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Leica Geosystems GS20 Field Guide Version 1.1 English.
Leica Geosy stems GS20 Field Guide-1.1.0en 2 Leica Geosy stems GS20 Congratulations on your purc hase of a new Leica Geosystems System GS20. To use the equipment in the permitted manner, please refer to the de tailed safet y instructions in the User Manual.
V iew of chapters Leica Geosy stems GS20 Field Guide-1.1.0en 3 View of chapters 1. Basic Operation ........ .................................... ..................... 11 2. Data Collection .......... .................................... ..............
Introduction Leica Geosy stems GS20 Field Guide-1.1.0en 4 Introduction The Leica Geosy stems GS20 The Leica Geosystems GS20 PD M was conceived to provide the GIS community with a GP S data collection device that combines the simplicity of a recreational GPS handheld with the power and flexibility of a professional grade mapping system.
Registration Leica Geosy stems GS20 Field Guide-1.1.0en 5 Registration Congratulations on your purchase of the Leic a Geosystems GS20 Professional Data M apper. To ensure premium suppor t and service of your new GS20, pl ease take the time to fill out and mail the attached Registration Card.
Registration Leica Geosy stems GS20 Field Guide-1.1.0en 6 Company stamp, addition al notes/information: Leica dealer:.
T able of Contents Leica GS20 Field Guide-1.1.0en 7 Table of Contents 1. Basic Operation ............. ................. .............. 11 1.1 Batteries and Charging ............................... 11 1.1.1 Calibrating the Battery ................... .
T able of Contents Leica GS20 Field Guide-1.1.0en 8 2.3.3.4 Step 4: Display Attributes: Attaching Map Symbology .... .............. .............. .............. . 29 2.3.3.5 Step 5: Transf erring Code list to th e Sensor ............. .............. .
T able of Contents Leica GS20 Field Guide-1.1.0en 9 7. Applications ................. ............ ........... .......... 55 7.1 Cultivated Field Control ............................... 55 7.1.1 Introduction .......... ............. ................ .
T able of Contents Leica GS20 Field Guide-1.1.0en 10 9.8.2.2 Static Phase ........................ .............. ....... 75 9.8.2.3 Kinematic Phase ....................... .............. . 75 9.8.2.4 The Interface ............ .............. ........
Basic Operation Leica GS20 Field Guide-1.1.0en 11 1. Basic Operation 1.1 Batteries and Charging Leica Geosy stems GEB90, 7.2 volt, 2100 mAh L ithium-Ion batteries mu st be used to pow er the Leica GS20 and WoRCS equipment. Charge only with the Leica Geosystems ba ttery charger prov ided in the system .
Basic Operation Leica GS20 Field Guide-1.1.0en 12 1.2 Powering On the Unit Press and release the Power Button located on lower left of the keyboard. The unit will repl y with an audible tone, then proceed to a splash screen and then to the Main Menu.
Basic Operation Leica GS20 Field Guide-1.1.0en 13 1.3.2 Stop and Go Indicators When a static p osition is located, such as a point or a node (in a line or area), the stop and go indicator is displayed as a tripod. Once the icon return s to the walkingman, the user ca n proceed to the next co llection point.
Basic Operation Leica GS20 Field Guide-1.1.0en 14 1.4 Button Functions 1.4.1 Alpha Numeric Keys Keys 1-9 represent the alpha numeric e ntry keys of the GS20. Similar to a cellular phone, buttons 2-9 co ntain alpha characters; by pressing the key continuously, a ll characters on that key will be scrolled.
Basic Operation Leica GS20 Field Guide-1.1.0en 15 1.4.3 Enter and Escape Similar to standard Windows’ co ntrols, the Enter ke y is used to either accept a choice or adva nce an action. The Escape key functions both as a back ke y, to escape from a current screen; as well as a backspace in edit fields.
Basic Operation Leica GS20 Field Guide-1.1.0en 16 1.4.6 The Main Menu The Main Me nu is the ba se level of t he Leica Ge osystems GS20 user interface. The Main Menu can be quickly accesse d from an application by double clicking the Menu button .
Basic Operation Leica GS20 Field Guide-1.1.0en 17 1.5 Software User Interface 1.5.1 Map Views The map view is the commo n interface on which all main applications are bu ilt. Data Collection, Data Mana gement and Navigation all contain a map interface that has similar con trols and are continuously u pdated, but have indepen dent settings.
