Accuracy is dependent upon various factors including the number of satellites tracked, constella-
tion geometry, observation time, ephemeris accuracy, ionospheric disturbance, multipath and
resolved ambiguities.
The accuracies, given as root mean square, are based on measurements processed using Geo-
Max Geo Office and on real-time measurements.
6.1.3 GNSS antenna specifications
Phase centre offset: ± 2 mm
LNA gain: Typically 28 dBi
6.1.4 Internal devices
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: Satel M3-TR4
Transmission power 0.5 and 1.0 W
Frequency range 403 to 473 MHz
Bluetooth: Class 2
6.1.5 Technical Data
Height: 131 mm (5.2")
Diameter: 161 mm (6.3")
Zenith35 Pro: 1.170 kg (without battery)
GNSS raw data can be recorded on a microSD card or internal memory. 1 GB capacity is typically
sufficient for about 7000 h dual frequency logging at a 15 s rate (average constellation).
•
Internal memory: 8 GB
•
microSD card: 4 GB
Internal battery: Li-Ion battery 10.8 V/3.4 Ah
External power input: 9 V to 18 V DC external power input with over-
voltage protection up to 28 V with ZDC221 cable
Power consumption: Typically 5.5 W (Wi-Fi on)/5.0 W (Wi-Fi off)
Equipment type Operating time ZBA601
Static: 8.5 h
Rover (radio; Satel M3-TR4, receive): 6 h
☞
GNSS antenna specifica-
tions
Internal devices
Dimensions
Weight
Recording
Power
Operating times
Technical Data 29
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