PRECISION LIGHTWEIGHT GPS RECEIVER (PLGR)

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PRECISION LIGHTWEIGHT GPS RECEIVER (PLGR)

• CPT Krystal Gates and SFC Lesauis
• 1st BN, 364th RGMT
• 4th BDE, 91st DIV

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AGENDA

• PURPOSE
• GPS CONCEPT
• PHYSICAL FEATURES
• CHARACTERISTICS
• PLGR OPERATION OBJECTIVES
• PLGR NAVIGATION
• PRACTICAL EXERCISE
• CONCLUSION

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PURPOSE
ENABLE THE USER TO OPERATE THE AN/PSN-11,
PRECISION LIGHTWEIGHT GLOBAL POSITIONING SYSTEM
(GPS) RECEIVER, TO FIND POSITIONAL DATA AND
NAVIGATE FROM POINT TO POINT.
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GPS CONCEPT

• 24 SATELLITES IN 6 ORBITS, 6-9 ARE IN VIEW OF THE
  GPS RECEIVER AT ANY TIME
• REQUIRES A MINIMUM OF 3 SATELLITES FOR LOCATION
  AND 4 FOR ELEVATION
• UTILIZES PRECISE TIMING FROM SATELLITE TO
  RECEIVER TO DETERMINE LOCATION AND ELEVATION
• REQUIRES LINE OF SIGHT TO SATELLITE RCVR
• COMSEC ALLOWS MAXIMUM ACCURACY

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GLOBAL POSITIONING SYSTEM
GPS Satellite
LOCATION AND ELEVATION DETERMINED BY SIGNAL
TIMING FROM SATELLITE TO GPS RECEIVER.
GPS User Segment
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PHYSICAL FEATURES
POWER BATTERY COVER
KYK-13/KOI-18/ANCD CONNECTOR (COMSEC)
DO NOT HIT CLR/MARK AND NUM/LOCK OR YOU
WILL ZEROIZE THE DEVICE
REAR PANEL CONNECTORS
DISPLAY
INTEGRAL ANTENNA
KEYPAD
HANDLE
MEMORY BATTERY COVER
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PLGR CHARACTERISTICS

• ALL WEATHER OPERATION
• NO SIGNALS EMITTED TO REVEAL YOUR POSITION
• HOLDS 52 DATUMS
• IS COMPATIBLE WITH NIGHT VISION DEVICES
• RESISTS JAMMING (SPOOFING)
• WATER-PROOF TO ONE METER
• RUNS ON INTERNAL BATTERIES OR EXTERNAL POWER
  SOURCE
• LITHIUM OR AA BATTERY ADAPTER
• ADAPTER FOR 12 VDC OR 120 VAC

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PLGR OPERATION OBJECTIVES

• SETUP THE PLGR TO RECEIVE SATELLITE DATA.
• DETERMINE YOUR PRESENT POSITION
• INITIALIZE THE PLGR
• ENTER WAYPOINTS
• NAVIGATE TO A WAYPOINT

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PLGR Cold Start or Standby

• Cold Start
• If PLGR has not been used for a month or more or
  if the Almanac is old
• Present position greater than one degree from
  last known position
• Standby
• PLGR has been used within a few days AND present
  position within one degree of last known position

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PLGR Cold Start

• Physical check
• Self-test check
• Power battery check
• Verify crypto loaded
• Crypto loaded SV equals all-Y
• Crypto not loaded SV equals mixed
• Set operation mode to Continuous
• Initialize position
• Monitor FOM (1) and almanac age (1 day)
• Load waypoints

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PLGR Standby

• Physical check
• Power battery check
• Set operation mode to Continuous and SV type to
  mixed
• Monitor FOM (1) and almanac age (1 day) and load
  waypoints

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TURNING ON THE PLGR
FIX OLD 17S KS
45357e 34511n El 00134m P
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PHYSICAL CHECK

• Inspect PLGR for
• Dents, scratches, punctures
• Unreadable data plates
• Keys for cracks, breaks, unreadable markings
• Display window for cracks or cloudy
• Missing or loose hardware
• antenna
• covers
• connectors

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SELF-TEST CHECK

• Upon power up - self-test status will be
  displayed
• Or

move select STATUS
SETUP INIT
TEST HELP ltmoregt P
STS GPS good Self-Test
OK Internal antenna Vehicle power
P
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POWER BATTERY CHECK

• Tan PLGR - 10 hrs, Green PLGR - 20 hrs
• Upon power up - battery status will be displayed
• Or

move select STATUS
SETUP INIT TEST HELP
ltmoregt P
BATTERYBA-5800 non-rechargeable 01h23m used
RST 08h37m left P
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PLGR BATTERIES

• Memory Battery - not a AA battery, but AA size,
  replace yearly when loading new crypto
• Power Battery - disposable
• Tan case - 10 hours
• Green case - 20 hours

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BACKLIGHTING
Hold the ON/BRT key and press the Up-arrow key.

