DEFENSE ADVANCED GPS RECEIVER (DAGR)

DEFENSE ADVANCED GPS RECEIVER (DAGR)
PLGR DAGR

REFERENCES TO 31R4-2PSN13-8-1 TM ..

AGENDA Purpose Characteristics / Capabilities and Features
Component and Display Overview Battery Installation Powering on DAGR DAGR Setup & Modes of Operation Acquiring Current Position Waypoint Entry Navigation Zeroizing the DAGR Conclusion

ENABLE THE USER TO OPERATE THE AN/PSN-13,
PURPOSE ENABLE THE USER TO OPERATE THE AN/PSN-13, DEFENSE ADVANCED GLOBAL POSITIONING SYSTEM RECEIVER TO FIND POSITIONAL DATA AND NAVIGATE FROM POINT TO POINT Three Objectives: Operate the PLGR Find your Position Navigate from one point to another

CHARACTERISTICS Provides Position, Velocity, and Time (PVT)
Includes battery pack and internal antenna with options for external primary power and antenna ALL WEATHER OPERATION: PLGR will operate in: Temperatures -4 to 158oF 0 – 100% Humidity -1312 to 29,856 feet in Elevation Size driven by usage with gloves and MOP gear

Capabilities and Features
All satellites in view are tracked using 11 channels Navigation using up to 10 channels L1: Coarse/Acquisition (C/A), Precise (P), and Encrypted P (Y) code capability L2: Precise (P), and Encrypted P (Y) code capability Accepts differential GPS signals Handheld or Host Platform mounted unit Signal acquisition using up to 12 channels

Backlit display and keypad for night operation Operates in all weather, day or night Produces no signals that can reveal your position Automatically tests itself during power up Can operate on +9 to +32 volts direct current (V DC) external power Can perform area navigation functions, storing up to 999 waypoints Stores up to 15 routes with up to 1000 legs for each route

Resists jamming Resists spoofing when crypto keys are installed Sealed against dust and water to a depth of 1 meter (3 feet) for 20 minutes Interconnects with other electronic systems Uses quick disconnect connectors and fasteners to allow easy unit replacement Compatible with night vision goggles (NVG) and does not cause blooming Uses internal compass to compute track and ground speed when moving at or below 0.5 meters per second.

Unpacking DAGR Unpacking Checking Unpacked Equipment Packing Container
Display Surfaces Keypad Connectors Inspect Equipment Check Equipment against packing List Check for modified equipment Repairs not covered by manual

Location of Components
Integral Antenna Display J4 power connector J3 external antenna connector Keypad Handle – accommodates for NBC gloves when soldier is in MOPP Level 4 Power Battery – source of power when the unit is turned on ANCD / SINCGARs Connector – to download atomic time to connected ANCD or SINCGARs RT (using KOI-18 fill cable) Display Integral Antenna – rotate up to better receive satellite signals Keypad – will go over on next screen MEMORY BATTERY – the memory batter is located on the bottom of the PLGR and is used to save data such as waypoints, routes, setup, and almanac data. If the memory battery is missing or an alert has come up stating low memory battery your data will be lost when the PLGR turns off. When replacing the memory battery your data will be LOST unless you do the following. Turn on the PLGR. While the PLGR is powered up, replace the memory battery. This allows the PLGR to save its data using the primary power source.

Location of Components
J1 Serial Data I/O Port J2 Serial Data I/O Port Memory Battery and Cover Primary Battery Pack

Display Indicators Lighting Status Indicator
Primary Battery Status Indicator Function Key Labels (F1,F2,F3)

Display Windows DAGR display contains three windows
Only Fields in windows may be selected

Display Windows Page Window Majority of Display Interaction
May contain read only data or can be modified data May contain multiple horizontal or vertical views

Display Windows Tool Bar Window Three Display Regions
Display Labels for function Keys

Display Windows Message Window Operator Notification Categorized as
Notes Alerts Cautions Warnings

Display Windows Pop-up Window Displayed over Page Window Have Menus
Allows Editing Help Text

