Spectra Precision EPOCH 50, Руководство пользователя

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4 Specifications
3 2 EPOCH 50 GNSS System User Guide
4.1
Physical specifications
4.2
Positioning specifications
Feature Specification
Size (W x H x D) 19.0 cm x 10.7 cm x 20.0 cm (7.48 inch x 4.21 inch x 7.87 inch),
including connectors
Weight 1.34 kg (2.95 lb), including internal battery and UHF antenna
Average operating times
on internal battery RTK / Static: 4.0 hours (radio in receive mode)
External power input 10 V DC to 20 V DC power with over-voltage protection on
Port 1 and Port 2 (7-pin)
Operating temperature –20 °C to +60 °C (–4 °F to +140 °F)
–20 °C to +55 °C (–4 °F to +131 °F), with internal radio
transmitting
Storage temperature –40 °C to +75 °C (–40 °F to +167 °F)
Humidity SAE J1455
Dust / Water Sealed against dust and water
Vibration MIL-STD-810F Fig 514.5C-1
Positioning Specification
Code differential GNSS positioning
1
1
Accuracy and reliability may be subject to anomalies such as multipath, obstructions, satellite
geometry, and atmospheric conditions. Always follow recommended survey practices.
Horizontal 0 25 m + 1 ppm RMS
Vertical 0 50 m + 1 ppm RMS
SBAS differential positioning accuracy
2
2
SBAS-capable GPS receiver dependant on field software application.
Typically <5 m 3DRMS
Static and FastStatic GNSS surveying
1
Horizontal 3 mm + 0.1 ppm RMS
Vertical 3.5 mm + 0.4 ppm RMS
Kinematic surveying
1
Horizontal 10 mm + 1 ppm RMS
Vertical 20 mm + 1 ppm RMS
Initialization time
3
3
May be affected by atmospheric conditions, signal multimath, obstruction, and satellite geometry.
Typically <10 seconds
Initialization reliability
4
4
May be affected by atmospheric conditions, signal multimath, obstruction, and satellite geometry.
Initialization reliability is continuously monitored to ensure the highest quality.
Typically >99 9%