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Workshop sponsors: Boulder Lake Environmental Learning Center Minnesota Logger Education Program University of Minnesota Extension Service Introduction.

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Presentation on theme: "Workshop sponsors: Boulder Lake Environmental Learning Center Minnesota Logger Education Program University of Minnesota Extension Service Introduction."— Presentation transcript:

1 Workshop sponsors: Boulder Lake Environmental Learning Center Minnesota Logger Education Program University of Minnesota Extension Service Introduction to Global Positioning System (GPS)

2 Introductions John Geissler Boulder Lake Environmental Learning Center Tom Hollenhorst Natural Resources Research Institute Ben Mattila University of Minnesota Duluth Participants (name, employer, where you live, experience)

3 Housekeeping Restrooms Breaks & Refreshments Lunch

4 Workshop Objectives Overview GPS basics Overview GPS basics –What it is, how it works and a history Is a GPS going to be helpful Is a GPS going to be helpful Identify key purchase considerations Identify key purchase considerations

5 Workshop Format and Resources Indoor/outdoor format Active participation through exercises and Questions Attendance and evaluation Adjourn by 4:15 PM Available resources (www.MLEP.org)

6 What Will GPS Do For You? Get you to a prospective saleGet you to a prospective sale Help you determine the acreageHelp you determine the acreage Help you map out the access to a saleHelp you map out the access to a sale Help you get back to the hot fishing spotsHelp you get back to the hot fishing spots Help you on the golf courseHelp you on the golf course

7 What Will GPS Do For You? Answers the age old questions, “Are we there yet?” “How much longer?”

8 Garmin GPSMap 76 Basic Components Courtesy of Garmin International, Inc

9 Garmin GPSMap 76 Optional Items Obtained Carrying caseCarrying case External power sourceExternal power source Owner’s manualOwner’s manual

10 Determine your current positionDetermine your current position -Shows the location on an electronic map -Provides you a coordinate you can look up Remember a placeRemember a place Determine areaDetermine area Leading you to a destinationLeading you to a destination Record routes or pathsRecord routes or paths Basic GPS Tasks Basic GPS Tasks

11 Intermediate GPS Determine waypoints from a mapDetermine waypoints from a map Transfer data from a computerTransfer data from a computer –Software upgrades –Waypoints, tracks, and routes –Maps Transfer data to a computerTransfer data to a computer –Waypoints, tracks, and routes –Create maps

12 What GPS Won’t Do Will not work under water Will not work under water Will not work underground Will not work underground May not work indoors May not work indoors

13 History of GPS 1960 – GPS was conceived1960 – GPS was conceived 1978 – Department of Defense launched the first satellite1978 – Department of Defense launched the first satellite Early 1980s – GPS system made available for civilian use by Executive OrderEarly 1980s – GPS system made available for civilian use by Executive Order 1992 – GPS was used as a navigational unit in Desert Storm1992 – GPS was used as a navigational unit in Desert Storm 2003 – WAAS became available2003 – WAAS became available

14 The Three Segments of GPS

15 NAVSTAR US Satellite System 24 satellite constellation system Space segment Courtesy of Garmin International, Inc

16 GPS Satellite Control Control segment

17 You – the user User segment

18 Garmin GPSMap 76 Courtesy of Garmin International, Inc 2 AA batteries 2 AA batteries 16 hours battery life 16 hours battery life Calculates area Calculates area Stores 1,000 waypoints Stores 1,000 waypoints WAAS capable for increased accuracy WAAS capable for increased accuracy

19 Garmin GPSMap 76 Courtesy of Garmin International, Inc Grayscale display Grayscale display Weighs 7.6 ounces Weighs 7.6 ounces Operates down to 5° Fahrenheit Operates down to 5° Fahrenheit

20 Garmin GPSMap 76 Courtesy of Garmin International, Inc.

21 Courtesy of Garmin International, Inc Garmin GPSMap 76

22 Exercise One The purpose of this exercise is to become familiar with turning on the unit and with the screen displays Satellite View Map View Compass View Highway View GRAB YOUR EXERCISE ONE WORKSHEET AND LET’S HEAD OUTSIDE

23 Exercise One Let’s review what we did Date Time Location Satellite bars Number below bar = satellite number Satellite Signal Strength Bars Clear = initial comm Link established Gray = preliminary location data Black = normal communications Bar Height = indicates signal strength D = indicates differential (WAAS) established Relative satellite location Center = overhead Inner circle = 45 degree to horizon Outer circle = horizon Black number = normal communication Non-black number = no communication Receiver status Data fields LAT LON Satellite View

24 Exercise One Let’s review what we did How to interpret the Sky plot Satellite View

25 Exercise One Let’s review what we did Contour Road Data fields (modifiable) Scale Waypoint Your current location Map Page

26 Exercise One Let’s review what we did Gray bar = Direction you are traveling Data fields (modifiable) Pointer = Direction you should be traveling Waypoint Compass View

27 Exercise One Let’s review what we did Course Data fields (modifiable) Scale Current waypoint being navigated to Available waypoint Accuracy Highway Page

28 Exercise One Let’s review what we did Distance to waypoint Waypoint Total distance Other information Name GOTO Information

29 Exercise Two Map a Boundary to Determine Area During this exercise you will navigate the boundary of an area. Once the track is closed, you will be able to calculate an approximate area. GRAB YOUR EXERCISE TWO WORKSHEET AND LET’S HEAD OUTSIDE

30 Exercise Two Let’s review what we did

31 Clear the track log & walk the perimeter Determining an area is easy. Save the Track Log and the unit will display the perimeter length and area.