DAGR Editors List Editors Text Editors Number Editors

Keyboard Operation Keypad is used to enter data Keys have two labels
Function Keys There are four primary buttons used to access different menus on the PLGR: MENU, WP, POS, NAV If at any time you find yourself in a menu you are not familiar with, you can press the MENU, WP, POS, or NAV key to exit back to a main menu screen. MENU – allows you to update parameters in the PLGR WP – Waypoint and Route Menus POS – Displays current information on your position and satellites (SV) NAV – Allows you to choose from 4 methods of navigation from point to point. The MARK key allows the user to save his current location as a Waypoint. The next waypoint in sequential order not used will be chosen unless the operator changes it prior to saving the Mark. NUMLOCK – works great when entering grids in the waypoint menu. When numlock is ON an “N” is displayed in the lower right corner. When numlock is off, a “P” is displayed in the lower right corner. When using numlock, make sure to turn it off once you’ve entered your grid. Function keys such as WP, POS, NAV, MARK, ARROWs do not work when NUMLOCK is on. ARROW KEYS – Using the left and right arrow keys allows the user to scroll through options on the current page. Using the up and Down arrow keys allows the user to select or change the blinking option on the page. In order to scroll through pages within menus, use the right or left arrow until you see a set up arrows next to the “P” in the lower right corner. Then press the up or down arrow to scroll through the pages. You can also scroll through the four main menu pages by pressing the specific menu button consecutive times. (example: press the POS key one time, the first page of POS is displayed. Press the POS key a second time, the second page of POS is displayed)

Keyboard Control F1/In Function Key F2/Out Function Key
F3/Status Function Key

Keyboard Control PWR/Quit Key POS/page Key Brightness/Menu Key
WP/Enter Function Key Cursor Control Keys

DAGR Batteries Batteries Primary Battery and Memory Battery
Types of Batteries Lithium AA 1.5 volt; Primary L-91; Battery Life 16.5 hours Alkaline AA 1.5 volt; Primary W-B-101; Battery Life 11.5 hours Alkaline AA 1.5 volt; Primary 714–4/5; Battery Life 7Hours Nickel Metal Hyride AA 1.5 volt; Primary; NH-15; Battery Life 10 Hours Lithium ½ AA 3.6 volt; Memory LS14500; Battery Life 8 Months Note Remove all batteries before storing Power Battery - is a BA-5800 (12VDC lithium) or 8 x AA batteries in a battery holder. Memory battery – is used to maintain power to the PLGR’s memory when primary power is removed. Data saved includes waypoints, crypto keys, setup, and satellite information. The LS14500 (3.6vdc) lithium battery is used as the memory battery. This battery should be replaced annually. CAUTION: Even though it is the same size as a AA battery, do not attempt to use a AA battery. These batteries are non-rechargeable and may explode if external power attempts to recharge them.

Primary Battery Installation
WARNING – Lithium batteries can explode Reverse polarity can cause damage to the battery and receiver CAUTION – Battery Types Do not mix battery type DAGR Used for 1st Time DAGR Resets to Default Note No Battery Charge

a. Ensure power to the DAGR is off. Hold unit firmly upside down with the battery pack facing up. Push or pull latch located on the battery pack to release battery pack. Lift up on battery pack and remove from unit.

e. If batteries are already installed, pull out on the battery removal strap to remove batteries from the battery pack. Dispose of batteries properly f. Position the battery removal strap into the channel of the battery pack before installing new batteries. g. Install new batteries and ensure correct polarity installation for each battery (marked on battery pack). h. Prior to installing the battery pack, inspect the battery pack gasket for damage or dirt. Lubricate or replace gasket if necessary. Ensure battery removal strap is not protruding from the battery pack. I. i. To install new battery pack, position tab on battery pack in slot on the DAGR. j. Close battery pack against DAGR until battery pack is engaged.

