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Related Manuals for II Morrow Inc. Precedus
Summary of Contents for II Morrow Inc. Precedus
- Page 2 II Morrow Inc. II Morrow is a trademark of II Morrow Inc. Apollo is a registered trademark of II Morrow Inc. Precedus is a trademark of II Morrow Inc. 1997 by II Morrow Inc. All rights reserved. Printed in the U.S.A.
- Page 3 The Precedus is unequaled in providing the features, level of performace, and reliability that aviation users require. The Precedus does indeed set a precedent that will be the standard that all other navigation instruments will be compared to. You can be confident in knowing that you are the owner of the state-of-the-art in handheld navigation.
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Page 4: About This Manual
Introduction to Precedus and Getting Started the First Time. These two sections provide the rules for successful use of the Precedus. The rest of the manual contains important information that you can refer to as you need more detail on specific procedures or features. -
Page 5: Table Of Contents
Table of Contents Introduction to GPS Navigation ......1 GPS Overview ......... . 1 GPS System Accuracy . - Page 6 Information About Other Waypoints......30 Information About Nearest Waypoints ..... . 30 Scanning Waypoints for Information .
- Page 7 Available Waypoint Information ......66 ARPT Waypoint Information ......66 Tutorial.
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Page 8: Ordering Information
Aviation Applications The Precedus handheld GPS receiver is intended for use as a navigation aid. In aviation applications, the receiver should be used to complement certified navigation instruments already installed in the aircraft. This device is not intended for use as a primary or sole source of navigation information in aviation applications. -
Page 9: Introduction To Gps Navigation
The Precedus™ receives this data stream and processes the information to determine which satellites are “visible” to the receiver’s antenna. With this determination made, the receiver chooses satellites to calculate a position fix. -
Page 10: Gps System Accuracy
Unlike navigation aids providing a position fix with data Summary from land-based sources, the Precedus™ can provide an accurate position fix over land or sea anywhere in the world. The unit includes an extensive database of useful waypoint information and allows you to create up to 1,000 “customized”... -
Page 11: Operation Basics
Operation Basics This section introduces you to the Precedus and describes its controls and operating functions. Controls This button turns the unit ON and OFF, and also allows you Menu/Pwr to select features from the Main Menu. Turn the unit ON by... -
Page 12: Goto And Nearest
GOTO function or twice for the Nearest Waypoint function. Use the GOTO function to assign a destination waypoint from the Precedus‘s built-in database or one that you personally create. The Nearest function, always available when you use the GOTO function, provides a list of 30 waypoints of each type nearest to your present position. -
Page 13: Display Information
Display Information Information typically includes navigation progress, waypoint information, satellite tracking status, menu options and selections. The Precedus shows you what to do for most functions. Helpful Instructions Helpful instructions will appear in a “pop-up” box on the on the display and advises you on which button to press for options. -
Page 14: Display Screens
Information you view on the display while using the Display Screens Precedus shows one page or “screen” at a time. Many of the operating functions can show more than one screen of information. When more than one screen of information is... -
Page 16: Main Menu
The Main Menu function contains options that control many Main Menu ways the Precedus operates and lets you customize the navigation function to suit your preference. The main menu contains these options: Return to Nav - Returns the unit from the menu to the navigation function. -
Page 17: Navigation Function
Using the menu function does not interrupt navigation. The Reference section describes how to use each main menu option. The Precedus has several screens available while you use the Navigation Function navigation function. Each screen contains useful information. -
Page 19: Getting Started The First Time
GPS satellites, enter a seed position, assign a destination waypoint, and detach your antenna. This section shows you how to start the Precedus and check for proper operation. It is necessary to enter a seed position and the current time the first time you turn the unit on. -
Page 20: Entering A Seed Position
Entering a Seed Position 1. Press Press the highlight the “Time & Place” function. Press Place” function. 2. Set the latitude and longitude coordinates near to your current position. Use the values. The the highlight on the screen to select the next value to change. - Page 21 As an example, the UTC DIFF value in Seattle, Washington would be +08:00 (or +07:00 during daylight savings time). 1 1 1 0 9 8 7 6 5 4 3 2 1 0 Add Hours Subract 1 hour during summer for Daylight Savings Time 4.
