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Si-Tex MDA-6 5W SOTDMA Class B AIS Transceiver with Bluetooth and Wi-Fi

Manufacturer

Si-Tex

<h3>About SI-TEX Marine Electronics</h3><p><strong>SI-TEX Marine Electronics</strong> has been a trusted name on the water since 1975. Founded in Riverhead, New York, the company has spent over five decades engineering rugged, reliable marine electronics for a wide range of vessels — from hardworking commercial boats and sportfishing yachts to inshore skiffs, power cruisers, and sailing vessels. For over 50 years, SI-TEX has delivered rugged, reliable marine electronics built to perform where it counts — on the water, earning the trust of commercial captains, sportfishermen, cruisers, and sailors around the world.</p><h3>A Full Spectrum of Marine Electronics</h3><p>SI-TEX&apos;s lineup covers the full spectrum of modern marine electronics — professional-grade radar, high-performance echosounders, advanced MFD chartplotter/sounder/radar systems, precision GPS navigation, heading sensors, autopilots, VHF communications, and more. Whether you&apos;re marking a waypoint offshore or threading a tight inlet channel in low visibility, SI-TEX builds tools that deliver dependable performance in demanding conditions.</p><p>At the heart of the SI-TEX lineup are their Fishfinders, GPS &amp; Chartplotters — multifunction display systems that combine high-resolution sonar with full-featured electronic charting. SI-TEX charting systems are ideal for boaters who want professional-grade fishfinding with full-featured electronic charting capabilities. Models like the NavPro series offer bright touchscreen displays, integrated sounders, and preloaded coastal charts — bringing serious capability to vessels of all sizes.</p><p>For mariners who rely on situational awareness at sea, SI-TEX&apos;s <a href="/11288-si-tex-simrad-radars-autopilots-200957">Radars &amp; Autopilots</a> provide peace of mind in any conditions. SI-TEX radars are offered in different series such as the T-900 and T-2000 — the T-900 boasting sophisticated Hyper-Digital Processing (HDP) technology for improved target discrimination and detection. The SI-TEX autopilots category includes electronic modules, autopilot pumps, and mechanical drives with a built-in rudder angle sensor.</p><p>Rounding out the ecosystem, SI-TEX&apos;s Navigation Parts &amp; Accessories, <a href="/201013-steering-parts-accessories-si-tex-11288">Steering Parts &amp; Accessories</a>, and <a href="/200363-electronics-parts-accessories-si-tex-11288">Electronics Parts &amp; Accessories</a> ensure that every component of your onboard navigation system works in harmony — from transducers and GPS antennas to heading sensors and mounting hardware.</p><h3>Built-In Reliability and Support</h3><p>Every SI-TEX product is backed by a 2-Year Warranty and supported by their Long Island, New York-based Service Department, delivering the kind of customer care only a seasoned, hands-on team can provide. Known for practical innovation, SI-TEX products are designed with intuitive interfaces and straightforward installation, and are built with rugged marine-grade construction to withstand harsh environments including saltwater, vibration, and weather exposure.</p><p>Whether you&apos;re outfitting a new vessel or upgrading an aging helm, SI-TEX offers a comprehensive selection of marine electronics that balances professional-grade performance with real-world value — a combination that has kept mariners loyal to the brand for generations.</p>

Part Number

MDA-6
09/12/2036 5:31 PM
Sale Price

$870.27

In Stock (8)

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Product Details

The Si-Tex MDA-6 is a high-performance Class B/SO AIS transceiver that delivers Class A-level transmit priority with 5-watt SOTDMA transmission power—more than twice the output of standard Class B AIS units. This enhanced power ensures your vessel is detected earlier and at greater distances, even in demanding or congested waterways where traditional Class B transceivers struggle to maintain network priority.

The MDA-6 broadcasts continuous dynamic data including Speed Over Ground (SOG), Course Over Ground (COG), heading, and hazard reports, providing surrounding vessels with a clearer, more accurate picture of your movements. SOTDMA (Self-Organized Time-Division Multiple Access) technology guarantees your vessel will always transmit and be seen in heavily congested commercial harbors and ports where standard Class B units don't have network priority.

Key Features:

  • 5-watt SOTDMA transmission with Class A-level priority for maximum visibility
  • Built-in Bluetooth and 802.11 b/g/n Wi-Fi for wireless connectivity to mobile devices
  • NMEA 0183 data port and NMEA 2000 (NK2) connectivity for seamless bridge system integration
  • Isolated USB interface for secure data transfer and programming
  • Integrated GPS and GLONASS satellite navigation receiver
  • IP67-rated waterproof housing protects against water, dust, and vibration
  • Compact modular design allows flexible installation on any vessel
  • Automatic VDR (Voyage Data Recorder) function saves voyage data
  • Built-in zero-loss VHF antenna splitter—no second antenna needed

The MDA-6 operates on 9.6-31.2 VDC with low 220mA average power consumption and functions reliably in temperatures from -25°C to +55°C. This fully certified AIS transceiver meets FCC, USCG, and Industry Canada requirements, making it ideal for recreational boaters and commercial operators who demand superior performance and reliability in challenging marine environments.

Transaction was easy, product shipped on time.

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