Memory Battery Installation
Warning Lithium batteries can explode Reverse polarity can cause damage to the battery and receiver Caution DAGR Used for Time DAGR Resets to Default Note Battery Types

Memory Battery Installation
a. Ensure power to the DAGR is off. b. Place unit upside down on non-abrasive surface with the memory battery cover facing up. c. Use flat blade screw driver to loosen three captive screws securing memory battery cover, then remove cover from unit. d. Remove the memory battery and properly dispose of battery. e. Prior to installing the memory battery cover, inspect the memory battery cover gasket for damage or dirt. Lubricate or replace gasket if necessary. e. Prior to installing the memory battery cover, inspect the memory battery cover gasket for damage or dirt. Lubricate or replace gasket if necessary. f. Install the memory battery. g. Install memory battery cover and tighten three screws.

Powering on the DAGR a. Push the (PWR/QUIT) key to turn the DAGR on.
b. The power-on status message shows for two seconds, then time out if the following are true. • Self-test has passed • DAGR does not need initialization If not, push the (WP/ENTER) key to acknowledge.

Powering on the DAGR c. If a CV key, GUV key, or SV code condition exists, acknowledge messages accordingly. d. DAGR displays the SV Sky View page, then automatically switches to the Present Position page when current position is acquired. e. If keypad/display lighting is required, toggle lighting on and off by pushing and holding the (Bright/Menu) key. f. Adjust keypad/display brightness level by simultaneously pushing and holding the (Bright/Menu) key and using the (up/ down arrow) keys

Mode of Operation • Continuous - Tracks satellites to produce a continuous PVT solution, and uses the most power. • Fix - Tracks satellites to produce a current PVT solution, then automatically transitions to Standby mode after a position fix is obtained. • Standby - Operates at reduced power and does not acquire and track satellites, but performs all functions that do not require satellites. • Other available modes - Average, Time Only, Rehearsal, Test, and Off.

Select Operating Mode Perform the following procedure to select the operating mode a. From any display except a message pop-up, push and hold the key until the Present Position page is displayed. b. Push the key. c. Highlight Select Op Mode, then push the key. d. Highlights the desired operating mode, then push the key.

Select Operating Mode (Continued)
Display returns to the Present Position page displaying the selected operation mode.

Receiver Setup (MANUAL INITIALIZATION)
If the DAGR has been moved between two different geographical locations and is not performing correctly, the DAGR may need to be initialized according to the DAGRs current location. The following procedure describes how to initially set up the DAGR Present Position page fields and edit field content when: • DAGR is having difficulty obtaining a position fix. • Datum is mismatched with navigation waypoints. • Datum does not match the geographical map used. Serial Data Port (J2) - connect to a PC transfer setups, almanac data, waypoints, routes, initialization data and satellite data emulate PLGR screen on to a laptop or PC External Antenna (J3) – helmet, vehicle or aircraft antenna External DC Power Input (J4) – vehicle power or the AC-to-DC power adapter Caution: Before using external power, the PLGR power battery MUST be removed. Also ensure the grounding wire is attached to the battery post and not to the vehicle body for grounding. Otherwise, the power or memory battery may explode.

Receiver Setup (Manual Initialization)
a. Power the DAGR on. b. Push and hold the key to access the Present Position page. Serial Data Port (J2) - connect to a PC transfer setups, almanac data, waypoints, routes, initialization data and satellite data emulate PLGR screen on to a laptop or PC External Antenna (J3) – helmet, vehicle or aircraft antenna External DC Power Input (J4) – vehicle power or the AC-to-DC power adapter Caution: Before using external power, the PLGR power battery MUST be removed. Also ensure the grounding wire is attached to the battery post and not to the vehicle body for grounding. Otherwise, the power or memory battery may explode.

c. Select Datum (1) From the Present Position page, push the key. (2) Highlight Select Datum, then push the key (3) Scroll using the and keys to the geographical map being used, then push the key. (4) Display returns to Present Position page with datum change made.

d. Select Coordinate/ Grid system (1) From the Present Position page, push the key. (2) Highlight Select Coord/ Grid , then push the Key (3) Scroll using the and keys to select the Coord/ Grid system to the geographical map being used, then push the key. (4) Display returns to Present Position page with Coord/ Grid system change made.

e. Select units of measure or references (as required) (1) From the Present Position page, push the key, then highlight the Elevation field, then push the key. (2) Highlights Select Elev Units, then push the key. (3) Choose the appropriate unit of measure, then push the key. (4) Display returns to Present Position page with change made. (5) Edit Ground Speed and Track fields in similar manner f. Configure initialization data (position, time, speed, and track).

