User's Manual

Table Of Contents
9 Interfaces in detail DynaGATE 20-30 User manual Rev. 0-7
9.4 GNSS
The DynaGATE 20-30 provides the following GNSS features according to the product version.
Active or passive antenna supported. The antenna connector is placed on the rear side.
9.4.1 GNSS features for versions -10, -11, -20, -21
Feature Description
Receiver type 72-channel GNSS receiver with untethered dead reckoning
GPS/QZSS L1 C/A, GLONASS L10FBeiDou B1I, Galileo E1B/CSBAS L1 C/A: WAAS, EGNOS,
MSAS, GAGAN
Navigation update rate Up to 30 Hz
Position accuracy 2.5 m CEP
Acquisition
Cold starts: 26 s
Aided starts: 3 s
Reacquisition 1 s
Sensitivity
Tracking & Nav.: −160 dBm
Cold starts: 148 dBm
Hot starts: −157 dBm
Assistance AssistNow GNSS Online
AssistNow GNSS Offline (up to 35 days)
AssistNow Autonomous (up to 6 days)
OMA SUPL & 3GPP compliant
Oscillator Crystal
Sensor Onboard accelerometer and gyroscope
9.4.2 GNSS features for version -22
Feature Description
Receiver type 72-channel GNSS receiver with Integrated Real Time Kinematics (RTK)
GPS L1 C/A, GLONASS L1OF, BeiDou B1I
Navigation update rate
RTK: Up to 8Hz
1
Carrier phase data: up to 10 Hz
Position accuracy
2
Standalone: 2.5 m CEP
RTK: 0.025 m + 1 ppm CEP
3
Convergence time
2
RTK: < 60 s
Acquisition
Cold starts: 26 s
Aided starts: 2 s
Reacquisition 1 s
Sensitivity
Tracking & Nav.: −160 dBm
Cold starts: 148 dBm
Hot starts: −156 dBm
Reacquisition −158 dBm
Assistance AssistNow GNSS Online
OMA SUPL & 3GPP compliant
Oscillator TCXO
1 Limited to 5 Hz for multi-GNSS RTK and to 4 Hz in moving baseline configuration
2 Depends on atmospheric conditions, baseline length, GNSS antenna, multipath conditions, satellite visibility, and geometry
3 ppm limited to baselines up to 10 km
46 / 76