Rtcm, Selective Availability, Signal to Noise Ratio | Leica GS20

RTCM

Radio Technicial Comission for Maritime services.

Commission set up to define differential data link to relay

GPS messages from a monitor station to a field user.

Selective Availability

Degradation of GPS point positioning accuracy for civilian users by the U.S. Department of Defense. SA is produced by clock dithering or orbit degradation.

Signal to Noise Ratio

A ratio of the radio frequency signal strength and the noise floor.

Time and Initial Position

The time and position value a GPS receiver will use with an almanac to more quickly locate satellites.

WAAS

The Wide Area Augmentation System, or WAAS is a free real-time correction for GPS available in North America, and is compatible with the European EGNOS correction, currently in a testing phase. Because this correction is broadcast on the same frequency as GPS, it can be received without the need for additional hardware, and free of charge.

Waypoints

A point, or node on a line or area flagged for navigation.

Leica GS20 Field Guide-1.1.0en

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Glossary

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Leica GS20 manual Rtcm, Selective Availability, Signal to Noise Ratio, Time and Initial Position, Waas, Waypoints, Glossary

Contents

Version Leica Geosystems GS20Field Guide Leica Geosystems GS20 Symbols Used in This Manual View of chapters Philosophy of Operation IntroductionThe Leica Geosystems GS20 Introduction Registration Registration Leica dealer RegistrationCompany stamp, additional notes/information 1. Basic Operation Table of ContentsTable of Contents 2. Data Collection 4. Navigation Table of Contents3. Data Management 5. Job Management 7. Applications SetupTable of Contents Utilities 11.Glossary Table of Contents10.Status 12.Index 1.1.1Calibrating the Battery 1. Basic Operation1.1Batteries and Charging Basic Operation 1.3.1Accuracy Indicator 1.2Powering On the Unit1.3Icons Figure 1-1 Accuracy Indicator 1.3.6Battery and Time Indicators 1.3.2Stop and Go Indicators1.3.3Satellite Indicator 1.3.4Differential Corrections 1.4.1Alpha Numeric Keys 1.4Button Functions1.4.2Power Key Basic Operation 1.4.5Menu Button 1.4.3Enter and Escape1.4.4Cursor Keys Basic Operation Basic Operation 1.4.6The Main Menu1.4.7Paging Figure 1-3 GS20 Main Menu Basic Operation 1.5Software User Interface1.5.1Map Views Figure 1-4 Mapview Selected and Filtered Basic Operation 1.5.2GPS Symbol and Zoom Controls1.5.3Context Menus The map submenu contains zoom controls for Basic Operation 1.5.4Tables and Filtering1.5.5Filtering 1.5.5.1 Map Filters Basic Operation 1.5.5.2 Table Filters Data Collection 2. Data Collection2.1Job Management Figure 2-2 Job Management Screenflow 2.2.2Adding Background Files to a GS20 Job 2.2Background Files in the GS202.2.1Overview Data Collection 2.2.3Creating a Background File in GIS DataPRO 2.2.4Transferring a background FileData Collection Figure 2-4 Creating a background Figure 2-6 Turning off the background 2.2.5Viewing the MapData Collection Figure 2-5 Viewing the Map Data Collection 2.3Code Management2.3.1Creating Codelists Data Collection 2.3.2Using the Codelist Manager2.3.3Steps for codelist creation Data Collection 1. Click on Codelist and select New Codelist Data Collection 2.3.3.3 Step 3 Creating Attributes Facts About Attributes Figure 2-7 Map SymbologyData Collection Figure 2-8 Transferring Codelists 2.4.2Attribution 2.4The Codelist and Occupation2.4.1The Job Codelist 2.4.3Point Collection Figure 2-11 Example of Dist.Dist O/S Data Collection2.4.3.1 Point Offsets Figure 2-12 Offset Methods Graphical Figure 2-13:Line and Area 2.4.4Line and Area CollectionData Collection Figure 2-14 Attribution screen 2.4.5Modes of CollectionData Collection Data Collection 3.1.2Options with a Feature