Technical Data Zenith15/25 Pro | 23
6 Technical Data
6.1 Technical Data
6.1.1 Tracking Characteristics
Tracking Satellite reception
Signals tracked
6.1.2 Accuracy
Differential code The baseline precision of a differential code solution for static and kinematic surveys is 25 cm.
Static, Kinematic, Static
with long observations
Accuracy is dependent upon various factors including the number of satellites tracked, constellation geom-
etry, observation time, ephemeris accuracy, ionospheric disturbance, multipath and resolved ambiguities.
The accuracies, given as root mean square, are based on measurements processed using GeoMax Geo
Office and on real-time measurements.
6.1.3 GNSS antenna specifications
GNSS antenna specifica-
tions
6.1.4 Internal devices
Internal devices
Zenith15 Zenith25 Pro Zenith25 Pro4
Maximum 60 satellites tracked simultaneously, 120 channels
Zenith15 Zenith25 Pro Zenith25 Pro4
GPS L1, L2, L2C
GLONASS L1, L2
BeiDou - B1 B1, B2
Galileo - E1 E1, E5b
SBAS EGNOS, WAAS, MSAS, GAGAN
Initialisation: Initialisation time <5 s
Initialisation reliability >99.9%
Zenith15 Zenith25 Pro/4
Static Horizontal: 5 mm + 0.5 ppm Horizontal: 3 mm + 0.5 ppm
Vertical: 10 mm + 0.5 ppm Vertical: 5 mm + 0.5 ppm
Kinematic Horizontal: 10 mm + 1 ppm Horizontal: 8 mm + 1 ppm
Vertical: 20 mm + 1 ppm Vertical: 15 mm + 1 ppm
Static with long
observations
Horizontal: 3 mm + 0.1 ppm
Vertical: 3.5 mm + 0.4 ppm
Phase centre error: ± 2 mm
LNA gain: Typically 33 dBi
Noise figure: Typically ≤ 3dBi
GSM/UMTS module: Cinterion PHS8
Quad-Band GSM 850/900/1800/1900 MHz
Penta-Band UMTS 800/850/900/1900/2100 MHz
UHF radio module: Microhard nL400, transceiver
Transmission power 0.5 and 1.0 W
Frequency range 406 to 480 MHz
Bluetooth: Class 2
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