Receiver Setup (Manual Initialization) NOTE: Entering data may not be necessary if current almanac is available (1) From the Present Position page, push the key, then use the keys to scroll through and view fields as desired. If required, edit field content to configure initialization data for current geographical location. (2) When desired field is highlighted, push the key. An editor appears.

(3) For list editors, select the desired field content and push the key. For text or numeric editors, use keys and standard alphanumeric editor functions. Push the key to save numeric changes, or select SAVE when finished with text changes. (4) Display returns to the Present Position page with changes made to field content.

d. Select Coordinate/ Grid system From the Present Position page, push the key. Highlight Select OP Mode, then push the Key High light Continuous, then push the key. If a message is displayed instructing the operator that initialization is required, push the key.. Display returns to Present Position page with Coord/ Grid system change made.

h. Observe Present Position page. When attempting to acquire satellites after the signals have been blocked for a period of time (when exiting a building or cave), acquisition time may be improved by momentarily cycling the unit to STANDBY mode and then back to the previous operating mode. NOTICE!!!

If Present Position page is not already displayed, push and hold the key until Present Position page is obtained. (2) The display position data fields stop blinking when the DAGR has obtained a current position fix. This current position data replaces any data entered manually. (3) DAGR is initialized with information corresponding to the current geographical location.

Receiver Setup (Manual initialization)
i. Observe Sky View (SV) page. (1) If Present Position page is not already displayed, push and hold the key until Present Position page is obtained. (2) Repeatedly push the key until SV page is obtained. Satellite acquisition can be monitored from this page.

Acquire Current Position
The DAGR obtains current position by simply turning the DAGR on with an open view of the sky. While acquiring satellites, DAGR displays the SV Sky View page. After satellites are acquired, DAGR automatically transitions to the Present Position page with current position coordinates shown. An indication of when the DAGR has obtained current position is provided by: Position data fields of the Present Position page remain solid black text and do not blink. On the SV Sky View page, solid black horizontal bars indicate satellites being tracked and data is collected; and Navigating shows at the top of the display.

The POS page set contains commonly used pages and are described in the upcoming slides: Use the key or key to scroll pages.

PRESENT POSITION PAGE: Displays present position coordinates, coordinate and grid system, datum identifier, current operating mode, estimated horizontal error, figure of merit, elevation, elevation reference, ground speed, track, estimated time error, time figure of merit, time and date, MAGVAR, magnetic model year, and operator ID. Scroll the page vertically to view all field data.

Situational awareness Page NOTE: Range circles are shown on display when a vector map is loaded into the DAGR. Provides a geographical display of relationships between present position, track, waypoints, routes and alerts . Includes a North reference indicator, ground speed, track, position error data, and range scale. 24 Satellites in 6 orbits, 6-9 are in view SATELITE TRACKING – 1 SV will give you accurate time. 3 SVs are used to calculate your location. A 4th SVs will give your location and elevation. Your PLGR can track up to 5 SVs. It uses 4 SVs at one time, keeping the 5th in reserve in case one goes out of sight. The PLGR will automatically choose the best 5 SVs to track. You can de-select SVs manually if you choose. See the manual for instructions on how to do this Line of Sight System Note: SV = Satellite Variables received

Navigation pointer Page Displays a pointer directing the operator towards the display waypoint. Also displays current navigation method, destination waypoint number and name, azimuth, and range information. ..

IMAGE VIEWER PAGE: Displays, images or maps including current position (shown at center of display), landmarks, map objects, and selected waypoints. The operator uses zoom, pan, waypoint operations, and map selections to obtain desired view. The current position map is automatically displayed when loaded. Press 1 ON BRT to Turn the PLGR on. A Status Screen will flash on for a second then the last known position.

