SI-TEX MDA-5H Hi-Power 5W SOTDMA Class B AIS Transceiver w/Built-In Antenna Splitter (w/o Wi-Fi)
The SI-TEX MDA-5H provides 5-watt SOTDMA Class B AIS transmission and reception with a built-in antenna splitter. Its integrated splitter simplifies VHF and AIS installation, while the absence of Wi-Fi keeps the configuration focused on direct onboard AIS connectivity.
SI-TEX MDA-5H Hi-Power 5W SOTDMA AIS Specifications
| Communication Type | High-Power Class B+ AIS Transceiver |
| AIS Class/Protocol | SOTDMA (Class B+ High Speed) |
| Output Power | 5W (High) / 1W (Low) |
| Frequency Range | 156.025 – 162.025 MHz |
| Reporting Rate | Every 5 Seconds (Speed Dependent) |
| Operating Voltage | 12V / 24V DC Universal |
| Current Draw | < 2.5A Peak / 220mA Average |
| Interface/Networking | NMEA 2000, NMEA 0183, USB Interface |
| Internal GPS | Integrated 72-Channel GNSS Receiver |
| Display Type | Multi-Color LED Diagnostic System |
| Waterproof Rating | IPX7 Fully Waterproof Unit |
| Operating Temperature | -15°C to +55°C Marine Grade |
| Length (Overall) | 170 mm Chassis Depth |
| Width/Diameter | 128 mm Body Width |
| Weight | 0.65 kg (1.43 lbs) |
| Included Accessories | GNSS Antenna, Power/Interface Cable, VHF Patch Cable |
| Key Mechanical Feature | Built-In Zero-Loss Splitter for shared VHF antenna use |
Common Question of SI-TEX MDA-5H
What AIS technology does it use?
The SI-TEX MDA-5H is a 5-watt SOTDMA Class B AIS transceiver with a built-in antenna splitter. SOTDMA supports scheduled AIS transmissions, while Class B identifies its vessel category. Confirm GPS, VHF antenna, display, NMEA connections, splitter compatibility, and power requirements before SOTDMA AIS operation.
What does the antenna splitter provide?
The built-in antenna splitter allows compatible AIS and VHF equipment to share one marine antenna, subject to system specifications. Confirm frequency compatibility, connection requirements, grounding, and installation procedures before use. The title specifies no Wi-Fi, so wireless networking should not be assumed for built-in antenna sharing.
Does it include Wi-Fi?
No. The SI-TEX MDA-5H is specifically listed without Wi-Fi. AIS data must therefore use the supported wired connections and compatible navigation electronics. Verify NMEA, serial, display, power, and antenna interfaces before installation for reliable wired AIS integration aboard the vessel.
Related products
Reviews
There are no reviews yet.