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Page 22: Checking Gps Signal Strength
Checking GPS Signal Strength While the Precedus acquires signal information from satellites, the bars representing signal strength show grey in color. This process takes place quickly. When the unit has acquired a signal and begins tracking a satellite, the bar will change to black. -
Page 23: Checking Each Satellite
Press the Checking Each visible satellites. Satellite The GPS antenna must be able to “see” each satellite it is tracking. If a satellite is “shaded” by the wing or fuselage during a turn, it may temporarily lose track of that satellite. If this happens, or if the geometry of the satellites available is poor, the unit may temporarily calculate a “2D Fix”... -
Page 24: Entering A Destination Waypoint
With a seed position and the current time and date set, the Entering a Destination Precedus is ready to begin navigating a trip. Prepare for trip Waypoint navigation by entering a destination waypoint. Waypoints are stored in the unit’s built-in database. - Page 25 OR city name, press the highlighted vertical arrow symbol will appear to the left of the first character. Use the through each waypoint in the Precedus’s built-in database. 4. Make sure correct waypoint is selected. Press the information.
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Page 26: External Antenna
The built-in regular antenna for the Precedus may be removed External Antenna and used as an external antenna. A dummy antenna is inserted into the Precedus to replace the built-in antenna. A six-foot cable is provided to connect to the regular antenna. -
Page 27: Navigation Basics
When you finish using other functions and return to the navigation function, the last navigation screen used is displayed. While you navigate, the Precedus gives you information in About the Navigation the Navigation function screens. Screens provided are: zero... -
Page 28: Gps Status
The satellite azimuth and elevation from the current position The GPS receiver’s current track status for each visible satellite The Precedus helps you navigate by informing you of Messages important events or conditions while you fly. When an important event or condition occurs, an alert message shows on the display to inform you. -
Page 29: Custom Navigation Screens
You can customize the Navigation Information pages by Custom Navigation selecting the information shown in each of the windows. Screens A listing of the available navigation screens is given on the next page. 1. In the Navigation function, press and hold the button to highlight the top information window. -
Page 30: Navigation Information Choices
Navigation Information Choices... -
Page 31: Moving Map Screen
The following information shows in highlighted boxes at Moving each corner of the display: Screen The destination waypoint Bearing to the destination waypoint Map scale Range to the destination waypoint The moving map screens represent graphic views of your navigation progress. Your present position is indicated by the airplane symbol near the center of the display. -
Page 32: Goto A Waypoint In Pan Mode
GOTO a Waypoint in Pan Mode Creating a Waypoint in Pan Mode “Pan” selected, press Pan feature. Move the crosshair with the arrow keys. When the crosshair touches the edge of the map, the map will redraw to continue panning in the desired direction. -
Page 33: Zooming In Or Out
While using the Panning feature, you can change the Zooming In or Out viewing scale of the map While using the Panning feature press to display the Pan Zoom options. Press the select “Quit,” “Zoom,” or “Pan.” With Zoom highlighted, press the Zoom feature. -
Page 34: Auto Zoom
Auto Zoom In the NAV mode, an HSI display is available to show your HSI Display track, cross track error, and desired track. Press the buttons to adjust the CDI resolution. Cross Track Error Distance Cross Track Direction To Steer The auto zoom feature changes the moving map scale automatically, adjusting the map scale to zoom in... -
Page 35: The Route Screen
The Precedus can store up to 20 reversible trip plans or The Route Screen “routes” in memory. Each route can consist of up to 30 waypoints using either those you create or those from the built-in waypoint database. An important feature of the Precedus is its ability to locate... -
Page 36: Creating User Waypoints
The Precedus allows you to create up to 1,000 of your own Creating User waypoints, each with a 6-character name you choose. -
Page 37: Getting Waypoint Information
Function Reference section. Getting Use the information (INFO) function anytime to get Waypoint information on waypoints in the Precedus‘s memory, Information including waypoints you have created. A listing of available information is included in the Waypoint Database section. -
Page 38: Information About Other Waypoints
You can also get information about any other waypoint in Information About Other memory by using the GOTO function together with the Waypoints waypoint information function. The waypoint information function also works with the Information About nearest function. This allows you to quickly get information Nearest about any of the waypoints nearest to your present position. -
Page 39: Creating A Route
The ability of the Precedus to store multiple leg flight plans is Navigating Multiple very useful. Once you set up a route, you can navigate the plan Flight Plans in forward or reverse. You can also edit a route you have created, or select any waypoint from a route and navigate directly to it, skipping other waypoints and legs of the trip. -
Page 40: Changing A Route Waypoint