SV Sky View Page Displays status information on tracked satellites with the current operating status shown at the top of the display. Numbers inside black circles indicate satellites in use by the DAGR, with corresponding number at left side of display. A bar graph - indicates strength/ code status. Long black bar - signal strength/ ephemeris data. A thick black bar -receiving Y or P code. If the DAGR is unable to display satellite information, no bars appear at all. ADJUSTING BACKLIGHTING – To increase brightness press the ON and UP arrow simultaneously. To decrease brightness press the ON and DOWN arrow simultaneously.

WAYPOINTS A Waypoint is position information used to navigate through terrain, define routes or navigation alerts, mark present or remote positions, or marking observation points and landmarks. STS - self test summary GPS - good or <3 SV Note result of self-test Antenna and power source

Mark Present Position (WAYPOINT)
a. From any display, push and hold the key. b. Select MARK a WP, then push the key. c. The MARK PRESENT POSITION message is displayed. Manual reset when installing a new battery or edit fora used power battery

Mark Present Position (WAYPOINT/CONTINUED)
d. Push the key to store the marked waypoint e. A waypoint stored message is briefly displayed. f. Push the key to acknowledge, or just let display time out. g. Display returns to previously viewed display. … The PLGR uses the most power when acquiring and tracking satellites. Changing the mode to standby (STBY) saves battery power. There are two ways to change to standby mode. press and hold the POS key. using the MENU, SETUP page a. Press the MENU key (1) Move the cursor and select the SETUP option (2) press right-arrow key to the MODE selection. (3) press down-arrow key to scroll down to standby (STBY) mode is displayed.

Create a New Waypoint a. From any display, push and hold the key.
b. Highlight Create New WP, then push the key. c. The Waypoint Editor page is shown. The first unused waypoint is populated with current position information (if tracking satellites). Unless saved in memory using a good memory battery, the PLGR must be properly setup to receive accurate data. There are a total of 11 setup screen. We will only setup 5 screens for our purposes.

Create a New Waypoint (Continued)
d. Revise information in all fields as necessary. e. Push the key. f. Highlight Save and Exit, then push the key. g. After the waypoint is stored, a waypoint stored message is briefly displayed. If the PLGR is really lost, or if the acquisition is taking over 15, then initialize the PLGR.

Create a New Waypoint (Continued)
h. Push the key to acknowledge, or just let display time out. i. Display returns to the Waypoints page with the new waypoint information saved and highlighted Operating Mode (w/ mode description) CONT (Continuous) – the PLGR acquires and continues to track up to five satellites. Changes in position and velocity are continuously reported. This mode allows full and accurate position, time, track, speed, and steering information. This mode uses the most power. FIX (Quick Fix) – the PLGR acquires satellites and determines the present position, then automatically changes to STBY mode. This minimizing power usage. AVG (Averaging) – for surveying applications. The PLGR must not move. High accuracy. Improve performance in very low signal environment TIME – gives time for operator-entered or confirmed position (for SINCGARs or ANCD) STBY – PLGR accepts and displays keypad data, but does not acquire or track satellites. Used to reduce power consumption while reviewing or entering waypoints, setup values, etc. 2dTNG, 3dTNG & RHRSL – PLGR does not track satellites in these modes. It generates simulated position and navigation data for a moving scenario Satellite-Type mixed - susceptible to jamming and spoofing All-Y - uses encrypted signals only, not all SVs radiate an encrypted signal Note: SV = Satellite Variables

NAVIGATION (Operation)
Current position is necessary before accurate navigation can be accomplished. The GOTO WP function uses the DIRECT TO navigation method. Navigation information to the selected destination waypoint is automatically displayed using the NAV Pointer page. Position display format MGRS–New = Military Grid Reference System – New L/L-dm = Latitude/Longitude in degrees and minutes L/L-dms = Latitude/Longitude in degrees, minutes, and second Distance Units Metric - meters, kilometers, km/hr English - feet, miles, mph Nautical - yards, nmi, knots Elevation Units meter feet Elevation Reference MSL (Mean Sea Level) DTM (Datum) Angle Units Deg (Degrees) Mil- (Mils) Angle Reference Mag (Magnetic) Grid True

