Specifications
| Parameter | Value |
|---|---|
| Dimensions | 149 x 118 x 47 mm (L x W x H) |
| Weight | Transceiver only variants 320g Transceiver with splitter variants 345g |
| Input voltage | DC 12 - 24V (9.6 - 31.2V maximum) |
| Average power consumption | B921/B951: 135mA / 1.65W at 12V B922/B952: 170mA / 2.05W at 12V B923/B953: 245mA / 2.95W at 12V B924/B954: 280mA / 3.35W at 12V |
| Peak current rating | B921/B922/B951/B952: 2A B923/B924/B953/B954: 2.5A |
| GPS Receiver (AIS integrated) | 72 channel IEC 61108-1 compliant L1 GPS band 1575.42MHz L1 GLONASS band 1597.1-1609.5MHz E1 Galileo band 1575.42MHz B1 BeiDou band 1561.098MHz |
| Electrical Interfaces | NMEA 0183 4,800 baud |
| NMEA 2000 LEN=1 | |
Wi-Fi 2.4GHz IEEE 802.11 a/b/g/n Output power +15dBm | |
| Bluetooth V4.0 / Output power +11dBm | |
| Connectors | VHF antenna connector (SO-239) |
| VHF radio connector (SO-239) - only applicable to splitter variants B923/B924/B953/B954 | |
| External GPS antenna connector (TNC) | |
| NMEA 2000 connector (Micro-C) | |
| Power/NMEA 0183/silent mode (12 way) | |
| Micro-USB connector | |
| VHF Transceiver | Transmitter x 1 |
| Receiver x 2 (Receivers time shared between AIS and DSC) | |
| Frequency: 156.025 to 162.025 MHz in 25 kHz steps | |
| Output Power CSTDMA | 33dBm ± 1.5 dB |
| Output Power SOTDMA | 37dBm ± 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) | |
| Receiver Performance | Sensitivity better than -107dBm at 20% PER |
| Co-channel 10dB | |
| Adjacent channel 70dB | |
| IMD 65dB | |
| Blocking 86dB | |
| Environmental | Weather and waterproof to IPx7 & IPx6 |
| Operating temperature: -25ºC to +55ºC | |
| Tested to IEC 60945 'Exposed' category | |
| LED indicators | Power, TX status, error, silent mode status |