NAUTICAST B2 - Nauticast B2 Technical Details; Product Specification Sheet; Data Reporting Intervals

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B2 Product Manual 2_0
7 Technical Details
7.1 Product Specification
Product Number:
3001001
Model Number:
Nauticast B2
Size:
195x145x35mm
Power:
12 VDC (24VDC)
3W average power consumption, 12W peak
consumption
1A (0,5A) peak current
Electrical Interfaces:
USB, RS232: Baud rate 115200
RS422: Baud rate 38400
VHF receivers:
2 AIS receivers (shared between AIS and DSC)
1 DSC receiver (shared between AIS and DSC)
Frequency 156–162MHz
Sensitivity @ -107dBm < 20% PER
VHF transmitter:
1 Transmitter
Output PWR 2W nominal
Frequency 161–162MHz
Internal GPS Receiver:
48 channel
1 Hz Update rate
5V DC Antenna feed
IEC61108-1 compliant
5 LEDs
PWR
Green
Connected to power supply (both USB and main!)
TX
Amber
Transmit Timeout
ERR
Amber
Rx noise level >77dBm
GPS antenna connection failure
GPS module failure
CH1 Tricolour
Green - Receive AIS data
Amber - Transmit AIS data
Red - DSC data mode
CH2 Tricolour
Green - Receive AIS data
Amber - Transmit AIS data
Red - DSC data mode
Environmental Class
“Protected” according to IEC 60945-Ed.4
Compass Safe Distance
0,55m
7.2 Information Reporting Intervals
The Nauticast Class-B AIS will transmit position reports (Message 18) in reporting intervals of

Every 30 seconds: if Speed over Ground (SOG) is > 2 kn;

Every 3 Minutes: if (Speed over Ground) SOG is < 2 kn;

These transmission intervals will be observed only if the device is connected to 12-24VDC
power supply; the device will not transmit when connected to USB power supply alone!
Transmissions by any class B device, and therefore also the B2, are subject to available time slots
in the broadcast area of the device; e.g. a command received by Message 23 or a large number of
class A devices can override the reporting interval!
Static Data sub messages 24A and 24B will be transmitted every 6 minutes in addition to and
independent of the position report.