4 Specifications
32 EPOCH 35 GNSS System User Guide
4.1 Physical specifications
4.2 Positioning specifications
Feature Specification
Size (W x H x D) 19.0 cm x 7.0 cm x 20.0 cm (7.48 inch x 2.76 inch x 7.87 inch),
including connectors
Weight
Base 1.0 kg (2.2 lb)
Rover 1.1 kg (2.2 lb), including internal battery and UHF antenna
Average operating times
on internal battery
RTK / Static: 5.5 hours
External power input 10 V DC to 15 V DC power with over-voltage protection on
Port 1 and Port 2 (7-pin)
Operating temperature –20 °C through +65 °C (–4 °F to +149 °F)
Storage temperature –40 °C through +75 °C (–40 °F to +167 °F)
Humidity 95% condensing
Water/Dust IP64
Shock and vibration Tested and meets the following environmental standards:
Shock UNE EN 60068-2-27:1993
Vibration MIL-STD-810F Fig 514.5C-1
Positioning Specification
Static GNSS surveying
a
a
Accuracy and reliability may be subject to anomalies such as multipath, obstructions, satellite
geometry, and atmospheric conditions. Always follow recommended survey practices.
Horizontal ±5 mm +0.5 ppm RMS
Vertical ±5 mm +1 ppm RMS
Real-Time surveying
Horizontal ±10 mm + 1 ppm RMS
Vertical ±20 mm + 1 ppm RMS
Initialization Automatic OTF (on-the-fly) while moving
Initialization time Typically <30 seconds
Start-up <60 seconds from power on to positioning
<30 seconds with recent ephemeris
Code differential GPS positioning
a
WAAS/EGNOS
differential positioning accuracy
b
b
WAAS/EGNOS-capable GPS receiver dependant on field software application.
Typically <5 m 3DRMS
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