Specifications
Receiver Specifications
GNSS Board Details
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1.2. GNSS Board Details
Table 2. GNSS Board Specifications
RTCM 2.x message type
3, 18, 19, 20, 21, 22; user selectable
RTCM 3.0 message type
1003, 1004, 1005, 1006, 1007, 1008, 1019, 1011, 1012, 1020; user
selectable
Ambiguity initialize
OTF (L1, L1/L2)
Baseline Length
Up to 50 km in the morning and evening; up to 32 km at noon.
Initialize time
5 seconds to 10 min depending on the base line length and multipath
conditions
Output interval for CMR/RTCM
1 Hz standard; 5, 10, 20 Hz optional
Elevation
0 to 90 degrees (independent of data logging)
Solution mode
Delay (synchronization); Extrapolation (not synchronized)
Process interval
1, 5, 10, 20, 50, 100 Hz optional
Latency
Delay mode – 20 msec to 20 sec (depends on latency which receives
corrections data from base receiver)
Extrapolation – 20 to 30 msec
Status
Fix, Float, DOP, Data Link Status, Modem Latency, Common
satellites, Percentage of fixing
Results
RTK coordinates, HRMS, VRMS, Covariance Matrix
Ambiguity fixing level
Selectable thresholds. Low: 95%; Medium: 99.5%; High: 99.9%
Survey Modes
Base or Rover
Static, Fast Static; Kinematic (Stop and Go); RTK (Real-time
Kinematic); DGPS (Differential GPS); SBAS DGPS
Survey Accuracy
Autonomous
< 2 m
Static, Fast Static
Horizontal: 0.7 cm + 0.5 ppm * base_line_length
Vertical: 1 cm + 0.5 ppm * base_line_length
Kinematic, RTK
Horizontal: 1.5 cm + 1 ppm * base_line_length
Vertical: 2 cm + 1.5 ppm * base_line_length
RTK (OTF)
Horizontal: 1.5 cm + 1 ppm * base_line_length
Vertical: 2 cm + 1.5 ppm * base_line_length
DGPS
< 0.25 m Post Processing,
< 0.5 m Real Time
Cold Start//Warm Start/Reacquisition
< 35 sec/< 5 sec/< 1 sec
Tracking Signals
GISmore
GPS L1; Galileo E1; GLONASS L1 (G3 only)
Tracking Functions
Multipath reduction
Code and Carrier
PLL/DLL settings
Bandwidth, order, adjustable Smoothing interval Code and Carrier
WAAS/EGNOS
WAAS optional; EGNOS optional