Waypoint GOTO Navigation
a. From any display except a message pop-up, push and hold the key, the Present Position page is displayed. b. Push and hold the key. c. Highlight GOTO a WP, then push the key. d. Scroll through the waypoint name list using the keys to select the desired destination waypoint. Magnetic variation is the east or west difference between True and Magnetic north. Magnetic Variation Type Calc (Calculated) – the magnetic variation is calculated at the present position using the World Magnetic Model (WMM). Entr (Entered) - the magnetic variation direction and value is entered by the user Wp (Waypoint) -the magnetic variation is calculated at the “TO” nav waypoint Magnetic Variation Units Deg (Degrees) Mil-µ (Mils) Deg min (Degrees/minutes) Magnetic Model and Issue Date Example given is WMM 1995 Mil-µ is a Gunner’s mil where 6400 MILS = 360 degrees

Waypoint GOTO Navigation (Continued)
NOTE: For waypoint selection sorting options, push the key. Select desired option then push the key. Elevation Hold Mode automatic – the PLGR automatically enables and disables the elevation hold in conditions of good or bad satellite geometry. manual – EL* is displayed when there is bad satellite geometry Time Reference Zulu Local (with offsets) Local time is Zulu time minus 5 hours Error Display Format FOM (Figure of Merit) – a number of 1 thru 9 which represents an increasing degree of error. For example, FOM=1 represents positional error of < 25 meters + meters

Waypoint GOTO Navigation (Continued)
e. After waypoint selection, push the key. f. The DAGR automatically displays the NAV Pointer page. The top of the rotating compass dial indicates the current ground track. g. The display arrow points the azimuth to the destination waypoint. Move in the direction the arrow is pointing to navigate to the destination waypoint. DATUM Abbreviation or Code (w/ DATUM Name) Automatic Off Time Limit – the amount of time the PLGR stays on after a position fix is obtained. Used to save battery power. only enabled when battery power is being used. off 5 min 15 sec 20 min A datum is a surveyed line or point that ensures all maps within a series will correctly match when placed edge to edge. 52 map Datum sets are available within the PLGR. PLGR datum should match the map/chart your operating with Turn automatic timer off, there is no memory battery in the PLGR If the PLGR turns off during the class all setup settings, almanac data, satellite being tracked, and waypoints will be lost.

Waypoint Alerts Definition: Alerts are made up of one or more waypoints, and are used to notify the operator is approaching or leaving a point, line, or area of significance (e.g., radius distance from a waypoint, defining a line not to be crossed, mine field area). If the PLGR is really lost, or if the acquisition is taking over 15, then initialize the PLGR.

Waypoint Alerts (Continued)
Anchor – Circular area defined by a radius from a waypoint. Activates when outside a defined radius. Hazard – Circular area defined by a radius from a waypoint. Activates when inside a defined radius. Buffer Zone – Rectangular area defined by two waypoints. Prevents the user from entering a defined area. If the PLGR is really lost, or if the acquisition is taking over 15, then initialize the PLGR.

Corridor – Rectangular area defined by two waypoints. Prevents the user from exiting a defined area. Other alerts include – Area, Boundary Line/ Phase Line, Position Error, and Time/Date.