Basic Operation Leica GS20 Field Guide-1.1.0en 18 1.5.2 GPS Symbol and Zoom Controls By default, an open mapping screen zooms to the full extent of data in a job; however if no data exists, the map will be centered on the GPS lo cation (scaled to 1:20m) awaiting collected data.
Basic Operation Leica GS20 Field Guide-1.1.0en 19 1.5.4 Tables and Filtering Tables ar e used to display mu ltiple attrib ute data th at canno t be directly edited. The table ca n be navigated by the cursor keys (left and righ t being home and end) as well as the overload keys 3 Page Down and 9 Page Up .
Basic Operation Leica GS20 Field Guide-1.1.0en 20 1.5.5.2 T able Filters Table filters allow the u ser to search for da ta based upon the same criteria as listed above in map filters. Once a table is filtered, the user can select from the f iltered table, or view the selected filters in the map view via the context menu choice Table Fea tures .
Data Collection Leica GS20 Field Guide-1.1.0en 21 2. Data Collection 2.1 Job Management When Data Collection is ope ned, if no job is currently selected, the user will be prom pted to either “Open” an existing job or create a “New” job to continue.
Data Collection Leica GS20 Field Guide-1.1.0en 22 2.2 Background Files in the GS20 Often it is important for a user to see th e location of they’re current posit ion and tho se Features they have co llected withi n a larger cont ext. Howe ver, it is not always necessary or even beneficial to have that data selectable.
Data Collection Leica GS20 Field Guide-1.1.0en 23 A status of available memory will be available to provide information on how much informati on can be attached to a job. Memory used in background f iles will affect the amount of map data that can be collected, so be conservative in your estimates.
Data Collection Leica GS20 Field Guide-1.1.0en 24 2.2.5 Viewing the Map If all has gone according to plan, the graphic file will be attached to the current job, an d will be displayed in Map View applications.
Data Collection Leica GS20 Field Guide-1.1.0en 25 2.3 Code Management Because the Leica Geo systems GS20 is designed for GIS data creation and updat e, existing feature layer will be used as a code template for each particular job. Additional codelists can be attached to a job via Codelist Manage r.
Data Collection Leica GS20 Field Guide-1.1.0en 26 2.3.2 Using the Codelist Manager 1. Select T ools from t he Main Menu. 2. Select Codelist Manager, this is the interface you will see. Listed below are the steps fo r codelist creation. We will list them here, an d then look at each on e in depth.
Data Collection Leica GS20 Field Guide-1.1.0en 27 2.3.3.1 Step 1: Creating a new codelist in GIS Data Pro 1. Click on Codelist and select New Codelist 2. Type in name of the New Codelist. 3. Click OK. Your new co delist is now created, highlighted a nd ready to be populated.
Data Collection Leica GS20 Field Guide-1.1.0en 28 2.3.3.3 Step 3: Creating Attributes 1. From the Attribute pull down menu choo se New Attribute 2. Fill in the attribute name and properties. 3. The attribute Type can be Normal, Mandatory or Fixed 4. The attrib ute Value can be Text, Real or Intege r 5.
Data Collection Leica GS20 Field Guide-1.1.0en 29 Facts About Attributes: 1. The Z attribute is reserved and cannot be changed. 2. The Z attribute contains elevation da ta 3. Maximum 256 characters pe r Choice List 4. Attribute names must begin with a lette r 5.
Data Collection Leica GS20 Field Guide-1.1.0en 30 2.4 The Codelist and Occupation 2.4.1 The Job Codelist If a job is new (i.e. does not co ntain any data), the user will be taken to the code table; otherwise the user is defaulted into a map view. From the mapview, you can ente r features via the context menu, or by just pressing Enter.
Data Collection Leica GS20 Field Guide-1.1.0en 31 2.4.3.1 Point Offsets When a point cannot be collected dir ectly, an offset can be used to collect a point from a more accessible lo cation. Offset information ca n be entered either m anually, or via an externa l rangefinder.
Data Collection Leica GS20 Field Guide-1.1.0en 32 When collecting a point offset, it is important to input the offset data before occupying the auxiliary point. • Azimuth Distance : Enter Azimuth, Distance and Delta Height before occupying the point.
Data Collection Leica GS20 Field Guide-1.1.0en 33 2.4.5 Modes of Collection When a line or area fe ature is selected, the attribution scr een will display the current mode of collection (i.e. stream or node.) The last sele cted mode becomes the de fault by being stored in the user’s recent value file.
