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Si-Tex MDA-5H 5W SOTDMA Class B AIS Transceiver with Antenna Splitter

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-5H
09/12/2036 6:03 PM
Sale Price

$973.77

In Stock (7)

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Product Details

The Si-Tex MDA-5H is a high-performance 5-Watt SOTDMA Class B AIS transceiver designed for professional marine navigation. This fully certified unit offers superior transmission power and network priority, ensuring your vessel is visible at extended ranges even in congested commercial harbors and ports where traditional Class B AIS units may struggle to transmit.

Key Features:

  • 5-Watt transmitter output provides extended transmission range and visibility
  • SOTDMA technology delivers Class A transmission priorities for guaranteed visibility in high-traffic areas
  • Integrated zero-loss VHF antenna splitter eliminates the need for a second antenna
  • Built-in GPS and GLONASS satellite navigation receiver for precise positioning
  • Dual receivers decode all DSC and AIS messages, including MOB and SART alerts
  • Multiple connectivity options: NMEA-0183, NMEA-2000, and USB interfaces
  • Waterproof construction certified to IPX7 standards
  • Ultra-power efficient design with 220mA average current draw
  • IEC-62287-2, FCC, and USCG certified for commercial and recreational use

Technical Specifications:

  • Transmitter Power: 5 Watts
  • Frequency Range: 156.025-162.025 MHz
  • Input Voltage: 9.6-31.2 VDC
  • Operating Temperature: -25°C to +55°C
  • VHF Antenna Connector: SO-239 UHF
  • GPS Antenna Connector: TNC
  • Ingress Protection: IP67
  • Dimensions: 6.8" W × 5.0" H × 2.0" D
  • Weight: 0.8 lbs

Package Includes:

  • Commercial-grade external GPS antenna with coax cable
  • Mounting hardware
  • Power and data interface cable
  • VHF radio connection cable
  • Product information DVD with ProAis2 software
  • User manual and quick start guide

Important: FCC regulations require all AIS transceivers sold in the US to be programmed by a qualified technician. MMSI registration or FCC Ship Station License documentation is required for programming.

Backed by a 2-year manufacturer warranty, the MDA-5H delivers professional-grade AIS performance without Wi-Fi connectivity.

Good experience. Surprised on quick received brake sets.

Competitive Price for the item.

quick service

Got them quick

It&rsquo;s for my 2.0t Audi a5 2011 please make sure it&rsquo;s. Package nicely please and thank you

It was quick and easy to get what I needed

Easy process, thanks.

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