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Si-Tex
SI-TEX MDA-6 5W SOTDMA Class B/SO AIS Transceiver with Bluetooth & Wi-Fi
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$1,045.00 USD
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Description
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SI-TEX MDA-6 5W SOTDMA Class B/SO AIS Transceiver with Bluetooth & Wi-Fi
Description
The SI-TEX MDA-6 is a high-performance Class B/SO AIS transceiver built for mariners who demand reliable, long-range vessel tracking and situational awareness. Utilizing 5W SOTDMA technology, it delivers high-priority AIS transmissions with greater range and reliability than standard Class B devices. The MDA-6 integrates seamlessly with onboard electronics through NMEA 0183, NMEA 2000, and USB connectivity, making it a versatile fit for a wide range of vessel setups.
Designed with modern connectivity in mind, the MDA-6 features integrated high-power Wi-Fi and Bluetooth, enabling easy programming via a dedicated app and wireless access from tablets and laptops. Its built-in VDR capability, IP67 waterproof rating, and compact form factor make it equally at home on coastal cruisers, offshore passages, and commercial vessels. Certified by IEC 62287-2, FCC, and USCG, this transceiver meets the standards required for serious offshore use.
Key Features
- 5W SOTDMA Class B/SO Transmission: Delivers long-range, high-priority AIS transmissions for improved vessel detection and traffic management.
- Integrated High-Power Wi-Fi: Connects wirelessly to tablets and laptops for real-time AIS data access and monitoring.
- Bluetooth Programming App: Fast setup and troubleshooting via a dedicated Bluetooth app - no wired connection required.
- AIS Control App with WAZE-Style Hazard Reporting: Go beyond standard AIS with crowd-sourced hazard alerts for smarter, safer navigation.
- Built-In VDR Capability: Voyage data recording built into the unit for compliance and post-incident review.
- NMEA 0183, NMEA 2000 & USB Connectivity: Works with virtually any chartplotter or navigation system via industry-standard interfaces, plus an NK2 isolated USB interface.
- External GPS Antenna Included: High-quality external GPS antenna provided in the box for accurate positioning right out of the gate.
- IP67 Waterproof, Dustproof & Vibration Proof: Rugged construction stands up to the harshest marine environments.
- Low Power Consumption: Efficient design minimizes draw on your vessel's electrical system.
- IEC 62287-2, FCC & USCG Certified: Meets all required certifications for use in U.S. and international waters.
- Compact, Lightweight Design: Easy to install in tight spaces without sacrificing performance.
Shipping
Ships free! Please email us at service@omahasportsandgames.com for a delivery ETA or to confirm shipping details.
What's Included
- SI-TEX MDA-6 AIS Transceiver
- External GPS antenna
Why You'll Love It
The SI-TEX MDA-6 brings professional-grade AIS performance to vessels of all sizes, giving captains and crew the confidence of knowing they're seen and that they can see others clearly. SOTDMA technology means your transmissions are prioritized over standard Class B units - a meaningful edge in busy waterways or crowded anchorages. The wireless programming and monitoring features make setup straightforward and diagnostics simple, saving time on the water and at the dock. Built to IP67 standards and certified by the FCC and USCG, this is a transceiver you can trust in demanding conditions year after year. Whether you're a recreational offshore sailor, a commercial operator, or a vessel owner looking to upgrade from a basic AIS unit, the MDA-6 delivers the reliability, connectivity, and modern features that serious mariners expect.
Product Specifications
View Product Specs
| AIS Class | Class B/SO (SOTDMA) |
|---|---|
| Transmit Power | 5W |
| Connectivity | NMEA 0183, NMEA 2000, USB (NK2 Isolated) |
| Wireless | Integrated Wi-Fi & Bluetooth |
| Waterproof Rating | IP67 |
| VDR | Built-in |
| GPS Antenna | External (included) |
| Certifications | IEC 62287-2, FCC, USCG |
Manuals & Guides
FAQ
What is the difference between Class B/SO (SOTDMA) and standard Class B AIS?
Standard Class B AIS uses CSTDMA (Carrier Sense Time Division Multiple Access), which yields transmission time opportunistically and can be bumped by other traffic. Class B/SO uses SOTDMA (Self-Organized TDMA), the same protocol used by Class A commercial vessels. This means the MDA-6 reserves its transmission slots in advance, resulting in higher transmission priority, longer range, and more consistent performance - especially in congested waterways.
Does the MDA-6 require a VHF antenna?
Yes, an AIS transceiver like the MDA-6 requires a VHF antenna to transmit and receive AIS signals. A dedicated AIS VHF antenna or a splitter connected to your existing VHF antenna is recommended. The unit includes an external GPS antenna, but the VHF antenna is sold separately.
Can I use the MDA-6 with my existing chartplotter?
Yes. The MDA-6 supports NMEA 0183 and NMEA 2000 connectivity, which are the two most common standards used by chartplotters from Garmin, Raymarine, Furuno, Navionics, and others. Simply connect via the appropriate interface for your system and AIS targets will appear on your plotter's chart display.
What does the built-in VDR capability do?
VDR stands for Voyage Data Recorder. The built-in VDR in the MDA-6 logs AIS and voyage data, which can be useful for post-incident review, compliance documentation, or simply reviewing your track and traffic history after a passage.
Is the MDA-6 approved for use in U.S. waters?
Yes. The SI-TEX MDA-6 is certified by the FCC and USCG, making it fully approved for use in U.S. waters. It also holds IEC 62287-2 certification for international use.
Thank you for trusting us with your order! This product is shipped directly from the manufacturing warehouse to get to customers all over the U.S. as soon as possible!
While many of our products are prepared and shipped out within 48 hours, some of our items are built to order or require custom pieces that could take 2-6 weeks to prepare before shipping! Please contact us at 888-884-2234 for a delivery ETA if you have a strict timeline.
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Omaha Sports & Games Team
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at service@omahasportsandgames.com.
If your return request is accepted, it will be up to you as the buyer to return the item in its original packaging, unworn and unused. You as the buyer will be responsible for paying the return shipping. We may be able to assist you in scheduling a pickup for return but the payment will still be your responsibility. You can always contact us for any return question at service@omahasportsandgames.com.
All products are subject to a minimum 15% restocking fee based on the quality of the returned product and packaging.
Items opened, tested, used, or any other non-new condition may be eligible for return based on the manufacturer's return policy.
Shipping Damages and Issues
You must inspect your order upon reception and refuse delivery if you see damage. DO NOT sign for delivery if there is apparent damage to the product. If you sign for the delivery and later claim shipping damage, there is very little we can do to help.
If your order does not require signing at delivery and is instead just dropped off at doorstep with damage, contact us immediately with photos of the damaged boxes.
If your item(s) is defective, damaged or if you receive the wrong item, contact us immediately so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, such as custom products, special orders or personalized items. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items, gift cards, or multiple product bundle discounts.
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