User manual TRIMBLE TERRASYNC 2.50 REFERENCE MANUAL REV A

[. . . ] REFERENCE MANUAL TerraSyncTM software REFERENCE MANUAL TerraSyncTM software Version 2. 50 Revision A April 2005 Contact Information Trimble Navigation Limited Mapping & GIS Business Area 7401 Church Ranch Blvd Westminster, CO 80021 U. S. A. +1-720-887-4374 Phone +1-720-887-8019 Fax www. trimble. com Copyright and Trademarks © 2000­2005, Trimble Navigation Limited. For STL support, the TerraSync software uses the Moscow Center for SPARC Technology adaptation of the SGI Standard Template Library. © 1994 Hewlett-Packard Company, © 1996, 97 Silicon Graphics Computer Systems, Inc. , © 1997 Moscow Center for SPARC Technology. [. . . ] If Integrated SBAS is the real-time source that is in use, the real-time SBAS icon appears to the left of the field name. The signal-to-noise ratio of the SBAS satellite signal that is being monitored. Integrated SBAS SNR TerraSync Software Reference Manual 1 59 5 Status Section Real-time Summary screen: RTK Radio summary fields Description The status of the Integrated RTK Radio real-time source. The options are the same as the options for the Integrated Beacon field (see page 159). If RTK Radio is the real-time source that is in use, the RTK icon appears to the left of the field name. The frequency that the RTK radio is listening to. Table 5. 15 Field RTK Radio Frequency Table 5. 16 Field Frequency State Position is Real-time Summary screen: RTK summary fields Description The frequency that the RTK radio is listening to. Select an option from the drop-down list. 56. 2 Setup area There is a Setup area at the bottom of each screen in the Status section's Real-time subsection that provides a shortcut to the Real-time Settings form (see page 196). Make any changes you require, and then tap OK to return to the real-time status screen. 1 60 TerraSync Software Reference Manual Status Section 56. 3 5 External Source Status screen To display the External Source Status screen, open the Real-time subsection (see page 156), tap the Status Mode list button, and select External Source. This screen shows detailed information about the external real-time correction source you have set up. Note ­ If you have configured an external beacon receiver as the external source, the External Beacon Status screen (see page 162) is available instead of the External Source screen. Table 5. 17 Field External Source Status screen: Fields Description The status of this real-time source. The options are: · · In use Waiting The external real-time source is currently being used to correct positions in real time. A lower-ranked choice is currently being used to correct positions in real time. The external source's status is being monitored and the TerraSync software will switch to the external source if it becomes available and it is the highest-ranked available source. External Source · Correction Type Not in use The external real-time source is set up but is not currently being used for real-time corrections. The type of VRS correction being received. The options are: · Network The VRS is providing a network solution, using corrections from more than one base station to calculate the position of the virtual reference station. The VRS is operating in raw mode, and is using only one base station to provide RTCM corrections. · Single Station This field only appears if the external source is a virtual reference station (VRS). TerraSync Software Reference Manual 1 61 5 Status Section External Source Status screen: Fields (continued) Description The duration, in hours, minutes, and seconds, of the current VRS connection. The amount of data, in megabytes, kilobytes, or bytes as appropriate, that has been sent and received since the connection was established. The time, in seconds, since the last correction message from this source was received. Table 5. 17 Field Connection Up-time Data Received Last correction 56. 4 External Beacon Status screen To display the External Beacon Status screen, open the Real-time subsection (see page 156), tap the Status Mode list button, and select External beacon. This screen shows detailed information about the external beacon receiver you have set up as an external real-time correction source. 1 62 TerraSync Software Reference Manual Status Section 5 Note ­ If you have configured an external source that is not an external beacon receiver, the External Source Status screen (see page 161) is available instead of the External Beacon Status screen. Table 5. 18 Field External Beacon External Beacon Status screen: Fields Description The status of the external beacon receiver. The options are: · · In use Waiting The external beacon receiver is currently being used to correct positions in real time. A lower-ranked choice is currently being used to correct positions in real time. The external beacon receiver status is being monitored and the TerraSync software will switch to the external beacon if it becomes available and it is the highest-ranked available source. The external beacon is set up but is not currently being used for real-time corrections. The connected GPS receiver does not support real-time corrections from an external beacon receiver. · · Frequency Not in use Not supported The current beacon station frequency being tracked or locked on to by the external beacon receiver. [. . . ] It uses data from a network of base stations to provide corrections to each rover that are more accurate than corrections from a single base station. To start using VRS corrections, the rover sends its position to the VRS server. The VRS server uses the base station data to model systematic errors (such as ionospheric noise) at the rover position. It then sends RTCM correction messages back to the rover. WAAS (Wide Area Augmentation System) WAAS was established by the Federal Aviation Administration (FAA) for flight and approach navigation for civil aviation. [. . . ]