{"product_id":"si-tex-mda-5h-5w-sotdma-class-b-ais-transceiver-with-built-in-antenna-splitter","title":"SI-TEX MDA-5H 5W SOTDMA Class B+ AIS Transceiver with Built-In Antenna Splitter","description":"\u003ch1\u003eSI-TEX MDA-5H 5W SOTDMA Class B+ AIS Transceiver with Built-In Antenna Splitter\u003c\/h1\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003e\nThe SI-TEX MDA-5H is the world's most sophisticated fully certified 5-Watt SOTDMA Class B AIS transceiver, designed for mariners who demand maximum visibility on the water. Unlike standard Class B units, its SOTDMA Class A transmission priorities ensure your vessel is always seen - even in the most congested commercial harbors and busy shipping lanes. With a built-in zero-loss VHF antenna splitter, installation is streamlined and no second antenna is required.\n\u003c\/p\u003e\n\u003cp\u003e\nPacked with professional-grade features including a 72-channel GPS\/GLONASS receiver, galvanic isolated USB connection, and an automatic Voyage Data Recorder function, the MDA-5H delivers true commercial-class performance in a compact, waterproof package. Whether you're outfitting a recreational cruiser or a commercial vessel, the MDA-5H offers the connectivity, reliability, and certified performance to keep your crew safe and your vessel visible at the longest possible range.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-Watt SOTDMA Transmitter:\u003c\/strong\u003e Higher output power means your vessel is visible at greater ranges by other ships and via AIS tracking websites.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSOTDMA Class A Priorities:\u003c\/strong\u003e Your vessel always transmits and remains visible in heavily congested commercial harbors and ports where traditional Class B units lose network priority.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In Zero-Loss VHF Antenna Splitter:\u003c\/strong\u003e Integrated splitter eliminates the need for a second VHF antenna, simplifying installation significantly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e72-Channel GPS \u0026amp; GLONASS Receiver:\u003c\/strong\u003e Hi-resolution built-in satellite navigation receiver for precise positioning at all times.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Antenna Options:\u003c\/strong\u003e Standard package includes both an internal GPS antenna and an external GPS antenna, suited for commercial vessel installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNMEA-0183 \u0026amp; NMEA-2000 Connectivity:\u003c\/strong\u003e Intelligent connectivity to all bridge systems for seamless integration with existing marine electronics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGalvanic Isolated USB Connection:\u003c\/strong\u003e Protects your transponder and any connected PC from electrical faults and ground loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic VDR Function:\u003c\/strong\u003e Voyage Data Recorder automatically saves the previous 30 days of voyage data without any manual action required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Receivers:\u003c\/strong\u003e Decodes all DSC and AIS messages including MOB (Man Overboard) and SART distress signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIPX7 Waterproof Certified:\u003c\/strong\u003e Built tough to handle the marine environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertified \u0026amp; Approved:\u003c\/strong\u003e IEC-62287-2, FCC, USCG certified, and Industry Canada approved. Backed by a 2-year warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eShips free! Please email us at service@omahasportsandgames.com for a delivery ETA or to confirm shipping details.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMDA-5H SOTDMA Class B+ AIS Transceiver\u003c\/li\u003e\n\u003cli\u003eInternal GPS Antenna\u003c\/li\u003e\n\u003cli\u003eExternal GPS Antenna (for commercial vessel installations)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy You'll Love It\u003c\/h2\u003e\n\u003cp\u003e\nThe MDA-5H is trusted by commercial and serious recreational mariners who refuse to compromise on safety or visibility. Its 5-watt SOTDMA transmission ensures you're always seen - even in the most crowded waterways where standard Class B units fall short. The integrated antenna splitter, dual GPS\/GLONASS receiver, and automatic voyage data recording make it one of the most feature-complete AIS transceivers available at any price point. Built to meet IEC, FCC, USCG, and Industry Canada standards, it's a unit you can count on in real-world conditions. Backed by a 2-year warranty and engineered for years of dependable use, the MDA-5H is a smart, long-term investment in your vessel's safety system.