Data Collection Leica GS20 Field Guide-1.1.0en 34 Tip: Anothe r way to share a com mon node is by loca ting a new position with the Backward Azimu th and Distance.
Data Management Leica GS20 Field Guide-1.1.0en 35 3. Data Management 3.1 Philosophy of Feature Selection Data Management selection optio ns and context menus behave differently depe nding on what data has been selected. Once a feature is selected, the user must 5 Deselect via the context menu in order to select another feature.
Data Management Leica GS20 Field Guide-1.1.0en 36 3.1.3 Options with a Node Selected When a node is selected o n a featur e, the us er can selec t another node common to the feature graphica lly in the map, view the coordinates or r e-occupy the node via 1 Geography , or use the 2 Node submenu to: 1.
Data Management Leica GS20 Field Guide-1.1.0en 37 3.2.1.1 T able Filtering As previously discussed in chapter 1.5.4 "Tables and Filtering", Table Filtering pro vides a way to search based on: • Code (Feature Name) • Feature Type (i.
Data Management Leica GS20 Field Guide-1.1.0en 38 3.2.4 Node Submenu When a node or “vertex” has be en selected on a feature, a node submenu pr ovides additional node selection ability as well as the ability to modify the feature on a node level. 1.
Data Management Leica GS20 Field Guide-1.1.0en 39 3.2.4.2 Copying and Past ing Nodes In order to copy a node, a node must fir st be selected. This can be done directly fr om a node table, or most comm only on a feature level. Copying 1. Select the desired feature either graphically or from Feature Management .
Data Management Leica GS20 Field Guide-1.1.0en 40 Appending a Line or Area by Streaming 1. To append a line or area by streaming select th e last node of the line and insert 2 A fter . 2. In the attribution/collection screen, change the collection mode to stream and occupy as you would with a norma l collection.
Data Management Leica GS20 Field Guide-1.1.0en 41 3.3.2 Flow of use (Shar ing a common node between blocks) Select a Feature, and then select a node . If the feature is a point object, you can copy the fe ature or the node. 1. Open Data Collection 2. Open Data Management, select a fe ature, and then select a node.
Data Management Leica GS20 Field Guide-1.1.0en 42 6. Select More from the menu choices, and Paste the n ode from the clipboard. 7. Repeat as necessary. 3.3.3 Creating Point Topology Points features can be linked to other points o r nodes by taking advantage of the paste f unctionality in the Point offset menu.
Navigation Leica GS20 Field Guide-1.1.0en 43 4. Navigation The navigation appl ication is purely a means to guide the user to a point with known coordinate values. The points to be navigated are known in the GPS wor ld as “Waypoints,” from their origin as destinatio ns along th e way.
Navigation Leica GS20 Field Guide-1.1.0en 44 4.1 The Navigation Screen The navigation screen is framed to pr ovide the map display along with active navigational controls an d text. The framed control panel contains a directio nal guidance arrow, and text fields pr oviding: 1.
Navigation Leica GS20 Field Guide-1.1.0en 45 4.2 W aypoint Selection and Management Similar to Data Management, the Naviga tion context menu changes depending on whether data is se lected. When features or nodes ha ve not been se lected, the context menu provides the user with access to: 1.
Navigation Leica GS20 Field Guide-1.1.0en 46 4.4 Updating a Navigated Feature Once a Waypoint has successful ly been reached, a fea ture or node can be update d by: 1. Select Menu and choo se 2 Copy t o Clipboa rd. 2. If Data Management is currently open, Page to the Data Management application.
Job Management Leica GS20 Field Guide-1.1.0en 47 5. Job Management The Job Management application is where jobs are created, selected, deselected, deleted, and mo dified.
Job Management Leica GS20 Field Guide-1.1.0en 48 5.1 Coordinate Sy stems 5.1.1 Introduction Although the GS20 stores all GPS data in a WGS84 geographic coordinate format, it i s possible to translate your data into a local datum, proj ection, or coordinate syst em.
Job Management Leica GS20 Field Guide-1.1.0en 49 5.1.2 Overview When creating a job, it is p ossible to att ach a pre- defined coordinate system, as well as interpolatio n files for non-linear transformations, and calculation s of elevation above mean sea level.
Job Management Leica GS20 Field Guide-1.1.0en 50 5.1.4 Field File Geoid Field File The field file is a subset of the global interpola tion file in order to reduce the overall memor y taken on the hardware. In this example, the GEOID99 was reduced to a field file called LA to serve the Los Angeles Area.
