Standard Transmit Power AIS Class B B923

Get the most from your on-the-water experience with the B923, a 2W CSTDMA AIS Class B transceiver. Small and light-weight, it delivers em-trak's advanced AIS performance to ensure you see all information and targets, even at maximum range, and with the lowest power consumption in its class.
The B923 is equipped with an integrated VHF antenna splitter, which enables your transceiver to share your existing VHF antenna without any loss of performance. It offers quick and simple installation, with built-in intelligent connectivity, including integrated next-generation GPS receiver and antenna and em-trak's unique FLEXI-FIT® bracket system to get you up and running in no time at all. The dual NMEA2000 & 0183, coupled with serial ports and USB also make connecting to all your PC’s, display and navigation devices easy and simple.
Certified AIS Class B – 2W CSTDMA.
Integrated high performance zero loss VHF antenna splitter.
Global Certification – USCG / FCC / Canada / Europe.
SRT-AIS™ transceiver engine for superlative proven performance.
FLEXI-FIX™ bracket system for easy, convenient and secure installation.
Internal high-performance GPS receiver and antenna (external antenna optional).
Ruggedized – 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.
This transceiver must me configured prior to use download configuration software.
https://em-trak.com/installation/
PHYSICAL AND ENVIRONMENTAL SPECIFICATION :
Size  : 150 mm W x 115 mm H x 45 mm D.
Operating temperature : -25°C to +55°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) : 245 mA.
Peak current :  2A.
Average power consumption (at 12V) :  2.9 W.
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 :  NMEA2000 Ed 3.101, LEN=1.
STANDARDS COMPLIANCE : 
AIS standards :  IEC 62287-1 Ed. 3.  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
VHF TRANSCEIVER : 
VDL access scheme : CSTDMA.
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 :  2W (+33dBm).