When you finish inserting waypoints into the route, select “DONE” with the buttons and press the button then in the same way select “QUIT” to complete route editing. Remember, you can always change, add, or delete route waypoints later. When you finish with the first route, you can immediately create another. -
Page 41: Adding A Route Waypoint
You can add waypoints to any route. Add waypoints to a Adding a Route route by inserting them into the route at the proper location. Waypoint Each time a change is made, “DONE” is highlighted. When waypoints are changed as desired, press complete route editing. -
Page 42: Deleting Route Waypoints
To delete waypoints from a route, scroll through the route Deleting Route screen pages to select the route that you wish to delete Waypoints waypoints. Then, select “EDIT” as if creating a route. Deleting waypoints from routes will not remove them from the waypoint database. -
Page 43: Fixed Map
Only one route can be “started” or active at any time. You can navigate the route in either direction, depending on your present position. If your present position is at the last waypoint in the route, you could use this last waypoint as the point of origin by selecting “REVERSE.”... -
Page 44: Resuming A Route
Resuming a Route While navigating a route, you may wish to bypass one or Route “Direct To” more waypoints and proceed directly to a destination waypoint. The route “Direct To” feature allows you to do this. You can now navigate directly to the desired destination waypoint, bypassing previous waypoints in the route. -
Page 45: Creating An Approach Route
The Precedus allows you to setup an approach route using Creating an Approach the established approach waypoints. Route The cursor must be below the desired airport and at the last entry for your flight plan. Inserting an approach automatically removes the airport identifier and inserts the approach waypoints. - Page 46 “START” with Select “NORMAL” and press activate your route. The Approach Monitor feature is for pilot information only. Your Precedus may not be used as the primary navigation device for an IFR approach. to insert the approach .
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Page 47: Function Reference
This section provides detailed information on the functions you can select from the Main Menu. The Main Menu gives you access to functions that modify the operation of your Precedus and the way navigation information is displayed. The menu options allow you to customize the to best suit your navigation requirements. -
Page 48: The Main Menu
Screen/Light - (Page 57) Control settings for display backlight and contrast, status light programming, and power light programming. Time and Place - (Page 58) Contains seed position and current time settings including UTC differential. System Setup - (Page 58) Controls operation mode, either of the two serial ports for interface with external devices, and the number of NAV pages shown. -
Page 50: Pilot Checklist
Checklist your flight. To help with your workload and increase your safety, the Precedus includes a menu item to store up to four Pilot Checklists. There is a predefined list of items that you can select for viewing on each checklist. -
Page 51: Edit An Existing Checklist
Now, for the next item. With “INS” highlighted, press . Select the desired item with the buttons and press Continue until you are finished selecting items and then use the buttons to highlight “QU” (Quit) and press Edit an While viewing the desired Checklist, Existing press the buttons to move... -
Page 52: Pilot Checklist Options
The following list shows the options available for you to Pilot Checklist select from for the Pilot Checklist function Options 1. Activate Flightplan 2. Alternate Air Check 3. Alternators Check 4. Alternators On 5. Alternators Off 6. Altimeter Setting 7. Avionics 8. -
Page 53: Map Setups
This option controls the type of waypoints that show on the Map Setups moving map screens, the size of the text, whether or not a Route Path or Airspaces are shown, and the orientation of the moving map. The pages available in Map Setup include Misc Setup, Aviation Wpts, Airspaces, Road Data, City Wpts, and User Wpts. -
Page 54: Aviation Waypoints
Aviation Waypoints Airspaces Press to highlight “Ident Zoom Limit.” Press distance from your position that waypoint identifiers will be displayed. Set the units (nm, mi, or km) in the DISPLAY UNITS menu item in the Main Menu. Press to highlight “All Wpts.” Press to select “ON”... -
Page 55: Atc Ring
ATC Ring User Wpts the unit of measure you choose using the “DISPLAY UNITS” setting described later in this section. Press to highlight the Time Buffer value. Press the value. The Time Buffer contains the travel time (based upon current track and speed) from the airspace border where you will be alerted. -
Page 56: Road Data
The City database in Map Setup allows you to show the location and name of cities on the map pages of your Precedus. All Cities - Choose ON or OFF. Choose ON to display the cities and city names on the map pages. -
Page 57: Alerts
This option controls whether or not and when the Precedus Alerts should alert you if you approach special use airspace or arrival at a destination. You can also set up your CDI resolution or Parallel Track distance, as well as alerts for these features. -
Page 58: Display Units
CDI. Press to select the distance off your course where the Precedus alerts you. The number you select is the distance from the center to the left or right side of the CDI scale in the NAV function. Press highlight the ON/OFF option. - Page 59 To disable magnetic variation, select “TRUE.” All course headings will be referenced to true north. The Precedus automatically sets magnetic variation to 0 degrees when you fly above 70 degrees north or south latitude. It is not necessary to disable automatic magnetic variation as you travel north or south to high latitude regions.