Job Management Leica GS20 Field Guide-1.1.0en 51 1. To Create a Geoid Field file, choose the Global Geoid file, and then select a center and radius, or South -West and North-East limits can be selecte d. • Geographic or Grid coordinate entry will be determined based on the coordinate type defined in your globa l geoid file.
Job Management Leica GS20 Field Guide-1.1.0en 52.
Codelist Management Leica GS20 Field Guide-1.1.0en 53 6. Codelist Management The Codelist Ma nagement application is also used to create, select, deselect, delete, and mo dify codelists. New Codelists, Codes, and Attributes ca n only be cr eated in th e Codelist Manger (i.
Codelist Management Leica GS20 Field Guide-1.1.0en 54 6.2 Creating a New Code 1. Highlight an existing Codelist, select Menu, and choose 6 Code Management . 2. Select M enu and 1 New Code . 3. Edit the Code Name, ot herwise a default name will be provided.
Applications Leica GS20 Field Guide-1.1.0en 55 7. Applications 7.1 Cultivated Field Control 7.1.1 Introduction CFC or Cultivated Field Contro l is a GS20 application aimed at providing an accurate record of crop quantities and tolerance in accordance with Euro pean Union CAP subsidies.
Applications Leica GS20 Field Guide-1.1.0en 56 All identifiers are listed below: Case 00: // new line Case 01: // @ Case 05: // Active Job-name Case 06: // Current Date Case 07: // Current Time Case 0.
Applications Leica GS20 Field Guide-1.1.0en 57 7.1.3 Using the Program Cultivated Field Control can be found under the Application selection in the main menu.
Applications Leica GS20 Field Guide-1.1.0en 58 An area can be selected from the table by highlighting the area and pressing e nter. An area ma y also be se lected by co pying it to th e clipboard from a map or table display in Data Manag ement or Navigation.
Applications Leica GS20 Field Guide-1.1.0en 59 To save your data, and/or get a view of the gener ated log file, press enter and select one of two choices. The log file will now be available from the flash card, either directly, or by using the Data Exchange.
Applications Leica GS20 Field Guide-1.1.0en 60.
Utilities Leica GS20 Field Guide-1.1.0en 61 8. Utilities 8.1 File Browser The File Browser is the Leica Geosystems GS20 equivalent of Windows’ File Explorer. The file browser provides the ability to view the directory and file structure of the compact flash and system memory.
Utilities Leica GS20 Field Guide-1.1.0en 62 8.1.3 Firmware Update When new firmw are (or so ftware) is ava ilable for th e Leica Geosystems GS20, the update will normally be provided on compact flash media. If however t he file is delivered in anoth er format, (e.
Setup Leica GS20 Field Guide-1.1.0en 63 9. Setup The Setup application con tains both defa ult and user defined configurations that determine how a u nit operates. Three default configurations ar e preloaded on the Leica Geosystems GS20 to allow the us er to begin dat a collection immediately.
Setup Leica GS20 Field Guide-1.1.0en 64 9.2 T ree Directory Navigation The tree style directory menu of Setup groups similar screens into expandable br anches. Each branch of the tree can be navigated using the u p and down arrows. Sub- branches of a tree are depicted by a “+” to the left of the branch; this can be expanded by pressing Enter.
Setup Leica GS20 Field Guide-1.1.0en 65 4. Character edit time-out changes the amo unt of time a character is in edit mode. After the time-out the selected becomes an en tered value, and the cursor moves r ight to the next edit field. 9.3.2 Contrast Provides contrast controls using the left and right arrow.
Setup Leica GS20 Field Guide-1.1.0en 66 9.3.4 Clearing a Selected Device 1. Expand the “Wireless” and “Bluetoo th: Leica” tree branches. 2. Highlight the wireless port to be cleared and select Menu and choose Cl ear .
Setup Leica GS20 Field Guide-1.1.0en 67 9.3.6 Linking with the Bluetooth The cleanest way to link to a mobile phone is using a Bluetooth Virtual Serial port. Both the Sony Ericson and Siemens S56 have proven to work well with the GS20. Although Bluetooth is a cons ortium standard , Bluetooth devices don’t always work togeth er.
Setup Leica GS20 Field Guide-1.1.0en 68 4. One AT String you may wish to change is dial. By default it is set to pulse dialing, but it can be set to tone with an additional T. Dial ATDT^#^M 5. The Device Also Requires that a station be selecte d. However, it is necessary to cr eate a station list or transfer from an external source.