Selected 3.1Philosophy of Feature Selection3. Data Management 3.1.1Options with Nothing Selected 3.1.3Options with a Node Selected 3.2Selecting a Feature3.2.1Feature Management Data Management Data Management 3.2.3Feature Submenu3.2.2Selecting a Node or “Vertex” 3.2.1.1 Table Filtering 3.2.4.1 Re-OccupyingNodes 3.2.4Node SubmenuData Management Inserting into a Feature Node Mode Feature ManagementFeature Management Data Management Data Management 3.3Using the Geographic Clipboard3.3.1Purpose of the Geographic Clipboard 3.3.2Flow of use Sharing a common node between blocksData Management 3.3.3Creating Point Topology Data Management 4. Navigation Navigation 4.1The Navigation Screen Navigation Navigation 4.3Creating a new Waypoint feature4.2Waypoint Selection and Management 4.4Updating a Navigated Feature Navigation Figure 5-1 New Job Dialog 5. Job ManagementJob Management Job Management 5.1Coordinate Systems5.1.1Introduction Job Management 5.1.2Overview5.1.3Attaching a Coordinate System Figure 5-2 Coordinate System Geoid Field File 5.1.4Field FileJob Management Job Management Job Management Leica GS20 Field Guide-1.1.0en Codelist Management 6. Codelist Management6.1Creating a New Codelist Codelist Management 6.2Creating a New Code6.2.1Creating a New Attribute 7.1.2Setup 7. Applications7.1Cultivated Field Control 7.1.1Introduction Applications All identifiers are listed below 7.1.3Using the Program Applications Select a Tolerance or limit of error Applications Applications Leica GS20 Field Guide-1.1.0en Applications Leica GS20 Field Guide-1.1.0en 8.1.1Browser Controls 8. Utilities8.1File Browser 8.1.2Context Menu 8.1.5Clear System Memory 8.1.3Firmware Update8.1.4Sensor Transfer Utilities 9.1Selecting, Modifying and Creating 9. SetupConfigurations Setup Setup 9.2Tree Directory Navigation9.3Hardware Management 9.3.1Hardware 9.3.3.1 Selecting a Wireless Device 9.3.3Wireless Bluetooth ConnectivitySetup 9.3.2Contrast 9.3.5Real-TimeCorrections with a Mobile Phone Setup9.3.4Clearing a Selected Device Setup 9.3.6Linking with the Bluetooth9.3.7Configuring your Device Making the connect Setup 9.3.8Modifying your Configuration9.3.9Connecting to the Station 9.3.8.1 Status Indication 9.4.1Creating an ID Template 9.4ID Template ManagementSetup 9.4.2Modifying an Existing Template Setup 9.5Device Manager9.6GPS 9.5.1Creating a New Device 9.6.2Minimum Satellites Setupwhen an antenna has been plugged in or unplugged 9.6.3Antenna Type 9.6.5Initialization 9.7Data CollectionSetup 9.7.1Quality Monitor 9.8.1Real-Time 9.8InterfacesSetup 9.8.2.1 Overview 9.8.2GS20 Phase WizardSetup 9.8.2.3 Kinematic Phase Setup9.8.2.2 Static Phase 9.8.2.4 The Interface Setup Leica GS20 Field Guide-1.1.0en Setup 9.8.3WAAS and EGNOS Setup 9.8.3.1 Understanding the WAAS Corrections 9.8.3.2 Changes to the Real-TimeScreen 9.8.4Connecting to WoRCS BeaconSetup 9.8.4.2 Checking the Bluetooth Link Setup9.8.4.1 Powering on the WoRCS 9.8.4.4 WoRCS Real-TimeBeacon Setup9.8.4.3 Checking the WoRCS Real-TimeLink Setup 9.8.5Connecting to WoRCS Real-TimeSatellite RTS 9.8.5.2 Checking the Bluetooth Link Setup9.8.5.1 Powering on the WoRCS Setup 9.8.5.3 Checking the WoRCS Real-TimeLink Setup8 Setup 9.8.5.4 WoRCS RTS 9.8.6Offset Devices Setup9.8.6.1 Configuration of the GS20 Setup Leica GS20 Field Guide-1.1.0en Setup 30’00” Setup Leica GS20 Field Guide-1.1.0en Reverse Azimuth and Distance SetupDouble Azimuth or Double Distance To link an external ASCII Device Setup9.8.7ASCII Input 9.9.1Units of Measure 9.9Units and FormatsSetup 9.9.2Language 10.1.1 Position 10. Status10.1GPS 10.1.2 Satellite Information 10.1.3 Satellite View 10.2Interfaces10.3Hardware 10.2.1 Real-Time 11. Glossary Glossary Glossary Dilution of precision DOP Glossary Longitude Selective Availability Signal to Noise RatioRTCM Time and Initial Position 12. Index 733607-1.1.0en