MSS Status

This page provides information relating to the currently-tracked OmniSTAR satellite or Trimble RTX correction service (with xFill technology).

Select MSS Corrections / Status.

 

RTX/xFill Configuration

SV name – Displays the name of the CenterPoint RTX/xFill satellite currently being tracked. "Auto" indicates that the satellite was selected based on geographical location.

Frequency [MHz] – Displays the frequency of the currently-tracked RTX/xFill satellite.

Bit Rate [Hz] – Display the rate at which the tracked RTX/xFill data is modulated to the carrier wave.

L-Band Beam Status

Mode

  • Off – Signal tracking is off.

  • Search – Initializing – Searching for OmniSTAR or RTX satellite, initializing.

  • Searching – Searching for OmniSTAR or RTX satellite, running.

  • Tracking – Initializing – Found OmniSTAR or RTX satellite, tracking initialization.

  • Full Tracking – Found OmniSTAR or RTX satellite, verifying data stream.

  • Full Tracking (Service) – Fully tracking OmniSTAR or RTX satellite and using the service indicated in the brackets.

SNR [dBHz] – Signal-to-Noise ratio (SNR) of OmniSTAR or RTX signal.

Link % – Displays the packet success rate. 100% indicates that no packets have been dropped.

Age of Correction [sec] – Displays the age of corrections in seconds.

OmniSTAR – Status

OmniSTAR Configuration

Provides the current OmniSTAR configuration settings.

External Data Mode – The mode setting set in the OmniSTAR Configuration page.

  • Don't Use – OmniSTAR off.

  • Auto – OmniSTAR auto tracking mode. When an HP or XP solution is available, output an HP or XP solution. When an HP or XP solution is not available but a VBS solution is available, output VBS solution.

  • HP+G2 – OmniSTAR HP and G2 mode.

  • G2 Only – OmniSTAR G2 mode.

  • HP+XP – OmniSTAR HP and XP mode.

  • HP Only – OmniSTAR HP only mode.

  • XP Only – OmniSTAR XP only mode.

  • VBS Only – OmniSTAR VBS only mode.

Internal Data Mode – The mode setting set in the OmniSTAR Configuration page.

  • Off – OmniSTAR off.

  • Auto – OmniSTAR auto tracking mode. When an HP or XP solution is available, output an HP or XP solution. When an HP or XP solution is not available, but a VBS solution is available, output VBS solution.

  • HP+G2 – OmniSTAR HP and G2 mode.

  • G2 Only – OmniSTAR G2 mode.

  • HP+XP – OmniSTAR HP and XP mode.

  • HP Only – OmniSTAR HP only mode.

  • XP Only – OmniSTAR XP only mode.

  • VBS Only – OmniSTAR VBS only mode.

  • RTX – RTX only mode.

Internal HP/XP Link ID – The configured HP/XP satellite ID used by the internal demodulator.

Internal HP/XP Link Name – The configured HP/XP satellite name used by the internal demodulator.

Internal VBS Link ID – The configured VBS satellite ID used by the internal demodulator.

Internal VBS Link Name – The configured VBS satellite name used by the internal demodulator.

Custom Frequency [MHz] – Manually entered OmniSTAR signal frequency stored for Custom mode.

Custom Bit Rate [Hz] – Manually entered OmniSTAR bit rate stored for Custom mode.

HP/XP Library Status

Provides information relating to the HP/XP Library (software supplied by OmniSTAR used to decode and process the OmniSTAR signal). This is also referred to as the OmniSTAR Engine.

Internal Library – The current status of the HP/XP Library. It can be Active or Not Active.

Engine – The mode used by the library. It can be HP, XP, G2, HP+G2, HP+XP, or Unknown.

Subscription Starts At/Expires At – OmniSTAR HP/XP subscription start and expiry dates. OmniSTAR services cannot be used without a valid OmniSTAR Subscription for the appropriate service.

Subscribed Engine – The OmniSTAR subscribed service currently in use by the OmniSTAR library.

Horizontal Precision [m] – A user-defined horizontal 3-sigma precision tolerance for the receiver, which is also used to determine when the OmniSTAR solution has converged. To edit this value, go to Receiver Configuration / Position.

Vertical Precision [m] – A user-defined vertical 3-sigma precision tolerance for the receiver, which is also used to determine when the OmniSTAR solution has converged. To edit this value, go to Receiver Configuration / Position.

Receiver Motion – The current motion setting for the receiver. It can be Kinematic (Moving) or Static. OmniSTAR initialization time can be reduced by correctly setting the receiver motion. To change this setting, go to Receiver Configuration / Advanced Settings.

OmniSTAR Motion – The motion of the GNSS antenna as determined by the OmniSTAR Library. It can be Static, Kinematic (Moving), or Unknown.

