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<title>Class Gbs </title>
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<div class="col-md-10">
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<article class="content wrap" id="_content" data-uid="NmeaParser.Messages.Gbs">
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<h1 id="NmeaParser_Messages_Gbs" data-uid="NmeaParser.Messages.Gbs" class="text-break">Class Gbs</h1>
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<div class="markdown level0 summary"><p>GNSS Satellite Fault Detection</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">Gbs</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><a class="xref" href="NmeaParser.Messages.ITimestampedMessage.html">ITimestampedMessage</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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<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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<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_Gbs_syntax">Syntax</h5>
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<div class="codewrapper">
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<pre><code class="lang-csharp hljs">[NmeaMessageType("--GBS")]
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public class Gbs : NmeaMessage, IEquatable<NmeaMessage>, ITimestampedMessage</code></pre>
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</div>
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<h5 id="NmeaParser_Messages_Gbs_remarks"><strong>Remarks</strong></h5>
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<div class="markdown level0 remarks"><p>
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This sentence is used to support Receiver Autonomous Integrity Monitoring (RAIM). Given that a GNSS
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receiver is tracking enough satellites to perform integrity checks of the positioning quality of the position
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solution a sentence is needed to report the output of this process to other systems to advise the system
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user.With the RAIM in the GNSS receiver, the receiver can isolate faults to individual satellites and not
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use them in its position and velocity calculations.Also, the GNSS receiver can still track the satellite and
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easily judge when it is back within tolerance.This sentence shall be used for reporting this RAIM
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information. To perform this integrity function, the GNSS receiver must have at least two observables in
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addition to the minimum required for navigation.Normally these observables take the form of additional
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redundant satellites.
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</p>
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<p>
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If only GPS, GLONASS, Galileo, BDS, QZSS, NavIC (IRNSS) is used for the reported position solution
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the talker ID is GP, GL, GA, GB, GQ, GI respectively and the errors pertain to the individual system.If
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satellites from multiple systems are used to obtain the reported position solution the talker ID is GN and
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the errors pertain to the combined solution.
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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_Gbs__ctor_System_String_System_String___" data-uid="NmeaParser.Messages.Gbs.#ctor(System.String,System.String[])">
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<a class="xref" href="NmeaParser.Messages.Gbs.-ctor.html#NmeaParser_Messages_Gbs__ctor_System_String_System_String___">Gbs(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.Gbs.html">Gbs</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_Gbs_AltitudeError" data-uid="NmeaParser.Messages.Gbs.AltitudeError">
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<a class="xref" href="NmeaParser.Messages.Gbs.AltitudeError.html#NmeaParser_Messages_Gbs_AltitudeError">AltitudeError</a>
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</td>
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<td class="markdown level1 summary"><p>Expected Error in altitude</p>
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</td>
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</tr>
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<tr>
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<td id="NmeaParser_Messages_Gbs_BiasEstimate" data-uid="NmeaParser.Messages.Gbs.BiasEstimate">
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<a class="xref" href="NmeaParser.Messages.Gbs.BiasEstimate.html#NmeaParser_Messages_Gbs_BiasEstimate">BiasEstimate</a>
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</td>
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<td class="markdown level1 summary"><p>Estimate of bias in meters on most likely failed satellite</p>
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</td>
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</tr>
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<tr>
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<td id="NmeaParser_Messages_Gbs_FixTime" data-uid="NmeaParser.Messages.Gbs.FixTime">
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<a class="xref" href="NmeaParser.Messages.Gbs.FixTime.html#NmeaParser_Messages_Gbs_FixTime">FixTime</a>
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</td>
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<td class="markdown level1 summary"><p>UTC time of the GGA or GNS fix associated with this sentence.</p>
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</td>
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</tr>
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<tr>
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<td id="NmeaParser_Messages_Gbs_LatitudeError" data-uid="NmeaParser.Messages.Gbs.LatitudeError">
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<a class="xref" href="NmeaParser.Messages.Gbs.LatitudeError.html#NmeaParser_Messages_Gbs_LatitudeError">LatitudeError</a>
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</td>
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<td class="markdown level1 summary"><p>Expected Error in latitude</p>
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</td>
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</tr>
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<tr>
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<td id="NmeaParser_Messages_Gbs_LongitudeError" data-uid="NmeaParser.Messages.Gbs.LongitudeError">
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<a class="xref" href="NmeaParser.Messages.Gbs.LongitudeError.html#NmeaParser_Messages_Gbs_LongitudeError">LongitudeError</a>
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</td>
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<td class="markdown level1 summary"><p>Expected Error in longitude</p>
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</td>
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</tr>
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<tr>
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<td id="NmeaParser_Messages_Gbs_MissedDetectionProbability" data-uid="NmeaParser.Messages.Gbs.MissedDetectionProbability">
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<a class="xref" href="NmeaParser.Messages.Gbs.MissedDetectionProbability.html#NmeaParser_Messages_Gbs_MissedDetectionProbability">MissedDetectionProbability</a>
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</td>
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<td class="markdown level1 summary"><p>Probability of missed detection for most likely failed satellite</p>
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</td>
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</tr>
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<tr>
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<td id="NmeaParser_Messages_Gbs_SatelliteId" data-uid="NmeaParser.Messages.Gbs.SatelliteId">
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<a class="xref" href="NmeaParser.Messages.Gbs.SatelliteId.html#NmeaParser_Messages_Gbs_SatelliteId">SatelliteId</a>
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</td>
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<td class="markdown level1 summary"><p>ID number of most likely failed satellite</p>
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</td>
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</tr>
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<tr>
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<td id="NmeaParser_Messages_Gbs_StandardDeviation" data-uid="NmeaParser.Messages.Gbs.StandardDeviation">
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<a class="xref" href="NmeaParser.Messages.Gbs.StandardDeviation.html#NmeaParser_Messages_Gbs_StandardDeviation">StandardDeviation</a>
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</td>
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<td class="markdown level1 summary"><p>Standard deviation of bias estimate</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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</div>
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</div>
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<a href="https://github.com/dotMorten/NmeaParser/blob/main/src/NmeaParser/Nmea/Gbs.cs/#L42" class="contribution-link">View Source</a>
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