the unit is placed in the LORAN TD formatmode, it simulates the operation of a LORAN receiver. Position coordinates canbe displayed as TDs, and you can use all navigation functions as if the unit wasactually receiving LORAN signals.Using the LORAN TD FormatWhen creating new waypoints using LORAN TD coordinates, you must setthe correct LORAN chain number and secondary stations in the Setup TD fieldbefore storing a waypoint. You must have the correct chain number and thesecondary station identifiers to use this option correctly. These values vary foreach coordinate set or geographical location. Failure to enter correct informationcould result in inaccuracies for the desired destination. After the waypoint isstored in the unit’s memory, it always references the LORAN chain numberand secondary stations currently selected in the Setup TD field. If you enter adifferent LORAN chain number, change the secondary stations or offsets in theSetup TD field, the active waypoint information reflects those changes. Because