Seed with Last known Pos – If enabled, the Last Known position stored in the receiver when it was last turned off is used to seed the OmniSTAR Library. Seeding is a method of speeding up the initialization process by telling the OmniSTAR Library the location of the GNSS antenna. The Last Known Position function can be used when a vehicle-mounted system is parked overnight and is powered down and powered up without the vehicle having moved. (This function can only be configured by application software.)

Seed with Fixed RTK Pos – If enabled, and if the receiver is in Kinematic mode and computing valid Fixed RTK positions, the OmniSTAR Library is continually seeded with Fixed RTK positions. If in Static mode, the OmniSTAR library is seeded with the first computed Fixed RTK position only. This function enables the OmniSTAR HP/XP Library to continue to provide a precise positioning solution for short periods when an RTK solution is not available because of a radio drop-out or other interference. To enable this feature, go to OmniSTAR / Configuration.

Seed Quality –

  • Unknown – There is no seed available. The receiver does not have an SBAS or OmniSTAR VBS position.

  • Valid, source unknown – There is a valid seed available but the source is unknown.

  • Invalid, low confidence level – When using the last known position for seeding, if the last known position from the previous session has a low confidence level, it will be rejected. One of the causes of low confidence level is a high velocity associated with the position, suggesting that the receiver was moving when it was powered down.

  • Invalid, high variance, source unknown – When static seeding, either the horizontal or the vertical variance of the seed position is higher than the precision thresholds configured in the receiver.

  • Invalid, wrong location – When static seeding, a check is made to verify if the antenna is on the correct point by comparing the seed position with the current position. The ECEF XYZ of the current position must be within tolerance (5 m for SBAS, 3 m for OmniSTAR VBS) of the seed position; otherwise it is rejected.

  • Invalid, receiver does not have threshold – Retrieving the precision threshold from the receiver failed. There is no threshold value to compare to the seed's variance. (This should not happen, because the receiver has default threshold value.)

  • Invalid, no seed found – When Seed with Last Known Position is active, but the receiver does not have the seed position from the previous session.

  • Invalid, SBAS with high variance – The SBAS position is higher than the receiver's precision threshold values.

  • Invalid, VBS with high variance – The VBS position is higher than the receiver's precision threshold values.

  • Valid, SBAS – The SBAS position is a valid seed.

  • Valid, OmniSTAR VBS – The VBS position is a valid seed.

  • Valid, Fixed RTK – The Fixed RTK position is a valid seed.

  • Valid, Last Known Pos – The last known position is a valid seed.

  • Valid, User Defined – The user-defined known position is a valid seed.

Error – Shows if there are errors, else "No errors".

VBS Library status

Internal Library – The current status of the VBS Library. It can be Active or Not Active.

Subscription Starts At/Expires At – OmniSTAR VBS subscription start and expiry dates. OmniSTAR services cannot be used without a valid OmniSTAR subscription for the appropriate service. For more information on the current subscription and how to subscribe, go to OmniSTAR Subscription.

Error – Shows if there are errors, else "No errors".

Last Known Position

The WGS-84 geographical position and quality of the last known position stored in the receiver when it was last turned off.

Datum Offset

The WGS-84 geographical offset between two datums. It can be the difference between the site datum and another datum such as ITRF00 (used by OmniSTAR) as measured using the SCS Site Controller software, or it can be input manually on the OmniSTAR / Configuration page. This offset needs to be defined before OmniSTAR known point initializations, RTK seeding, or other functions involving different datums are carried out.

NMEA Encryption

This is not supported.

L-Band Beam Status

Provides information relating to the currently-tracked Trimble RTX / OmniSTAR signal (spot beam).

Signal Source

  • Demodulator – The receiver is using the RTX/OmniSTAR data from the internal demodulator.

  • External – The receiver is using the RTX/OmniSTAR data from an external source through a serial, Ethernet, or NTRIP port.

  • Off – RTX/OmniSTAR data is not being used.

Tracking Mode

  • Off – OmniSTAR signal tracking is off.

  • Search – Initializing – Searching for RTX/OmniSTAR satellite, initializing.

  • Searching – Searching for RTX/OmniSTAR satellite, running.

  • Track – Initializing – Found RTX/OmniSTAR satellite, tracking initialization.

  • Full Tracking – Found RTX/OmniSTAR satellite, verifying data stream.

  • Full Tracking (Service) – Fully tracking RTX/OmniSTAR satellite and using the service indicated in the brackets.

Satellite Link ID – ID of the RTX/OmniSTAR satellite link.

Satellite Link Name – Name of the RTX/OmniSTAR satellite link.

Frequency [MHz] – Frequency of the RTX/OmniSTAR signal.

Bit Rate – Bit rate of the RTX/OmniSTAR signal.

Eb/No [dB] – Signal strength.

SNR [dBHz] – Signal-to-Noise ratio (SNR) of RTX/OmniSTAR signal.

Age of Correction [sec] – Displays the age of corrections in seconds.