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Technical Description
Physical
- Dimensions 215 x 150 x 45 mm (L x W x H)
- Weight 685g (M4-B unit only)
Power
- DC (9.6V - 15.6V)
- Average power consumption 4W
- Peak current rating 2A
GPS Receiver (AIS Internal)
- 16 channel 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/External switch
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
Channel Bandwidth
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Channel Step
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
- Less than -107dBm at 20% PER
- Co-channel 10dB
- Adjacent channel 70dB
- IMD 65dB
- Blocking 84dB
Environmental
- Water resistant to IPx7
- Operating temperature: -25ºC to +55ºC
- Tested to IEC 60945 ‘Protected’ category
Indicators
- Power
- TX timeout
- error
- status
Operator Controls
Single switch configurable to enable either silent mode or safety related message functions
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Configuration
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