External GNSS – All CEESCOPE-USV™ systems can take in external GNSS from a third party receiver. Using an external GNSS could not be easier; simply connect the Bluetooth data output to the CEESCOPE-USV™ and transmit wireless NMEA0183 messages for incorporation into the survey data. Alternatively, a serial cable connection may be used.
Hemisphere Crescent Marine Beacon – Single frequency L1 GPS receiver for cost effective one-box surveying where differential corrections may be supplied by free SBAS systems such as WAAS or EGNOS. May also be used with MSK marine beacon corrections for a differential (DGPS) solution.
NovAtel OEMStar – Single frequency L1 GNSS receiver with GLONASS satellite tracking offering a more robust solution where there may be partial obstruction of the sky, such as under tree canopy.
NovAtel 628 – Multi frequency L1/L2/L5 GNSS receiver with L-Band corrections for up to 10 cm accuracy with a subscription corrections service. The L-band option is typically selected where free SBAS or beacon corrections are unavailable and it is not practical or necessary to set up a local RTK base station.
NovAtel 628 RTK – Multi frequency L1/L2/L5 GNSS receiver with RTK, allowing the CEESCOPE™ to connect to a local RTK base station and receive real time kinematic differential corrections for cm-level precision. Typically selected when water surface elevation (tide) is being measured using the satellite positioning system and not traditional (eg tide gauge) methods.
Trimble BD970 RTK – Multi frequency L1/L2/L5 GNSS receiver with RTK. For use when Trimble base station equipment is present. Will communicate with Trimble (or other manufacturer) base station broadcasting all formats of corrections including CMRx.
Satel Radio – Built-in UHF radio system and external antenna. Connect to a local base station broadcasting on UHF 450-470 MHz avoiding the need to connect any external radio modem on the survey boat or USV.