- Page 60 Map Datum Type and then press The following list shows the GPS map datums contained within the Precedus. Each map datum represents a mathematical model of the earth used for the purpose of establishing precision in charting various areas of the earth.
- Page 61 Datum Name European 1950 Sicily European 1979 Gandajika Base Geodetic Datum 1949 Hjorsey 1955 Indian (Thailand/Vietnam) Indian (Bangladesh/India/Nepal) Ireland 1965 Kertau 1948 Liberia 1964 Luzon Massawa Merchich Minna Nahrwan North American 1927 Conus North American 1927 Alaska North American 1927 Canada North American 1927 Cntrl.
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Page 62: Timers
The Precedus includes timers for countdown and flight time. Timers Use this option to count elapsed time for as long as 60 minutes.The timers can run “in the background” while you navigate and will not interfere with unit operation. As the countdown progresses, the screen shows “RUNNING.”... -
Page 63: User Waypoint Management
This option allows you to edit or delete waypoints you have User Waypoint created (user waypoints). Manage- ment The Track History function allows you to store a record of Track History navigation progress in memory. The stored record consists of a series of track points, each containing your position at the time the point was stored. - Page 64 “USED” shows you the percentage of memory space used for track point storage. If you wish to empty the memory of track points, select “CLEAR?” and choose “YES.” Press when you have completed your choices. When track history is “ON,” points are stored in memory.
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Page 65: Screen/Light
2. Press to reach the STATUS LIGHT selection. The selected choice gives the conditions when the status light on the front of the Precedus will light. Press the choose your status light options. Press to reach the POWER LIGHT selection. -
Page 66: Time And Place
Place and local times. It is necessary to enter the time and place the first time the Precedus is switched on; this is called the “Seed Position.” Time and place information you enter is stored in memory and need not be entered again. However, it... - Page 67 Select “SIMULATOR” only when you wish to use the built-in simulator to practice navigating with the unit. The Precedus is equipped with a serial data port for communication with external serial devices. This option controls the function of each port. Your choices include: None NMEA 183-1.5...
- Page 68 Precedus/PC Interface Kit. Consult kit documentation for instructions on proper serial port settings. The Precedus allows you to customize not only the content of the Navigation function pages, but also the number of information pages. These pages are the displays of navigation information, such as ground speed, altitude, CDI, distance to a waypoint, etc.
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Page 69: General Info
Nav Info & Moving Map Moving General The General Info function tells you about the Databases that Info you have stored in the Precedus and other system information. In General Info, press the available pages. Databases Info 1 Info 2... -
Page 70: System Info
Density Altitude The System Info page shows your Precedus software version and date, database type, amount of memory in the database, and the GPS version. This information is for reference only and should be used whenever you contact a factory service representative. -
Page 71: True Air Speed
True Air Speed Wind Direction/ Speed and Head Wind Speed Highlight Indicated Altitude value (IALT) using value using altitude indicated on your aircraft instruments. Change the units (feet or meters) in the DISPLAY UNITS menu. Highlight the Barometer (BARO) value using , change the value using... -
Page 72: Fuel Flow
Fuel Flow Default The Precedus is shipped from the factory with menu options Settings set as shown here. Note that where a range exists for a setting, the upper and lower boundaries are shown with the default setting shown as bold. These menu option settings are stored in memory and remain in effect until you change them. - Page 73 Option Description Track History Track History: Strategy: Save By: Interval: Used: Clear? Arrival Alerts Alert Message: Distance: Airspace Alert Message Alerts Dist. Buffer: Time Buffer: CDI Scale Alert Message: CDI Scale: Magnetic Option: Variation Setting: Countdown Total Time: Time Display Units Distance: Altitude: Lat/Lon...