Setup Leica GS20 Field Guide-1.1.0en 69 More Status If your station connects, yo u will receive a link under the Arrow: Still Hollow. If your corrections are good you should receive a solid arrow, and an indication in the status bar.
Setup Leica GS20 Field Guide-1.1.0en 70 9.5 Device Manager The Device M anager prov ides a libra ry of all devices availa ble for Real-Time, Offset, and AS CII Input. The Device Manager allows for existing devices to be modif ied as well as New Devices to be created.
Setup Leica GS20 Field Guide-1.1.0en 71 •T h e DOP , or Dilution of Precision Filter is user definable mask based on satellite geom etry. This is a setting normally used for au tonomous (i.
Setup Leica GS20 Field Guide-1.1.0en 72 9.6.5 Initialization The time and initial positio n controls help the unit to obtain satellites faster in a new geograph ic location or when there is no almanac data pre sent on the unit. Time/Date and position controls can be edited by selecting 8.
Setup Leica GS20 Field Guide-1.1.0en 73 3. CQ Warnin g (Coordina te Qua lity): Even if Point Autostop is set to none, a notification alarm can be set to alert the user that the defined quality has been exceed ed. Line Quality 1. Defines the horizontal quality tolerance fo r linear streaming.
Setup Leica GS20 Field Guide-1.1.0en 74 Port : Three ports a re currently available for connection to a Real-Time device. • Port 1: Serial Lemo con nection on the bottom of the GS20 • WoRCS 1: The 5 pin Lemo Port located on the bottom of the WoRCS Bluetooth Hu b.
Setup Leica GS20 Field Guide-1.1.0en 75 9 . 8 . 2 . 2 S t a t i c P h a s e Static Phase collection is optim ized for high accuracy single point occupation s, which require that ea ch ambiguity resolution be a separate calculation.
Setup Leica GS20 Field Guide-1.1.0en 76 When a phase mode has been s witched, a message will pop up to indicate that settings may have been changed to the configuratio n.
Setup Leica GS20 Field Guide-1.1.0en 77 9.8.3 WAAS and EGNOS The Wide Area Augmentation Sy stem, or WAAS is a free real- time correction for GPS available in North America, and is comparable to the Euro pean EGNOS correction, curre ntly in a testing phase.
Setup Leica GS20 Field Guide-1.1.0en 78 3. Most likely, you will want to selec t a User Defined configuration or press Me nu and create a New configuration based on your highlig hted default. 4. Enter the configuration, and exp and the Interface bran ch.
Setup Leica GS20 Field Guide-1.1.0en 79 9.8.3.2 Changes to th e Real-T ime Screen A new Source se lection allows the user to select none ( no correction), WAAS, RTCM (Inc luding Real-tim e Beacon, and Real-time Satellite), Lei ca and Trimble CMR. If the RTCM, Leica or Trimble CMR source is selected, you must then specify a device.
Setup Leica GS20 Field Guide-1.1.0en 80 9.8.4.1 Powering on the WoRCS 1. The Bluetooth Module is the only belt item with configurable controls. By Default, Power should be set to On, and Line should be set to Bluetooth. 2. Follow the procedure listed previously for charg ing the batteries.
Setup Leica GS20 Field Guide-1.1.0en 81 8. Finally, press the Menu key and Save, then Escape back to the main menu. Tip: Ensure batteries are charged and correctly inser ted. Ensure bluetooth module is set to line and on. The single flashing red light indicates that p ower is available.
Setup Leica GS20 Field Guide-1.1.0en 82 2. If the Real-time va lues are all z ero, there is no communication to the re al-time beac on modu le. So you will need to verify the configuration.
Setup Leica GS20 Field Guide-1.1.0en 83 WoRCS Belt 1. WoRCS Power Supply Module 2. WoRCS RTB Module 3. WoRCS BLUETOOTH Module 4. WoRCS Belt with Belt keepers 5. WoRCS Power Supply Jacked 6. WoRCS RTB Module Jacked 7. WoRCS BLUETOOTH Module Jacked 8. Power Supply to BL UETOOTH Module Cable 9.
Setup Leica GS20 Field Guide-1.1.0en 84 1. Power on the GS20 and select 8 Setup , 2 Hardware Management and the Blue tooth_Wireless Sele ction . 2. Expand the Wireless tree, ex pand the Blue tooth, and view WoRCS.
Setup Leica GS20 Field Guide-1.1.0en 85 9.8.5.3 Checking the WoRCS Real-T ime Link Once the Bluetooth Link is es tablished, you will need to make sure that your real-time device is linked and active. If the status message “Reference Data is Available” ap pears, setup is complete, and there is no need to proceed any further.
