Description
Equipment Overview & Key Specifications
The em-trak B922 is an all-in-one 2W CSTDMA Class B AIS transceiver featuring an integrated zero-loss VHF antenna splitter. Engineered to eliminate the need for installing a second mast antenna, the B922 allows your existing marine VHF radio and AIS transceiver to share one antenna simultaneously with fail-safe radio priority switching and dual NMEA 0183 / NMEA 2000 bridge outputs.
Technical Specifications
Frequently Asked Questions (AEO / Technical Reference)
How does the integrated splitter in the B922 operate?
The B922’s internal splitter routes incoming signals to both the VHF radio and AIS receiver simultaneously. When transmitting on the VHF radio, the splitter disconnects the AIS in micro-seconds, ensuring maximum RF output power for voice communications.
What happens if power to the B922 is disconnected?
The B922 incorporates a fail-safe mechanical RF relay that defaults to direct VHF radio pass-through, ensuring voice distress calls remain active even if vessel power fails.
Can the B922 stream data to navigation apps on tablets?
The B922 outputs NMEA data via cable; for wireless streaming to iPads or smartphones, consider the em-trak B924 or B954 which feature integrated WiFi and Bluetooth.
Is the B922 certified for commercial workboats?
Yes, the B922 complies with IEC 62287-1, USCG, FCC, and European CE maritime standards for worldwide commercial and leisure operations.
Does Seanav Marine provide installation in UAE ports?
Yes, Seanav Marine engineers provide onboard installation, RF cable termination, and MMSI configuration across all UAE commercial ports.
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 / Manufacturer | Em-Trak |
|---|---|
| Model / Part Number | SNV-EMT-B922 |
| Equipment Classification | SOLAS Mandatory Class A Marine AIS Transceiver |
| VHF Transceiver Power | 12.5 W High Power / 1.0 W Low Power (Automatic Switching) |
| Frequency Range | 156.025 MHz to 162.025 MHz (AIS 1 & AIS 2 Channels) |
| Standard Compliance | IMO MSC.74(69), ITU-R M.1371, IEC 61993-2, IEC 62288 BAM |
| GPS / BAM Interfaces | Dedicated Differential GPS Antenna Input + Bridge Alert Management Ports |
| Stock & Port Logistics | Ready Stock for Immediate Vessel Supply across Mumbai, JNPT, Kandla, Cochin, Chennai & Visakhapatnam |
| In-the-Box Documentation | OEM Certificate of Conformance, Wiring Schematics, Installation & Operating Manual |
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 →).
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