What is CenterPoint RTX Marine coverage area?
The coverage area for CenterPoint RTX Marine delivered via L-band satellite extends to 100 Nautical Miles (200 kilometers) off all continental coasts (with the exception of the Western Coast of North America). Coverage has been expanded further in high interest areas including but not limited to the North Sea, Baltic Sea, Bay of Bengal, Gulf of Mexico. Please see the coverage map below for the full extent of coverage.
What are the specifications for CenterPoint RTX Marine?
The expected horizontal and vertical accuracy within 100 Nautical Miles of a given coastline is 2 cm and 5 cm (RMS) respectively. Outside of this range the accuracy may degrade. Corrections delivered via internet (NTRIP) are available outside of the 100 NM constraint, again the accuracy will vary due to satellite and internet quality as well, as distance increases from the Trimble reference stations.
|CenterPoint RTX Marine|
|Trimble RTX Fast regions|
|2 cm RMS|
|5 cm RMS|
|< 1 min|
|Trimble RTX Standard regions|
|2 cm RMS|
|5 cm RMS|
|< 3 mins|
Accuracy and Convergence Time - Table 1.0
*Trimble CenterPoint RTX Marine Fast Regions. Convergence performance will vary when working outside of 100 NM from shore. Trimble ProPoint TM receivers will have < 3 min convergence time outside of Fast Regions.
Note: We expect high levels of accuracy will be obtainable in many areas outside of the 100 Nautical Mile limit. Customers can receive a free trial to test the accuracy in their area of interest if they will operate outside the 100 Nautical Miles limit.
What about CenterPoint RTX Marine compatibility with hardware and software?
The following Trimble and Applanix products are compatible with CenterPoint RTX Marine correction service:
Trimble Integrated Receivers: R780
Trimble Modular Receivers: R750, MPS865, SPS855, BX992, Next Gen MPS566
Applanix Modular Receivers: POS MV Hardware (BD992, BD982)
Recommended Antennas for modular receiver: Rugged Zephyr 3, 540 AP, GA830
Trimble Marine Construction System for Positioning (TMC) PosPac MMS (Applanix)
What is initialization?
Initialization (also known as convergence) is the process of calculating your position to a desired accuracy level. When a receiver’s position reaches full accuracy, then it is considered to be fully initialized.
How long does initialization or convergence take?
Trimble RTX correction services have different initialization times based on the region as noted in the Table 1.0.
How long will I need to wait for initialization if I temporarily lose the stream?
The GNSS receiver will rapidly re-initialize to specified accuracies after the loss of GNSS signals and/or the Trimble RTX correction stream. The Trimble RTX correction stream may be lost for up to 200 seconds, while GNSS signals may be lost for up to four minutes before the receiver requires full re-initialization.
In which coordinate reference frame are Trimble RTX positions calculated and stored?
Trimble RTX coordinates are computed in ITRF2014 current epoch; these coordinates will be transformed to a fixed epoch dependent on the receiver and field software. Both Trimble Business Center and Trimble AccessTM will transform the coordinates of an Trimble GNSS receiver using Trimble RTX to most regional reference frames, such as NAD83(2011) static or not.
Which GNSS constellations do Trimble RTX corrections support?
Trimble RTX correction services support GPS, GLONASS, Galileo, QZSS and BeiDou.