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Global Positioning System. Much of this presentation is taken from a geocaching PowerPoint presentation made by the Wisconsin Geocaching Association. Global Positioning System. GPS is a system of 27 satellites (24 active, 3 reserve) to calculate a position.

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global positioning system
Global Positioning System

Much of this presentation

is taken from a geocaching

PowerPoint presentation made

by the Wisconsin Geocaching Association

global positioning system2
Global Positioning System
  • GPS is a system of 27 satellites (24 active, 3 reserve) to calculate a position.
  • Satellites transmit their current position down to Earth via radio waves.
gps receiver
GPS receiver
  • Receives signals from GPS satellites.
  • Determines latitude and

longitude of current position

on the Earth's surface.

uses for gps receivers
Uses for GPS receivers
  • Hiking and backpacking
  • Canoeing and marine navigation
  • Hunting and fishing
  • Bird watching
  • Search and rescue
  • Traveling via car, motorcycle, bicycle

Geocaching

what is geocaching
What is geocaching?
  • Outdoor adventure game for GPS users. Great for kids.
  • The basic idea is to set up caches (hidden containers) and share the locations (latitude/longitude) of these caches on the internet.
geocache containers
Geocache containers
  • A weather-resistant container such as Tupperware, Rubbermaid, or surplus ammo box
wisconsin geocaching association
Wisconsin Geocaching Association
  • www.wi-geocaching.com
  • www.brillig.com/geocaching
  • www.geocaching.com
hixon forest caches
Hixon Forest Caches

http://www.geocaching.com/seek/cache_details.aspx?ID=96888

http://www.geocaching.com/seek/cache_details.aspx?guid=6c628469-3eef-48d6-80ef-fdb9ed40d12e

http://www.geocaching.com/seek/cache_details.aspx?guid=6c628469-3eef-48d6-80ef-fdb9ed40d12e

slide13

PAGE

GOTO

MARK

ON/OFF

ENTER

slide14

Push once to turn on,

then wait for unit to

Find satellites

Push and hold for

2 seconds to turn off

ON/OFF

slide15

MARK is to enter into

the unit the latitude

and longitude of current

position

(e.g. to get back home)

MARK

slide16

Repeatedly pressing

PAGE shows you all

The available pages,

Including the important

“WAYPOINT” and

“WAYPOINT LIST,”

which will give you

latitude and longitude

of Waypoint

PAGE

slide17

GOTO

Press GOTO to get list of

Waypoints, then press

ENTER to go to specific

Waypoint

ENTER

slide18

GOTO

Also press ENTER to go

From “Highway” to

“Compass” format of

specific Waypoint

ENTER

slide19

Compass Format of Waypoint

S

W

E

N

Name of Waypoint

C1

m

i

212º .21

BRG DST

BRG = Bearing

DST = Distance in miles

TRK = Track taken

SPD = Speed in miles/hour

ETE = Estimated Time

Enroute

+

+

+

+

TRK SPD

210º 2.0

m

h

ETE 06:17

slide20

S

W

E

N

C1

m

i

212º .21

BRG DST

In order to get bearing, distance, etc…, you need to start walking in any direction. After about 20-30 feet, the unit will triangulate your direction of travel with your starting point.

+

+

+

+

TRK SPD

210º 2.0

m

h

ETE 06:17

slide21

C1

m

i

212º .21

BRG DST

If arrow is not pointing straight ahead, veer in the direction that the arrow is pointing.

In this example, veer right or toward the southwest.

S

+

+

W

E

+

+

N

N

TRK SPD

183º 2.0

m

h

ETE 06:17

slide22

C1

Goal is to work the distance to the Waypoint down to .00 miles.

Realistically it may get only to .01 miles, maybe even .02 miles.

m

i

212º .21

BRG DST

S

+

+

W

E

+

+

N

N

TRK SPD

183º 2.0

m

h

ETE 06:17