Positioning Products and Services

We offer a broad range of receiver options and subscription services, including a choice of two redundant satellite clock and orbit correction data messages:
C-NavC¹® or C-NavC²®. Each is simultaneously broadcast across the globe by seven Inmarsat geosynchronous satellites.

Hardware

GNSS receiver, C-Nav3050
GNSS receiver, C-Nav7000
ring laser gyro, C-Mariner

C-Nav3050®

The C-Nav3050 global navigation satellite system (GNSS) receiver provides 66-channel tracking with multi-constellation support for GPS, GLONASS, C-Nav™, and SBAS (WAAS/EGNOS) signals, and accepts external RTCM input corrections via the internet.

A choice of data rates makes corrections via the CSS over-the-internet (OTI) delivery option a practical solution for reception at higher latitudes and in shadow zones.

C-Nav7000®

The C-Nav7000 is a rack-mounted, user-friendly, and configurable multi-correction–source GNSS receiver housed in a ruggedized 19-in (2U) rack-mount unit, providing you with several correction options, as well as access to visual indicators of correction options.

The receiver enables you to make the most of the many features we offer, including: correction source prioritization, all-in-view parallel tracking of 66 channels, built-in C-NavC¹ or C-NavC² L-band receivers, and a variety of QA/QC applications.

C-Mariner

The C-Mariner up-scalable ring laser gyro (RLG) system is based on technology developed at Honeywell Aerospace, with a proven track record of over 3.6 billion operational hours.

The C-Mariner system is optimized for integration with the C-Nav3050 receiver, and is upgradable to output heading, pitch, roll, heave, position, and velocity. It is a fully compliant inertial navigation system (INS).

C Nav1PPSI Converter Combiner

C-Nav1PPSI Converter/Combiner

The C-Nav1PPSI converter/combiner is a multi-function interface for GNSS receiver 1PPS signals. It has two opt-isolated 1PPS inputs, which are connected directly to the receiver's 1PPS outputs.

For high-integrity systems with dual GNSS receivers, the interface will "OR" the two TTL sources for output to peripherals that require a continuous 1PPS for time stamping. This output is maintained should either GNSS input fail.

Antennas

GNSS, standard antenna
GNSS antenna, C-Nav286
GNSS antenna, AD591

Standard Antennas

We offer both standard integrated and compact GNSS antennas, enabling excellent tracking performance. The compact antenna is listed in the NOAA GNSS Antenna Calibration tables as NAV-ANT3001R.

C-Nav286

The C-Nav286 is a GNSS antenna (AT1675-286) housed in a radome–thermoplastic enclosure. This antenna is listed in the NOAA GNSS Antenna Calibration tables as CNVC-NAV286

AD591

The AD591 antenna is a GNSS antenna (ALIAD591) housed in hard anodized, dichromate, and nickel-acetate–sealed aluminum with a 4-mm GRP pressure-molded radome. It has > 95 dB of out-of-band-rejection of the Inmarsat uplink.

GNSS base antenna
GNSS airborne antenna
GNSS signal converter, signal combiner, C-Nav combiner

Base Antenna

The integrated base GNSS antenna (PN: NAV82-001021-3001LF) tracks multiple signals. It is designed to reduce multipath error to provide better real-time kinematic (RTK) corrections to the rover network. It has excellent tracking performance and a stable phase center.

The antenna is listed in the NOAA GNSS Antenna Calibration tables as NCT-ANT3001B.

Airborne Antenna

The airborne antenna (NAV82-001022-3001LF) tracks multiple signals and is designed to reduce multipath error to provide better RTK corrections to the rover network. It has excellent tracking performance and a stable phase center.

The antenna is listed in the NOAA GNSS Antenna Calibration tables as NCT-ANT3001A.

C-Nav Combiner

The C-Nav Combiner enables the use of separate GNSS and L-band antennas. It is used in high-latitude operations where the low look angle of the separate L-band antenna enables reception of correction signals that is not possible with a standard integrated GNSS/L-band unit.

This combiner can be mounted on the mast or locally with the GNSS receiver.

Software

C-NaviGator III, GNSS control, touchscreen

C-NaviGator III

C-NaviGator III software is an intuitive touchscreen controller that provides real-time system accuracy and performance parameters for multiple GNSS receivers. The rugged and reliable wheelhouse-friendly display supports multiple NMEA inputs and outputs. It is fully compliant with the latest guidelines for GNSS positioning within the oil and gas industry per the International Association of Oil & Gas Producers and International Marine Contractors Association.

GNSS, position monitoring, C-Monitor

C-Monitor®

The C-Monitor application provides a graphical interface for supervising the operation and performance of one or more differential GNSS systems. It is compliant with the latest QA/QC guidelines for GNSS positioning within the oil and gas industry per the International Association of Oil & Gas Producers (IOGP) and the International Marine Contractors Association (IMCA).

The guidelines allow for pre-set user-defined alarm settings or limits, which can be set using the C-Monitor application.

DP system monitoring, situational awareness, C-Scape

C-Scape

C-Scape position monitoring and situational awareness software provides independent real-time monitoring of any dynamic positioning (DP) system. The simple, intuitive interface furnishes situational awareness to users during drillship, dive boat, remotely operated vehicle (ROV) vessel, and other operations by blending multiple sensors with map file overlays.

tidal data software, C-Tides

C-Tides®

C-Tides is a worldwide tidal data software package that combines the exceptional vertical accuracy of the C-Nav3050 receiver with advanced ocean surface models to deliver real-time elevations relative to the mean sea surface (MSS), vertical offshore reference frame (VORF), and EGM2008.

Two independent options are offered—an online package for real-time acquisition, and an offline package with post-processing and other advanced features. Accuracy is within accepted constituent limits to achieve IHO SP44 Order 1 or better[1].

[1] Subject to tidal regime limitation.

Correction Services

C-NavC1

C-NavC¹ is a worldwide subscription service providing 30-cm or better positioning accuracy.* GPS corrections are broadcast via Inmarsat geostationary satellites, providing highly reliable positioning coverage from 72° north to 72° south latitude.

C-NavC2

C-NavC² is a premier worldwide subscription service providing 5-cm or better positioning accuracy.* GNSS corrections are broadcast via Inmarsat geostationary satellites, providing highly accurate and reliable positioning coverage from 72° north to 72° south latitude. Reception at any latitude is achievable when incorporating the C-Nav CCS internet delivery capability.

C-NavC1 and C-NavC2

C-NavC¹ and C-NavC² correction service licenses are available for Net-1 and Net-2 satellites, to which all service users have unlimited access.

We also provide satellite coverage information in multiple formats.

*At one sigma within adequate Inmarsat and GNSS satellite visibility