| SPECIFICATIONS: |
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| Receiver Type: |
L1, C/A code, with carrier phase smoothing |
| Channels: |
Two x 32 parallel tracking GPS, GLONASS, SBAS Update Rate: Standard 10Hz, Selectable up to 20 Hz (position and heading) |
| Horizontal Accuracy: |
< 0.3m 95% confidence (DGPS)* < 2.5m 95% confidence (autonomous, no SA)** |
| Heading Accuracy: |
< 0.25° rms |
| Pitch / Roll Accuracy: |
< 1° rms |
| Heave Accuracy: |
< 30 cm rms |
| Rate of Turn: |
90º / sec max |
| Start-up Time: |
< 60 sec typical |
| Heading Fix: |
< 10 sec |
| Satellite Reacquisition: |
< 1 sec |
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| BEACON RECEIVER SPECIFICATIONS (G2B) |
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| Channels: |
2-channel, parallel tracking |
| Frequency Range: |
283.5 to 325 kHz |
| Operating Modes: |
Automatic (signal strength or range) and manual |
| Compliance: |
IEC 61108-4 Beacon Standard |
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| COMMUNICATIONS |
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| Serial Ports: |
1 full duplex R2-232 and 1 full duplex RS-422 |
| Baud Rates: |
Selectable4800 – 115200 |
| Correction I/O Protocol: |
RTCM v2.3 (DGPS), RTCM SC-104 |
| Data I/O Protocol: |
NMEA 0183, NMEA 2000®, Proprietary ASII |
| Heading Warning I/O: |
Open relay system indicates invalid heading |
| NMEA Heading Messages: |
$GPHDT, $GPROT, $PSAT, $GPHDM, $GPHDG |
| Timing Output: |
1PPS CMOS, active low, 10KΩ,10pF load |
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| ENVIRONMENTAL |
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| Operating Temperature: |
-32ºC to +74ºC (-25ºF to + 165ºF) |
| Storage Temperature: |
-40ºC to +85ºC (-40ºF to + 185ºF) |
| Humidity: |
0 – 99% non-condensing |
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| POWER |
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| Input Voltage: |
10 to 36 VDC |
| Power Consumption: |
~ 3 W nominal |
| Current Consumption: |
~ 250 mA @ 12 VDC |
| Isolation: |
Power supply isolated from serial ports |
| Reverse Polarity Protect: |
Yes |
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| MECHANICAL |
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| Weight: |
G2: 2.2 kg (4.8 lb) / G2B: 2.7 kg (5.9 lb) |
| Power/Data Connection: |
18-pin female circular, IP67 sealed 15m cable |
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| AIDING DEVICES |
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| Gyro: |
Provides smooth heading, fast heading reacquision and reliable < 1º heading for periods up to 3 minutes when loss of GPS has occured (static conditions) |
| Tilt Sensor: |
Assists in fast start up of heading solutions |
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* Depends on multipath environment, number of satellites in view, satellite geometry, baseline length (for local services), and Ionospheric activity. |
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** Depends on multipath environment, number of satellites in view, and satellite geometry |
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