Leica GS18 User Manual

6 Technical Data
6.1 GS18 Technical Data
6.1.1 Tracking Characteristics
Multi-frequency
☞
Depending on the satellite systems and signals congured, a max-
imum number of 555 channels is allocated.
System Signal
GPS L1, L2, L2C, L5
GLONASS L1, L2, L2C, L3
Galileo E1, E5a, E5b, AltBOC, E6
BeiDou B1I, B1C, B2I, B2A, B3I
QZSS
L1, L2C, L5, L6
*
NavIC
L5
*
SBAS
(WAAS, EGNOS, MSAS, GAGAN)
L1, L5*
Terrastar L-band
* QZSS L6 and SBAS L5 will be provided through future rmware
upgrade.
Support of NavIC is incorporated and will be provided through future
rmware upgrade.
Carrier phase and code measurements on L1, L2 and L5 (GPS) are fully inde-
pendent with AS on or off.
6.1.2 Accuracy
Accuracy is dependent upon various factors including the number of satellites
tracked, constellation geometry, observation time, ephemeris accuracy, iono-
spheric disturbance, multipath and resolved ambiguities.
The following accuracies, given as root mean square, are based on measure-
ments processed using Leica Innity and on real-time measurements.
The use of multiple GNSS systems can increase accuracy by up to 30% relative
to GPS only.
The baseline precision of a differential code solution for static and kinematic
surveys is 25 cm.
Type
Horizontal Vertical
Static and rapid static 3 mm + 0.5 ppm 5 mm + 0.5 ppm
Kinematic 8 mm + 1 ppm 15 mm + 1 ppm
Satellite reception
Instrument channels
Supported signals
☞
☞
Differential code
Differential phase in
post-processing
52 Technical Data

Leica GS18 Specifications

General

Type	GNSS RTK Rover
GNSS Signals	GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS
Tilt Compensation	Yes
Frequency Bands	L1, L2, L5
RTK Accuracy Horizontal	8 mm + 1 ppm
RTK Accuracy Vertical	15 mm + 1 ppm
Data Storage	Internal memory
Communication	Bluetooth
Power	Internal Li-Ion battery
Positioning Accuracy Static Vertical	5 mm + 0.5 ppm