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<div class="col-md-10">
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<article class="content wrap" id="_content" data-uid="NmeaParser.Messages.Dtm">
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<h1 id="NmeaParser_Messages_Dtm" data-uid="NmeaParser.Messages.Dtm" class="text-break">Class Dtm</h1>
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<div class="markdown level0 summary"><p>Local geodetic datum and datum offsets from a reference datum.</p>
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</div>
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<div class="markdown level0 conceptual"></div>
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<div class="inheritance">
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<h5>Inheritance</h5>
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<div class="level0"><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></div>
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<div class="level1"><a class="xref" href="NmeaParser.Messages.NmeaMessage.html">NmeaMessage</a></div>
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<div class="level2"><span class="xref">Dtm</span></div>
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</div>
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<div class="implements">
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<h5>Implements</h5>
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<div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.iequatable-1">IEquatable</a><<a class="xref" href="NmeaParser.Messages.NmeaMessage.html">NmeaMessage</a>></div>
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</div>
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<div class="inheritedMembers">
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<h5>Inherited Members</h5>
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<div>
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<a class="xref" href="NmeaParser.Messages.NmeaMessage.RegisterAssembly.html#NmeaParser_Messages_NmeaMessage_RegisterAssembly_System_Reflection_Assembly_System_Boolean_">NmeaMessage.RegisterAssembly(Assembly, bool)</a>
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</div>
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<div>
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<a class="xref" href="NmeaParser.Messages.NmeaMessage.RegisterNmeaMessage.html#NmeaParser_Messages_NmeaMessage_RegisterNmeaMessage_System_Reflection_TypeInfo_System_String_System_Boolean_">NmeaMessage.RegisterNmeaMessage(TypeInfo, string, bool)</a>
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</div>
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<div>
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<a class="xref" href="NmeaParser.Messages.NmeaMessage.Parse.html#NmeaParser_Messages_NmeaMessage_Parse_System_String_NmeaParser_IMultiSentenceMessage_System_Boolean_">NmeaMessage.Parse(string, IMultiSentenceMessage, bool)</a>
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</div>
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<div>
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<a class="xref" href="NmeaParser.Messages.NmeaMessage.MessageParts.html#NmeaParser_Messages_NmeaMessage_MessageParts">NmeaMessage.MessageParts</a>
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</div>
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<div>
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<a class="xref" href="NmeaParser.Messages.NmeaMessage.MessageType.html#NmeaParser_Messages_NmeaMessage_MessageType">NmeaMessage.MessageType</a>
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</div>
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<div>
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<a class="xref" href="NmeaParser.Messages.NmeaMessage.TalkerId.html#NmeaParser_Messages_NmeaMessage_TalkerId">NmeaMessage.TalkerId</a>
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</div>
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<div>
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<a class="xref" href="NmeaParser.Messages.NmeaMessage.IsProprietary.html#NmeaParser_Messages_NmeaMessage_IsProprietary">NmeaMessage.IsProprietary</a>
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</div>
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<div>
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<a class="xref" href="NmeaParser.Messages.NmeaMessage.ToString.html#NmeaParser_Messages_NmeaMessage_ToString">NmeaMessage.ToString()</a>
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</div>
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<div>
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<a class="xref" href="NmeaParser.Messages.NmeaMessage.Checksum.html#NmeaParser_Messages_NmeaMessage_Checksum">NmeaMessage.Checksum</a>
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</div>
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<div>
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<a class="xref" href="NmeaParser.Messages.NmeaMessage.Equals.html#NmeaParser_Messages_NmeaMessage_Equals_NmeaParser_Messages_NmeaMessage_">NmeaMessage.Equals(NmeaMessage)</a>
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</div>
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<div>
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<a class="xref" href="NmeaParser.Messages.NmeaMessage.Timestamp.html#NmeaParser_Messages_NmeaMessage_Timestamp">NmeaMessage.Timestamp</a>
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</div>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object)">object.Equals(object)</a>
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</div>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object-system-object)">object.Equals(object, object)</a>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gethashcode">object.GetHashCode()</a>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gettype">object.GetType()</a>
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</div>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.memberwiseclone">object.MemberwiseClone()</a>
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</div>
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<div>
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<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.referenceequals">object.ReferenceEquals(object, object)</a>
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</div>
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</div>
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<h6><strong>Namespace</strong>: <a class="xref" href="NmeaParser.html">NmeaParser</a>.<a class="xref" href="NmeaParser.Messages.html">Messages</a></h6>
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<h6><strong>Assembly</strong>: NmeaParser.dll</h6>
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<h5 id="NmeaParser_Messages_Dtm_syntax">Syntax</h5>
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<div class="codewrapper">
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<pre><code class="lang-csharp hljs">[NmeaMessageType("--DTM")]
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public class Dtm : NmeaMessage, IEquatable<NmeaMessage></code></pre>
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</div>
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<h5 id="NmeaParser_Messages_Dtm_remarks"><strong>Remarks</strong></h5>
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<div class="markdown level0 remarks"><p>This sentence is used to define the datum to which a position location and geographic
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locations in subsequent sentences, is referenced. Latitude, longitude and altitude offsets
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from the reference datum, and the selection of reference datum, are also provided.</p>
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<p>
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The datum sentence should be transmitted immediately prior to every positional sentence (e.g., <code>GLL</code>,
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<code>BWC</code>, <code>WPL</code>) that is referenced to a datum other than WGS84, which is the datum recommended by IMO.