Setup Leica GS20 Field Guide-1.1.0en 86 7. Escape and save the values, then escape an d save the configuration. ) If you are editing a default configuration, you will be prompted to provide a configur ation name. 8. Escape to the main menu, and return to the status/ Interface/R eal-time br anch to check the status of the rea l- time device.
Setup Leica GS20 Field Guide-1.1.0en 87 ) Not all Lemo connections a re wired the same! Consult your vendor and rangefinder manual to ensure your cable is correct! ) If using a D B9 cable in terface, it m ay be nece ssary to use a null modem. A null modem switches th e 2 and 3 pin of a serial interface.
Setup Leica GS20 Field Guide-1.1.0en 88 4. Escape and save changes. On ce you have the device an d port settings set to match the offset devic e and port connection you are us ing, you will be ready to collect data. 9.8.6.2 Overview of the basic methodol ogies of point offset data collection.
Setup Leica GS20 Field Guide-1.1.0en 89 Distance Distance: En ter Distance and Delta Ht fo r 1st position from Aux Pt A; repeat for position B and choose the solution meth od (i.e. Left or Right) ) Because two solutions ex ist for a dou ble distance intersection s, the us er must tell t he software on what side of point A-B the o ffset point lies.
Setup Leica GS20 Field Guide-1.1.0en 90 3. If your rangefinder only calculat es a dista nce, you mu st manually ente r the other para meters. 4. Select Occupy, similar to normal point collection.
Setup Leica GS20 Field Guide-1.1.0en 91 The known feat ure is automatically sele cted from the Ge o- Clipboard in the offset screen . No Occupation is necessary. ) By Calculating the Back. Az imuth Dist. Offset without populating the fields (i.e. zero), it is possible to create new features with a shared topology to the paren t “pasted” node.
Setup Leica GS20 Field Guide-1.1.0en 92 9.9 Units and Formats Units and Formats allow the Lei ca Geosystems GS20 to be entered and display according to th e users specifications.
Status Leica GS20 Field Guide-1.1.0en 93 10. Status The Status application of the Leica Geosystems GS20 provides feedback concerning current position, satellite location, signal strength, real -tim e differential corrections, and system information.
Status Leica GS20 Field Guide-1.1.0en 94 10.1.3 Satellite View The satellite view provides a user friendly interface for viewing visible vs. tracked satellites. Sa tellites are displayed by their corresponding number . Tracked satellites appear highlighted with the satellite number inverted.
Glossary Leica GS20 Field Guide-1.1.0en 95 11. Glossary Almanac Library of coarse satellite orbi tal data used to calculate satellite position, rise time , elevation, and az imuth. ASCII American S tandard Code for Info rmation Interchange, developed th rough the Amer ican Nationa l S t andard s Institute.
Glossary Leica GS20 Field Guide-1.1.0en 96 Dilution of precisio n (DOP ) A description of the purely g eometrical con tribution of the uncertainty in a po sition fix. Ellipsoid A mathematical figure form ed by revolving an ellipse about its minor axis, used in geodesy to b est fit the shape of the earth.
Glossary Leica GS20 Field Guide-1.1.0en 97 Longitude Longitude is the angle betwee n the meridian ellipse whi ch passes through Greenwich and the meridian ellipse containi ng the point in question. Mask Angle The minimum elevation angle belo w which no more GPS satellites are tracke d by the receiver .
Glossary Leica GS20 Field Guide-1.1.0en 98 RTCM Radio T echnicial Comission fo r Maritime services. Commission set up to define dif f erential data link to relay GPS messages from a monitor st ation to a field user . Selective Availability Degradation of GPS point posi tioning accuracy for civilian users by the U.
Leica GS20 Field Guide-1.1.0en 99 12. Index A Almanac ................................................... 13 , 72 ASCII ............................................................... 70 Attribute ......................................................
Leica Geosystems AG CH-9435 Heerbrugg (Switzerland) Phone +41 71 727 31 31 Fax +41 71 727 46 73 www.leica-geosystems.com Leica Geosystems AG, Heerbrugg, Switzerland, h as been certifie d as being equi.
Een belangrijk punt na aankoop van elk apparaat Leica GS20 (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen Leica GS20 heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens Leica GS20 vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding Leica GS20 leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over Leica GS20 krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van Leica GS20 bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de Leica GS20 kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met Leica GS20 . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