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Page 74: Waypoint Database
Waypoint Database The Precedus provides an extensive built-in database of Database Structure waypoint information to aid the navigator. Waypoints in the database are divided into 5 categories. This structure allows you to easily select a waypoint as a destination, search for waypoint information, search for nearest waypoints, or display waypoints on moving map screens. - Page 75 Bearing and distance from present position Operating frequency Lat/Lon coordinates DME available Class (high/low/terminal) Weather broadcasts NDB Waypoint Information Bearing and distance from present position Operating frequency Lat/Lon coordinates DME available Class (high/low/terminal)
- Page 76 INT Waypoint Information Country Bearing and distance from present position Bearing from present position Lat/lon coordinates USER Waypoint Information Bearing and distance from present position Distance from present position Lat/Lon coordinates...
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Page 77: Tutorial
Get comfortable and take some time to follow the instructions in this section to “fly” with the Precedus. As you navigate with the simulator, feel free to experiment with the features as much as you like. -
Page 78: Starting The Simulator
Starting the Simulator to turn on the Precedus. 1. Press 2. Press the key again to reach the main menu. 3. Press the “SYSTEM SETUP.” Press select the option. 4. Press the Simulator mode. 5. To set your Ground Speed, press the... -
Page 79: Preparing For The Trip
This tutorial presents instructions to set up either kind of trip. It may be helpful to first navigate direct to a destination before setting up a route to travel. The Precedus‘s simulator uses your present position as the Originating the Trip point of origin for the trip unless you have already used the unit to navigate a route. -
Page 80: Navigating The Trip
Navigating the Trip No GPS altitude value shows on the display when you are in Simulator mode. Looking Around In the Navigation function, your track shows directly on course with no deviation from the bearing to the destination. The Lat/Lon coordinates change to reflect your present position to the nearest hundredth of a minute. -
Page 81: Getting Waypoint Information
While you are enroute, you may want to Getting Waypoint get information about your destination Information waypoint. You can check for fuel availability, runway lengths and surface, communication frequencies, and more. With the moving map screen displayed, press the button to get information about the destination waypoint. -
Page 82: Checking Alert Settings
You can get information about any waypoint in the Precedus’s built-in database. Follow the steps in “Assigning a Direct Waypoint” earlier. With the desired waypoint name showing on the display, press the information shows on the screen, without the waypoint being assigned as a destination. Press again to return to the previous function. -
Page 83: Approaching The Destination
Select the AIRSPACE ALERTS function on the Main Menu. The “AIRSPACES” choice should be set to “ON.” The Precedus can also alert you with a message on the display as you approach your destination. Set the WPT ARRIVAL selection to “ON.” Set the distance from the destination where you wish to be alerted. -
Page 84: Setting Up A Route
You can stop travel at any time by adjusting ground speed to 0. The Precedus can store up to 20 routes or multiple leg trips Setting Up a Route of up to 30 waypoints each. After you create a route, you can edit it to add or change waypoints anytime. - Page 85 2. Use the “INSERT” to begin inserting waypoints. Press You can select waypoints to insert based on type, identifier, or name. 3. The arrow cursor points to the first line in the route for the first waypoint. Press waypoint type (ARPT, VOR, NDB, INT, or User) and then the first character of the waypoint.
