Em-trak B953 (with VHF Splitter) Class B 5W AIS Transceiver

The B953 is a high transmit power (5W SOTDMA) AIS Class B transceiver that is small, light-weight, yet delivers the very best AIS receive and transmit performance so you see more AIS information and targets at maximum range – all achieved with the least power consumption.

The B953 has an integrated VHF antenna splitter which enables the transceiver to share your existing VHF antenna without any loss of performance. With built in intelligent connectivity, integrated next generation GPS receiver & antenna and a unique FLEXI-FIT bracket system, safe and secure installation is simple.

Features :

• Certified AIS Class B – 5W SOTDMA
• Integrated high performance zero loss VHF antenna splitter
• Global Certification – USCG / FCC / Canada / Europe
• FLEXI-FIT™ bracket system for easy, convenient and secure installation
• Integrated high-performance GPS receiver and antenna (external antenna optional)
• Water, pressure spray and damp proof – IPx6 & IPx7
• Protected from vibration, shock and extreme temperatures
• Small and lightweight
• Ultra-low power consumption – best in class
• Guaranteed connectivity and interoperability with any app, chart plotter, smart phone, tablet or PC
• NMEA0183 & NMEA2000
• Automated health and performance monitoring
• Silent Mode (transmit-off) function
• Enhanced RF screening to protect against electromagnetic interference
• Built-in power surge protection

PHYSICAL & ENVIRONMENTAL SPECIFICATION

Size (H x W x D) 150 x 115 x 45mm

Weight 415g

Operating temperature -25°C to +55°C

Storage temperature -25°C to +70°C

Ingress protection IPx6 and IPx7

ELECTRICAL SPECIFICATION

Supply voltage 12V or 24V DC

Supply voltage range 9.6V - 31.2V DC

Average current (at 12V) 245mA

Peak current 2.5A

Average power consumption (at 12V) 2.9W

Galvanic isolation NMEA 0183 inputs only, NMEA 2000, VHF antenna port

CONNECTORS

VHF antenna SO-239

VHF radio SO-239

GNSS TNC

Power/NMEA 0183/silent mode 12 way circular multipole

NMEA 2000 5 way Micro-C connector

USB USB Micro-B

DATA INTERFACES

NMEA 0183 2 x bi-directional ports

NMEA 2000 NMEA 2000 Ed 3.101, LEN=1

USB PC virtual com port for NMEA 0183 data

STANDARDS COMPLIANCE

AIS standards IEC 62287-2 Ed. 2 ITU-R M.1371.5

Product safety standards EN60950-1 2006 +A11:2009 +A1:2010 +A12:2011 +A2:2013 EN62311:2008

Environmental standards IEC 60945 Ed. 4

Serial data interface standards IEC 61162-1 Ed 5.0 IEC 61162-2 Ed 1.0

NMEA 2000 NMEA 2000 Ed 3.101

GNSS performance standards IEC 61108-1 Ed 2.0 IEC 61108-02 Ed 1.0

GNSS

Systems supported GPS, GLONASS, BeiDou, Galileo (two of any combination, three including GPS, Galileo)

Channels 72

Internal/external antenna Internal or optional external antenna

Time to first fix from cold start 26s

VHF TRANSCEIVER

VDL access scheme SOTDMA

Operating frequency 156.025MHz - 162.025MHz

Channel bandwidth 25kHz

Receivers/transmitters 2 x receivers, 1 x transmitter

AIS receiver sensitivity (20% PER) -111dBm

AIS transmitter power 5W (+37dBm)

USER INTERFACE

Indicators Power, transmit timeout, error, silent mode