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Product Name:RIEGL VQ-820-G
Description:The RIEGL VQ-820-G topo-hydrographic airborne scanner was specifically designed for combined land and hydrographic airborne survey of coastlines and shallow waters. A visible green laser beam provides water penetration of 1 Secchi depth.
Year of introduction:2012
Year of last update:2014
Total weight [kg]:25.5
Power requirements:18-32VDC typ. 185W
Type of GNSS/INS positioning system:
Data storage facilities:
Mission planning software:IGI Plan; TrackAir; or similar
Postprocessing software:
Laser Pulse Characteristics 
Wavelength [nm]:
Standard pulse length [ns]:
Pulse length variation [ns]:
Beam divergence [mrad]:1
Type/class laser:3B
Eyesafe range [m]:
Measurement Characteristics  
Scanning method :single-shot time-of-flight measurement
Scan frequency [Hz]:200000
Min. pulse frequency [Hz]:
Max. pulse frequency [Hz]:520000
Max. field of view [deg]:60
Max. number of recorded echoes per pulse:practically unlimited
Full-wave form digitization:N
Pulse sampling frequency [GHz]:
Recording of intensity of return signal [bits]:
Multiple pulses in air:Y
Uncertainty and resolution 
Pitch and roll pointing precision [deg]:
Heading pointing precision [deg]:
Elevation precision at 1 km [m]:
Planimetric precision at 1km [cm]:
Across-track point spacing at 1km [m]:
Operation Characteristics 
Platform:Helicopter, Fixed-wing
Min. flying height [m]:
Max. flying height [m]:2500
Max. acquisition time [hr]:
Main applications: Mapping of Coastal Lines Mapping of Lakesides & River Banks Archaeology & Cultural Heritage
More information 
Distinguishable features : excellently suited for combined land and hydrographic airborne survey high-accuracy ranging based on echo digitization and online waveform processing with multiple target capability high spatial resolution due to laser repetition rate up to 520 kHz, high scanning speed up to 200 scanlines/second and a wide field of view up to 60° compact, rugged and light-weight modular configuration, compatible with standard airborne platforms optional waveform data output, data accessible with RiWAVELib seamless integration with other RIEGL ALS Systems and software packages is possible

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