Seanav Marine

em-trak B951 High-Power 5W SOTDMA Class B AIS Transceiver

$895.00

Equipment Overview & Key Specifications The em-trak B951 is an advanced 5W SOTDMA Class B AIS transceiver engineered for high-speed craft, commercial workboats, and ocean-going vessels. Utilizing Self-Organizing TDMA technology—the same protocol used by commercial Class A transceivers—the B951 reserves transmission time slots, broadcasts with 2.5x more power than standard Class B, and reports position updates up to every 5 seconds. Technical Specifications AIS Class & Technology Class B SOTDMA (Self-Organizing TDMA) RF Output Power 5.0 Watt (37 dBm) High-Power Reporting Frequency Up to every 5 seconds (dynamic speed-dependent reporting) Time Slot Priority Autonomous slot reservation preventing transmission blocking in…

SKU: SNV-EMT-B951
Category:
Brands:

Description

Equipment Overview & Key Specifications

The em-trak B951 is an advanced 5W SOTDMA Class B AIS transceiver engineered for high-speed craft, commercial workboats, and ocean-going vessels. Utilizing Self-Organizing TDMA technology—the same protocol used by commercial Class A transceivers—the B951 reserves transmission time slots, broadcasts with 2.5x more power than standard Class B, and reports position updates up to every 5 seconds.

Technical Specifications

AIS Class & Technology Class B SOTDMA (Self-Organizing TDMA)
RF Output Power 5.0 Watt (37 dBm) High-Power
Reporting Frequency Up to every 5 seconds (dynamic speed-dependent reporting)
Time Slot Priority Autonomous slot reservation preventing transmission blocking in congested ports
GNSS Engine Integrated multi-constellation GPS/GLONASS/Galileo receiver
Data Ports NMEA 2000, dual NMEA 0183 (bi-directional), Micro-USB
Environmental Rating IPx6 / IPx7 sealed chassis
Power Input 12V / 24V DC nominal

Frequently Asked Questions (AEO / Technical Reference)

What are the advantages of SOTDMA over traditional CSTDMA Class B?

SOTDMA broadcasts with 5W power instead of 2W, increases reporting rates from 30 seconds down to 5 seconds for fast vessels, and autonomously reserves transmission slots so your signal is never blocked in busy waterways like the Strait of Hormuz.

Does the B951 require a dedicated VHF antenna?

Yes, the B951 requires its own antenna, or can be paired with the em-trak S300 splitter or ordered as the B952 with built-in splitter.

Is the B951 approved for commercial charter and offshore workboats?

Yes, the B951 meets all international IEC 62287-2 standards for SOTDMA Class B transceivers and is approved by marine authorities globally.

Can the B951 silent mode (stealth mode) be activated?

Yes, silent mode can be toggled via software or a dedicated hardware switch to cease transmitting while maintaining continuous target reception.

How quickly can Seanav Marine deliver the B951 in Dubai and Fujairah?

Seanav Marine maintains local inventory at Dubai Maritime City with same-day dispatch and 24/7 port boarding attendance.

Certified Marine Survey & Installation Credentials

  • Authorized Distributor & Service Partner: Genuine em-trak Marine Electronics transceivers, splitters, and tracking systems with official factory warranty.
  • Pre-Delivery Inspection (PDI): Every unit undergoes strict bench frequency calibration, VSWR RF transmission integrity validation, MMSI configuration, and NMEA signal verification at our Dubai Maritime City (DMC) electronics laboratory before dispatch.
  • Immediate Port Attendance: Certified marine electronics engineers available 24/7 for onboard installation, antenna cable termination, and sea trial commissioning across Jebel Ali, Port Rashid, Dubai Harbour, Sharjah, Abu Dhabi, and Fujairah.
  • Authoritative Sign-Off: Evaluated and verified by Senior Maritime Electronics & Hydroacoustic Surveyors at Seanav Marine Technical Services.

Technical Specifications & Operational Standards

Review certified engineering parameters, electrical inputs, data protocols, and Class compliance standards for this unit:

OEM Brand / ManufacturerEm-Trak
Model / Part NumberSNV-EMT-B951
Equipment ClassificationSOLAS Mandatory Class A Marine AIS Transceiver
VHF Transceiver Power12.5 W High Power / 1.0 W Low Power (Automatic Switching)
Frequency Range156.025 MHz to 162.025 MHz (AIS 1 & AIS 2 Channels)
Standard ComplianceIMO MSC.74(69), ITU-R M.1371, IEC 61993-2, IEC 62288 BAM
GPS / BAM InterfacesDedicated Differential GPS Antenna Input + Bridge Alert Management Ports
Stock & Port LogisticsReady Stock for Immediate Vessel Supply across Mumbai, JNPT, Kandla, Cochin, Chennai & Visakhapatnam
In-the-Box DocumentationOEM Certificate of Conformance, Wiring Schematics, Installation & Operating Manual
B2B Marine Procurement & Same-Day Port Dispatch

Seanav Marine maintains bonded warehouse spare parts inventory and factory-trained technical riding squads across all major Indian ports. Immediate dispatch available to vessel agents, ship chandlers, and technical managers at Mumbai, JNPT (Nhava Sheva), Kandla, Mundra, Cochin, Chennai, and Visakhapatnam (view all 400+ ports →).

GMDSS & Radio Survey resources

Reviews

There are no reviews yet.

Be the first to review “em-trak B951 High-Power 5W SOTDMA Class B AIS Transceiver”

Your email address will not be published. Required fields are marked *