SRT Marine
Instruction Manual
SRT-MTB
©
Class B Marine AIS
Product Specification
Parameter Value
Dimensions 190 x 135 x 83 mm (L x W x H)
Weight 1450g
Power DC (10.8 - 15.6V)
Average power consumption 4W
Peak current rating 2A
GPS Receiver (AIS Internal) IEC 61108-1 compliant
Electrical Interfaces RS232 38.4kBaud bi-directional
RS422 NMEA 38.4kBaud bi-directional
Connectors VHF antenna connector
GPS antenna connector
RS232/RS422/Power
VHF Transceiver Transmitter x 1
Receiver x 2 (One receiver time shared between AIS and DSC)
Frequency: 156.025 to 162.025 MHz in 25 kHz steps
Output Power 33dBm ± 1.5 dB
Channel Bandwidth 25kHz
Channel Step 25kHz
Modulation Modes 25kHz GMSK (AIS, TX and RX)
25kHz AFSK (DSC, RX only)
Bit rate 9600 b/s ± 50 ppm (GMSK)
1200 b/s ± 30 ppm (FSK)
RX Sensitivity Sensitivity - 107dBm 25kHz (Message Error Rate 20%)
Co-channel 10dB
Adjacent channel 70dB
IMD 65dB
Blocking 84dB
Environmental IEC 60945
Operating temperature: -25ºC to +55ºC
IEC 62287, Section 5, Cat (c) exposed to the weather
Indicators Power, TX timeout, status, pre-set SRM sent.
Operator Controls Optional pre-set safety related message (SRM) transmit button
Standards
This product complies to all the necessary standards under the European R&TTE directive for Article 3.1(a), 3.1(b), 3.2 and
3.3(e). The following standards have been followed in pursuance of this:
•
IEC62287-1: 2006-03 Maritime navigation and radiocommunication equipment and systems – Class B shipborne
equipment of the automatic identification system (AIS) – Part 1: Carrier-sense time division multiple access (CSTDMA)
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