a. From any display except a message pop-up, push and hold the key, the Present Position page is displayed. b. Push the key twice to access the main menu. c. Highlight Waypoints/ Routes/ alerts, then push the key. 1st Screen Operation Mode & Position Error Zone Number & Zone Letter Grid Square & Coordinates Elevation 2nd Screen Time & Time Error (in nanoseconds) Current Date & Day of Week Ground Tracking Ground Speed Note: Must be moving for a track/bearing and ground speed 3rd Screen SVs on the left of the / are being tracked SVs on the right of / are being searched. # VIS = # of Satellite visible # GOOD = # of Satellites in “good” health out of those being tracked ALM AGE = ALMANAC AGE ALMANAC DATA - This is the information the PLGR stores in memory so the next time it is turned on it will know where to look for the Satellites (SV). Each SV broadcasts the complete constellation almanac once every hour. This does not mean that you will need to operate the PLGR for at least one hour to get a good almanac. The timing is staggered around the SV's so that almanac data can be collected at all times. The PLGR starts to download this data when it acquires the first SV. It is a lot of information and takes a while before the PLGR will indicate it has a one day old almanac.

d. Highlight ALERTS, then push the key. e. The ALERTS page is shown and displays all assigned alerts. Use the keys to view alert information. 1st Screen Operation Mode & Position Error Zone Number & Zone Letter Grid Square & Coordinates Elevation 2nd Screen Time & Time Error (in nanoseconds) Current Date & Day of Week Ground Tracking Ground Speed Note: Must be moving for a track/bearing and ground speed 3rd Screen SVs on the left of the / are being tracked SVs on the right of / are being searched. # VIS = # of Satellite visible # GOOD = # of Satellites in “good” health out of those being tracked ALM AGE = ALMANAC AGE ALMANAC DATA - This is the information the PLGR stores in memory so the next time it is turned on it will know where to look for the Satellites (SV). Each SV broadcasts the complete constellation almanac once every hour. This does not mean that you will need to operate the PLGR for at least one hour to get a good almanac. The timing is staggered around the SV's so that almanac data can be collected at all times. The PLGR starts to download this data when it acquires the first SV. It is a lot of information and takes a while before the PLGR will indicate it has a one day old almanac.

DATA CLEAR Data Clear can destroy mission critical data.
a. From any display except a message pop-up, push the key, the PRESENT POSITION page is displayed. b. Push the key twice to access the main menu. c. Highlight SYSTEM, the push the key. d. Highlight DATA CLEAR OPTIONS, then push the key. It’s much easier to mark and edit then entering a new waypoint # 3 is the next available waypoint number Pressing CLR/MARK saves current position as a waypoint Pressing ON/BRT cancels the marking operation

DATA CLEAR (Continued)
e. The clear data message is displayed. Select the desired data to be cleared using the keys. f. Push the key to confirm and perform the clear data function. g. Push the key to acknowledge the clear data passed message.

EMERGENCY ZEROIZE Emergency zeroize clears ALL mission critical data.
a. From any display except a message pop-up, push the and keys simultaneously. b. The ACTIVATE EMERGENCY ZEROIZE message is displayed.

EMERGENCY ZEROIZE (Continued)
c. Push the key to confirm and perform the emergency zeroize function. d. Push the key to acknowledge the emergency zeroize passed message. ..

ZEROIZE CV KEYS Zeroize CV keys clears CV key data only.
a. From any position except a message pop-up, push and hold the key, the PRESENT POSITION page is displayed. b. Push the key twice to access the main menu. c. Highlight RECEIVER SETUP, then push the key. Turn the NUM LOCK on right before entering the Grid Zone Designation Turn off the NUM LOCK right after the longitude and latitude When you turn on the NUM LOCK the “P” in the lower right corner will change to a “N”. When you turn off the NUM LOCK the “N” in the lower right corner will change back to a “P”.

ZEROIZE CV KEYS (Continued)
d. Highlight CRYPTO FILL, then push the key. e. The CRYPTO FILL page is shown. Fields can be highlighted or not highlighted.

f. Push the key. g. Highlight ZEROIZED CV keys, then push the key. h. The ACTIVE CV ZEROIZE message is displayed.

I. Push the key to confirm and perform the CV ZEROIZE function. j. Push the key to acknowledge the CV ZEROIZE passed message.

CONCLUSION The DAGR is a great tool for navigation, but it takes training to ensure continued proficiency in the use of the device and still requires each soldier to understand military map and land navigation techniques.

ANY QUESTIONS?

DEFENSE ADVANCED GPS RECEIVER (DAGR)

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