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</p>
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<p>
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For all datums the DTM sentence should be transmitted prior to any datum change and periodically at
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intervals of not greater than 30 seconds.
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</p>
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</div>
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<h3 id="constructors">Constructors
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</h3>
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<table class="table table-bordered table-condensed">
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<thead>
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<tr>
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<th>Name</th>
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<th>Description</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td id="NmeaParser_Messages_Dtm__ctor_System_String_System_String___" data-uid="NmeaParser.Messages.Dtm.#ctor(System.String,System.String[])">
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<a class="xref" href="NmeaParser.Messages.Dtm.-ctor.html#NmeaParser_Messages_Dtm__ctor_System_String_System_String___">Dtm(string, string[])</a>
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</td>
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<td class="markdown level1 summary"><p>Initializes a new instance of the <a class="xref" href="NmeaParser.Messages.Gll.html">Gll</a> class.</p>
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</td>
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</tr>
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</tbody>
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</table>
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<h3 id="properties">Properties
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</h3>
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<table class="table table-bordered table-condensed">
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<thead>
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<tr>
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<th>Name</th>
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<th>Description</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td id="NmeaParser_Messages_Dtm_AltitudeOffset" data-uid="NmeaParser.Messages.Dtm.AltitudeOffset">
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<a class="xref" href="NmeaParser.Messages.Dtm.AltitudeOffset.html#NmeaParser_Messages_Dtm_AltitudeOffset">AltitudeOffset</a>
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</td>
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<td class="markdown level1 summary"><p>Altitude Offset in minutes</p>
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</td>
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</tr>
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<tr>
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<td id="NmeaParser_Messages_Dtm_LatitudeOffset" data-uid="NmeaParser.Messages.Dtm.LatitudeOffset">
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<a class="xref" href="NmeaParser.Messages.Dtm.LatitudeOffset.html#NmeaParser_Messages_Dtm_LatitudeOffset">LatitudeOffset</a>
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</td>
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<td class="markdown level1 summary"><p>Latitude Offset, decimal degrees</p>
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</td>
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</tr>
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<tr>
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<td id="NmeaParser_Messages_Dtm_LocalDatumCode" data-uid="NmeaParser.Messages.Dtm.LocalDatumCode">
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<a class="xref" href="NmeaParser.Messages.Dtm.LocalDatumCode.html#NmeaParser_Messages_Dtm_LocalDatumCode">LocalDatumCode</a>
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</td>
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<td class="markdown level1 summary"><p>Local datum code</p>
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</td>
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</tr>
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<tr>
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<td id="NmeaParser_Messages_Dtm_LocalDatumSubdivisionCode" data-uid="NmeaParser.Messages.Dtm.LocalDatumSubdivisionCode">
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<a class="xref" href="NmeaParser.Messages.Dtm.LocalDatumSubdivisionCode.html#NmeaParser_Messages_Dtm_LocalDatumSubdivisionCode">LocalDatumSubdivisionCode</a>
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</td>
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<td class="markdown level1 summary"><p>Local datum subdivision code.</p>
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</td>
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</tr>
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<tr>
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<td id="NmeaParser_Messages_Dtm_LongitudeOffset" data-uid="NmeaParser.Messages.Dtm.LongitudeOffset">
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<a class="xref" href="NmeaParser.Messages.Dtm.LongitudeOffset.html#NmeaParser_Messages_Dtm_LongitudeOffset">LongitudeOffset</a>
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</td>
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<td class="markdown level1 summary"><p>Longitude Offset in minutes</p>
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</td>
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</tr>
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<tr>
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<td id="NmeaParser_Messages_Dtm_ReferenceDatumCode" data-uid="NmeaParser.Messages.Dtm.ReferenceDatumCode">
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<a class="xref" href="NmeaParser.Messages.Dtm.ReferenceDatumCode.html#NmeaParser_Messages_Dtm_ReferenceDatumCode">ReferenceDatumCode</a>
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</td>
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<td class="markdown level1 summary"><p>Reference datum code</p>
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</td>
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</tr>
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</tbody>
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</table>
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<h3 id="appliesTo">Applies</h3>
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<div class="appliesto">
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<div>
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<table>
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<thead><th>Target</th><th>Versions</th></thead>
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<tbody>
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<tr><td><b>.NET Standard 2.0</b></td><td>main, v3.0, v2.2, v2.1</td></tr>
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<tr><td><b>.NET</b></td><td>main, v3.0</td></tr>
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<tr><td><b>.NET Windows</b></td><td>main, v3.0</td></tr>
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<tr><td><b>.NET Android</b></td><td>main, v3.0</td></tr>
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<tr><td><b>.NET iOS</b></td><td>main, v3.0</td></tr>
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<tr><td><b>.NET Framework</b></td><td>main, v3.0, v2.2, v2.1</td></tr>
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<tr><td><b>UWP</b></td><td>main, v3.0, v2.2, v2.1</td></tr>
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<tr><td><b>Xamarin.Android</b></td><td>v2.2, v2.1</td></tr>
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<tr><td><b>Xamarin.iOS</b></td><td>v2.2, v2.1</td></tr>
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</tbody>
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</table>
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<a href="https://github.com/dotMorten/NmeaParser/blob/main/src/NmeaParser/Nmea/Dtm.cs/#L35" class="contribution-link">View Source</a>
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