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Page 86: Starting A Route
arrow symbol appears to the left of the waypoint name. Starting a Route You can navigate any route you choose, but only one route can be “Started” or active at any time. You can navigate the route in either direction, depending on your present position. For example, if your present position is at the last waypoint in the route, you could use this last waypoint as the point of origin by selecting “REVERSE.”... -
Page 87: Navigating A Route
Set the ground speed to a realistic rate of travel. During route Navigating a Route navigation, the arrow marker on the route screen points to the current “TO” waypoint. Scroll through the navigation screens to check your progress on the route. While navigating a route, you may find it necessary to alter Route “Direct To”... -
Page 88: Track History
The Precedus can store a record of your trip navigation Track History progress in memory. The record consists of a series of track points, each containing your position at the time the point was stored. You can store up to 2,000 track points. Track point storage can be activated or deactivated any time you navigate. -
Page 89: Navigating Multiple Flight Plans
5. Select a storage interval for the method you selected. If you selected Distance, the “INTERVAL” will be in nm, sm, or km. If you selected Time, the “INTERVAL” will be in hours and minutes. With the track point history screen items properly set, press begin recording. -
Page 90: Navigating To A Nearest Waypoint
The Precedus can help you select and navigate to waypoints Navigating to a near your present position. This feature could be valuable if Nearest you had to land the aircraft quickly. For the purpose of this Waypoint tutorial, imagine that the weather conditions were becoming worse and you wish to land immediately. -
Page 91: Conclusion
This tutorial has explored many of the Precedus‘s features. If Conclusion you feel comfortable using the unit, switch it off and then back on to cancel the simulator. The unit is ready for actual navigation. If you need more time to become comfortable operating the Precedus, repeat this tutorial. -
Page 92: Troubleshooting
Troubleshooting This section contains information to troubleshoot the Precedus when improper operation is observed. The following table lists possible problems you could encounter while operating the unit. Examine the possible causes of the problem and take the action listed to correct the trouble. If you cannot correct the problem, contact your dealer. - Page 93 Problem Unit does not power on No GPS signal reception Display too dark or too light — characters hard to Search for nearest waypoints reveals too few or wrong types of waypoints Possible Cause If using battery: Dead battery If using AC power supply: bad power supply Obstructed signal...
- Page 94 Problem Wrong types of waypoints show on moving map screens Position fix seems inaccurate Wrong bearing and track values Airspace boundaries missing from moving map Line representing route path on moving map is missing Possible Cause Incorrect selection of waypoint types to show on moving map screens Incorrect Map...
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Page 95: Glossary Of Navigation Terms
Glossary of Navigation Terms Altitude (GPS ALT): Altitude, as calculated by the Precedus, based upon a mathematical model of the earth’s surface curvature. A substantial difference between this altitude value and altitude referenced to sea level may exist. Automatic Terminal Information Service (ATIS): Recorded information about weather and other conditions at an airport, periodically updated when conditions change. - Page 96 Icon: A symbol shown on the display depicting present position. The icon is shown as a symbol of an airplane on the Precedus‘s moving map screens. Identifier: A name, typically abbreviated, assigned to a waypoint. The identifier may consist of numbers and alpha characters, up to six in length.
- Page 97 Map Datum: A mathematical model of the earth used for the purpose of creating navigation charts and maps. The Precedus contains the set of datums listed in Appendix B. Meter (m): A metric distance measurement equal to 39.37 inches.
- Page 98 Second: 1/60th of a minute of a degree. Seed Position: A latitude and longitude position fix approximately equal to the current position that the Precedus uses to determine the location of available satellites from which signals may be received.
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Page 99: Display Care And Cleaning
Display Care and Cleaning Your new Precedus GPS has a hard coating that has been applied to the display screen. Despite this coating, care must be taken when cleaning the display screen. To remove stains,... -
Page 100: Battery Care
Leave the Precedus on until the battery is completely discharged and then charge the battery to recondition it. A special battery charger/reconditioner available for the Precedus will accomplish this automatically. - Page 101 Index Airport..... . . 66 Airspace ....74, 86 Alert .
- Page 102 Status ....14, 15, 20 Version....62 HSI Display....26 Identifier Size .
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Page 103: User Waypoint
Setup ....76 Start ..... 78 Starting. -
Page 104: Technical Specifications
Precedus Features Technical Specifications ° ° ° ° ° Standard Accessories Optional Accessories... - Page 105 © 1997 by II Morrow Inc. 2345 Turner Road S.E. U.S.A. Phone (503) 581-8101 1-800-525-6726 In Canada 1-800-654-3415 FAX (503) 364-2138 Part #560-0110-04 Rev. A...
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