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cdiv class=\"custom-product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eView Product Specs\u003c\/strong\u003e\u003c\/summary\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eTransmit Power\u003c\/th\u003e\n\u003ctd\u003e5 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAIS Class\u003c\/th\u003e\n\u003ctd\u003eClass B+ (SOTDMA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGPS\/GLONASS Receiver\u003c\/th\u003e\n\u003ctd\u003eHi-Resolution 72 Channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAntenna Splitter\u003c\/th\u003e\n\u003ctd\u003eBuilt-in, Zero Loss VHF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eData Ports\u003c\/th\u003e\n\u003ctd\u003eNMEA-0183, NMEA-2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUSB Connection\u003c\/th\u003e\n\u003ctd\u003eGalvanic Isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVDR Function\u003c\/th\u003e\n\u003ctd\u003eAutomatic - saves previous 30 days of voyage data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReceivers\u003c\/th\u003e\n\u003ctd\u003eDual - decodes DSC, AIS, MOB, SART\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWaterproof Rating\u003c\/th\u003e\n\u003ctd\u003eIPX7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWi-Fi\u003c\/th\u003e\n\u003ctd\u003eNot included (w\/o Wi-Fi model)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertifications\u003c\/th\u003e\n\u003ctd\u003eIEC-62287-2, FCC, USCG, Industry Canada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e2 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eManuals \u0026amp; Guides\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1724\/7681\/files\/1775154991MDA-5H_Class_B_AIS_Features___Specifications.pdf?v=1792535230\" target=\"_blank\" title=\"Product Specifications\"\u003eProduct Specifications\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1724\/7681\/files\/1743689340MDA-5_Class_B_SO_Transceiver___Splitter__Installation_and_Op.pdf?v=1792535234\" target=\"_blank\" title=\"Product Manual\"\u003eProduct Manual\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cdiv class=\"custom-product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between SOTDMA Class B and standard Class B AIS?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eStandard Class B AIS uses CSTDMA (Carrier Sense Time Division Multiple Access), which means it must wait for a clear slot to transmit and can be bumped off in congested areas. SOTDMA (Self-Organized TDMA) - the same protocol used by Class A commercial units - reserves time slots in advance, guaranteeing your vessel always transmits and remains visible even in the busiest harbors and shipping lanes. The MDA-5H uses SOTDMA, giving it a significant safety advantage over conventional Class B devices.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need a separate VHF antenna for the AIS transceiver?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eNo. The MDA-5H features a built-in zero-loss VHF antenna splitter, which allows it to share your existing VHF antenna without any signal degradation. This simplifies installation considerably and saves the cost and complexity of running a second antenna cable.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does the Voyage Data Recorder (VDR) function do?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThe automatic VDR function continuously logs and saves your vessel's voyage data for the previous 30 days without any manual input required. This data can be invaluable for reviewing routes, speeds, and positions - or in the event of an incident investigation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this the Wi-Fi version of the MDA-5?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eNo. The MDA-5H (this model) does not include Wi-Fi. If you require wireless connectivity to a phone or tablet, SI-TEX offers a Wi-Fi enabled variant of the MDA-5 series. Please contact us if you need help selecting the right model.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the MDA-5H approved for use in the United States?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eYes. The MDA-5H is fully certified to IEC-62287-2 standards and holds FCC and USCG approvals, making it legal and approved for use on US-flagged vessels. It is also approved by Industry Canada for Canadian waters.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Si-Tex","offers":[{"title":"Default Title","offer_id":57019074969905,"sku":"MDA-5H","price":1145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1724\/7681\/files\/1722867685164694486116214502391539269145PIC_2.png?v=1792535239","url":"https:\/\/omahasportsandgames.com\/products\/si-tex-mda-5h-5w-sotdma-class-b-ais-transceiver-with-built-in-antenna-splitter","provider":"Omaha Sports \u0026 Games","version":"1.0","type":"link"}