GPS

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GPS

• Your Co-pilot Guide

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GPS Navigation

• Background
• Our Equipment The Apollo GX-55
• Controls and Function Hierarchy
• Display Pages
• Example Tasks

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Background

• Constellation of 24 satellites in six orbital
  planes
• Accuracy of 20 Meters with selective
  availability now discontinued
• Civilian accuracy was 100 Meters previously

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Selective Availability

• Feature of GPS that degrades accuracy of position
  determination for civilian use
• Intended as a security feature
• Was discontinued May 1, 2000
• It's been replaced by selective deniability,
  which allows the military to geographically
  pinpoint areas in which to degrade GPS quality.

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Comparing Accuracy with and without SA

• The plots show that SA causes 95 of the points
  to fall within a radius of 60.7 yards. Without
  SA, 95 of the points fall within a radius of 7.9
  yards.

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Our Equipment Apollo GX-55

• Extensive Database
• Scrolling Map Display
• Search and Rescue Functions

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GX-55 Controls
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Large Small Knobs

• Moving between pages
• Large knob selects most main pages
• Small knob selects sub pages
• Different scale maps
• Sub-pages in set-up areas
• Entering Data
• Large Knob moves cursor
• Small Knob changes word or character at cursor

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Hard Keys

• NAV Navigation display modes or flight plan
  setup
• MAP Map modes
• NRST Lookup nearest waypoints
• INFO Database Information
• SEL Select (to change setting)
• D Direct-To
• Enter Complete some data entry action

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Function HierarchyGetting to the screen you want

• Hard key (example MAP)
• Large Knob (example Map Setup)
• Small Knob (example Route Line, Map Orient,
  Map Reference)
• Other Options and short-cuts available via Soft
  keys (example FPL for Flight plan functions)

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Terminology Waypoint

• A specific named location either defined by the
  user or defined in the instruments database
• Database waypoints come in flavors
• Airport
• VOR
• NDB
• Intersection (INT)

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A Tour of Display Pages

• NAV ETE
• Split Screen Map
• Full Screen Map
• More Pages

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Reading the NAV ETE Display
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ETE DisplayCourse Deviation Indicator
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(No Transcript)
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Some Diamond NAV ETE Pages(Use small knob to
move between)
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Reading the Split Screen Map Page
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Terminology Map Scale

• The distance from the top to the bottom of the
  displayed map

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Reading the Full Screen Map Page
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More Pages

• Lets now look at the different pages that we can
  get to for the 3 most important hard keys
• NAV Screens
• MAP Screens
• NRST Screens

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NAV Key ScreensSelect with Large Knob

• ETA BRG
• Also shows distance
• RAIM Prediction
• Altitude Assist
• Parallel Track
• Useful for offset route search
• GPS Position
• Basic Lat. Long.

• Countdown Timer
• Arc Assist
• To/Next Wpt (Distance)
• To/Next Wpt (ETE)
• To/Next Wpt (ETA)
• From/To/Next Waypoint

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MAP Key ScreensSelect with Large Knob

• Map plus Nav Comm Info
• Map Plus Nav Info
• Map Only
• Search and Rescue Map if configured under Map
  Setup
• Map Setup
• Several sub-screens can be selected using the
  small knob

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NRST Key ScreensSelect with Large Knob

• Select type with largeknob
• Airport (ARPT)
• VOR
• NDB
• INT
• User WPT
• Search Around WPT
• Runway Limits
• SUA
• Select which of 20 nearest using the small knob

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Example Tasks

• Select a waypoint and go direct to it
• View current Lat Long
• Enter a user waypoint
• Set up SAR functions
• View a SAR Map
• Remember a Current Position
• Creating Activating a Flight Plan

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Select a waypoint and go direct to it

• Press theDirect-To Key ( )
• Type of waypoint is flashing (i.e. has
  cursor)use small knob to select type of
  waypoint
• Use large knob to move cursor to first character
  of waypoint identifier
• Use small knob to change character
• Repeat using large knob to move cursor and small
  knob to change character and form the name of the
  destination waypoint.
• Press Enter Key

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Select a waypoint and go direct to it

• Press theDirect-To Key ( )
• Type of waypoint is flashing (i.e. has
  cursor)use small knob to select type of
  waypoint
• Use large knob to move cursor to first character
  of waypoint identifier
• Use small knob to change character
• Repeat using large knob to move cursor and small
  knob to change character and form the name of the
  destination waypoint.
• Press Enter Key

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Select a waypoint and go direct to it

• Press theDirect-To Key ( )
• Type of waypoint is flashing (i.e. has
  cursor)use small knob to select type of
  waypoint
• Use large knob to move cursor to first character
  of waypoint identifier
• Use small knob to change character
• Repeat using large knob to move cursor and small
  knob to change character and form the name of the
  destination waypoint.
• Press Enter Key

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Select a waypoint and go direct to it

• Press theDirect-To Key ( )
• Type of waypoint is flashing (i.e. has
  cursor)use small knob to select type of
  waypoint
• Use large knob to move cursor to first character
  of waypoint identifier
• Use small knob to change character
• Repeat using large knob to move cursor and small
  knob to change character and form the name of the
  destination waypoint.
• Press Enter Key

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View Current Lat Long

• Press NAV key
• Turn large knob until GPS Position screen
  appears

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Enter a user waypoint (by Lat Long)

• Press NAV Key
• Press DB Soft Key
• Turn large knob until Create User Wpt by
  Lat/Lon screen appears
• Press Enter
• Use large small knobs to enter name for new
  waypoint also use knobs to enter lat long
• Press Enter to finish

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Set up SAR FunctionsPart 1 Turn Map On

• Press MAP
• Turn large knob until setup (Route Line)
  screen appears
• Turn small knob until SAR MAP ON/OFF screen
  appears
• If SAR MAP is off, press the SAR Soft button to
  turn it on

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Set up SAR FunctionsPart 2 Select Sectional
Chart

• (SAR MAP ON/OFF Screen)
• Method 1-
• Press SEL (cursor will appear as flashing item)
• turn Large Knob until Position setting flashes
• turn the Small Knob until the desired sectional
  map name (eg. MSP) appears
• Press Enter
• Method 2-
• Press POS soft key until MSP appears

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View a SAR Map

• Press MAP
• Turn large knob until SAR Map appears
• You will see Soft keys labeled GRD, MRK, and PAT
• Press GRD soft key and zoom scale using small
  knob to see grid lines
• Press GRD soft key to see grid number
• Press GRD2 soft key to see quarter grids

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Remember a Current Position

• (from SAR Map Screen)
• Press MRK Soft Button
• Use knobs to select name
• Press enter

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Recap

• What information can you get from this page?

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Recap Here are a Couple Other Views (taken
shortly afterwards)
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Recap What Page is This
It is the SAR Map Page
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Final Recap

• What information can you get from this page?

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For More Information

• Documentation available on the web
• http//www.upsat.com/gxdocs.html