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Radio Technical Commission for Maritime Services
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<h2 id="special-committees">Special committees</h2> <p>RTCM Special Committees are formed to provide in-depth areas of concern to the RTCM membership, these special committees normally produce documents in the form of standards. </p><p>Current special committees are </p> <ul><li>Special Committee (SC) 101 on Digital Selective Calling (DSC)</li> <li>Joint Special Committee (SC) 101/110 on GPS Equipped Hand Held VHF Radios</li> <li><a href="/facts/RTCM_SC-104/dqS52L86">Special Committee (SC) 104</a> on Differential Global Navigation Satellite Systems (DGNSS). Provides standards that are often used in <a href="/facts/Differential_GPS/qBGqMBqo">Differential GPS</a> and <a href="/facts/Real_Time_Kinematic/MrlAvKU4">Real Time Kinematic</a> operations.</li> <li>Special Committee (SC) 109 on Electronic Charts</li> <li>Special Committee (SC) 110 on Emergency Beacons (EPIRBs and PLBs)</li> <li>Special Committee (SC) 117 on Maritime VHF Interference</li> <li>Special Committee (SC) 119 on Maritime Survivor Locator Devices</li> <li>Special Committee (SC) 112 on Ship Radar</li> <li>Special Committee (SC) 117 on Maritime VHF Interference</li> <li>Special Committee (SC) 119 on Maritime Survivor Locating Devices</li> <li>Special Committee (SC) 121 on Automatic Identification Systems (AIS) and digital Messaging</li> <li>Special Committee (SC) 123 on VHF-FM Digital Small Message Services</li> <li>Special Committee (SC) 127 on Enhanced Loran (eLoran)</li> <li>Special Committee (SC) 128 on <a href="/facts/Satellite_Emergency_Notification_Device/FynK6tck">Satellite Emergency Notification Device</a> (SEND)</li> <li>Special Committee (SC) 134 on Integrity for High-Accuracy GNSS Applications</li> <li>Special Committee (SC) 135 on Radio Layers for Real-Time DGNSS Applications</li> <li>Special Committee (SC) 136 on Beacon Type Approvals</li> <li>Special Committee (SC) 137 on Electromagnetic Compatibility Requirements for LED Devices and other Unintentional Emitters Located Near Shipboard Antennas</li> <li>Special Committee (SC) 138 on Ranging Mode (R-Mode) Application for VHF Data Exchange System (VDES)</li></ul> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/National_Marine_Electronics_Association/yxtj4HBB">National Marine Electronics Association</a></li> <li><a href="/facts/Networked_Transport_of_RTCM_via_Internet_Protocol/5QQxL1fj">Networked Transport of RTCM via Internet Protocol</a> (NTRIP)</li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="http://www.rtcm.org/">The Radio Technical Commission for Maritime Services</a></li></ul>