32 Workshop sponsors: Minnesota Logger Education Program St Louis County Land Department University of Minnesota Extension Service Special thanks to Jeff Dodge Wisconsin Indianhead Technical College (WITC) Introduction to Global Positioning System (GPS)

33 Exercise Three Navigating The purpose of this exercise is to help you understand how to use the GPS unit to find a point designated on a sale map or possibly a corner. You will be navigating to several pre-loaded destinations using the compass or map screen displays. Each location is marked by a colored sticker, letting you know you successfully located the destination.

34 Exercise Three Position – The X, Y, and Z coordinates which indicate where the receiver is located.Position – The X, Y, and Z coordinates which indicate where the receiver is located. Course, Bearing & Direction - The compass direction from a position to a destination.Course, Bearing & Direction - The compass direction from a position to a destination. Heading – The direction you are moving.Heading – The direction you are moving. Distance – The length between two waypoints or from your current position to your destination.Distance – The length between two waypoints or from your current position to your destination. Speed – How fast you are going at that very moment.Speed – How fast you are going at that very moment. Basic Information GPS Provides

35 Exercise Three Navigating What your GPS screen is telling you about the real world

36  Location – The actual physical place where you are or the place you are trying to get to  Position Fix – Where the GPS unit says you are  Waypoint/Landmark – Locations worth locating and storing in your GPS unit Locations that you may want to return to (fishing hole) or avoid (cultural resource)  Coordinate Systems – Such as latitude/longitude, represent your position on the earth to a flat surface like a sale map Exercise Three Navigating Important Terms GRAB YOUR EXERCISE THREE WORKSHEET AND LET’S HEAD OUTSIDE

37 (Garmin-Pointer Page) Gray bar = Direction you are traveling Pointer = Direction you should be traveling Exercise Three Let’s review what we did

38 Map Page Zoom

39 (Garmin-Highway Page) Exercise Three Let’s review what we did Modifiable Information Box Waypoint Name Course you should be walking Your Position View Magnification Course you are actually walking Your Destination Modifiable Information Box Modifiable Information Box Modifiable Information Box Modifiable Information Box Modifiable Information Box

40 Latitude and Longitude coordinates Exercise Four Entering Coordinates

41 Press and hold the Enter key to mark a waypoint. Exercise Four Entering Coordinates When the screen below is shown, you are ready to make your edits.

42 Exercise Four Entering Coordinates

43

44 New coordinates to enter Permit number X2825 N 48 o 05’ 34.0” W093 o 37’ 59.0” Where is this timber sale located?

45 GPS Accuracy Operator Error Transposing numbers when entering in coordinates.Transposing numbers when entering in coordinates. Error in measuring coordinates on a map.Error in measuring coordinates on a map. Using the wrong coordinate system.Using the wrong coordinate system.

46 GPS Accuracy Things You Can’t Control Satellite clock and location Satellite clock and location Multipath caused by foliage Multipath caused by foliage Relationship of satellites to each other in the sky Relationship of satellites to each other in the sky Equipment and background noise Equipment and background noise Atmosphere Atmosphere

47 GPS Accuracy Things You Can Control Multipath caused by vehicles and buildings Multipath caused by vehicles and buildings WAAS capable receiver WAAS capable receiver Time of use Time of use

48 GPS Accuracy Selective Availability Error STAND ALONE GPS MODE DGPS WAAS

49 GPS without differential correction is at least as good as compass and pacing for locating points and area calculations. GPS without differential correction is at least as good as compass and pacing for locating points and area calculations. GPS with differential correction will always be more accurate than GPS without that correction. GPS with differential correction will always be more accurate than GPS without that correction. How close is close enough depends on the application. How close is close enough depends on the application. How Accurate is Accurate Enough?

50 Purchase Considerations UsesUses Size and weightSize and weight Battery lifeBattery life Antenna configurationAntenna configuration

51 Purchase Considerations MemoryMemory WAAS enabledWAAS enabled MappingMapping PricePrice

52 GPS Units

53 Optional Accessories Color screen Remote antenna Carrying case External power source Mounts Software

54 Intermediate GPS Determine waypoints from a mapDetermine waypoints from a map Transfer data from a computerTransfer data from a computer –Software upgrades –Waypoints, tracks, and routes –Maps Transfer data to a computerTransfer data to a computer –Create maps –Waypoints, tracks, and routes

55 Questions?

56 Evaluations - Conclusion EvaluationEvaluation Workshop attendance confirmation formWorkshop attendance confirmation form Thank You!Thank You! John Geissler Naturalist Boulder Lake Environmental Learning Center 7328 Boulder Dam Road Duluth, MN


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