• This increases the display backlighting

Hold the ON/BRT key and press the Down-arrow key.

• This reduces the display backlighting

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CRYPTO CHECK
move select STATUS
SETUP INIT TEST HELP
ltmoregt P
DATA-XFR SV-SEL DOP-CALC ALERTS SINCGARS
KOI-18 CRYPTO ltmoregt P
CUSTOM NAV ltmoregt P
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PLGR KEYPAD MENU SCREEN
move select STATUS
SETUP INIT TEST HELP
ltmoregt P
DATA-XFR SV-SEL DOP-CALC ALERTS SINCGARS
KOI-18 CRYPTO ltmoregt P
CUSTOM NAV ltmoregt P
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PLGR SETUP SCREENS

• SETUP MODE
• Mode of Operation, satellite type
• SETUP UNITS
• Coordinate system, units, north reference
• SETUP MAGVAR
• Magnetic Variation (MAGVAR)
• SETUP
• Local time
• SETUP DTM
• Datum, timer
• 11 Setup screens total

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SETUP MODEMode of Operation, SV-Type
SETUP MODE FIX Quick POS FIX, then
STBY SV-TYPEall-Y ?P
CONT FIX AVG TIME STBY 2dTNG 3dTNG RHRSL
mixed all-Y
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SETUP UNITS
SETUP UNITS MGRS-New Metric ElevFeet
MSL ANGLDeg Mag ?P
MGRS-Old MGRS-New UTM/UPS L/L-dm L/L-dms BNG ITMG
Metric English NAUT
True Mag Grid
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POSITION SCREEN(Coordinate System)

• MGRS

• UTM/UPS

CONT 100ft 12A MGRS-New AA 12345e
12345n Elh 12345ftD ?P
CONT 100ft 12A
UTM/UPS 1234567e1234567n Elh 12345ftD ?P
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Position Screen(Coordinate System)

• L/L dm

• L/L dms

CONT FOM1 N 12?3456.78 W
012?3456.78 Elh 12345ftM ?P
CONT 100ft N 12?34.567 W
012?34.567 Elh 12345ftD ?P
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SETUP MAGVARMagnetic Variation
SETUP MAGVAR TYPE Calc deg WMM
1995 ?P
degrees deg min Mil-?
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SETUPElevation Hold,Time Display Error Format
SETUP Elhold automatic TIME LocZ-0430 ERR
FOM ? P
automatic manual
FOM m
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MAP DATUM
Datum Code Datum Description
SETUP DTMWGD WGS-84 AUTOMATIC OFF TIMER
5min ? P
off 5 minutes 15 seconds 20 minutes
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MAP DATUM

• A datum is a surveyed line or point that ensures
  all maps within a series will correctly match
  when placed edge to edge.
• Fifty-two map Datum sets are available within the
  PLGR.

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SETUP I/O
SETUP I/O SERIALStandard HAVEQUICK Off 1PPS
Off ?P
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AUTOMARK
SETUP AUTOMARK MODE off WP001 01-13-00
1300L REPEAT 00h00m ?P
off once rpt
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PLGR CRYPTO

• NSA certified that the PLGR is considered
  unclassified when keyed.
• Loaded yearly or as required
• Can be loaded with KYK-13, KOI-18, CYZ-10
• Key material gives the PLGR greater accuracy in
  positioning by accessing secure satellites too

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POSITION SCREENS
CONT OLD 17S
MGRS-New KS 45367e 34511n Elh 00123m ?P
TRACK / SEARCH 32 14 7 / 25 18 VIS
9 GOOD 7 ALM AGE 1day ?P
085934L gt10ms 02-12-00 SAT TRK
106.4 M GS 3kph ?P
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PRESENT POSITION
CONT OLD 17S KS 45367e
34511n El 00125m ?P
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DYNAMIC INFORMATION
113505L gt10ms 02-12-00
SAT TRK 104.7M GS 4mph ?P
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TRACK/SEARCH
TRACK/SEARCH 12 09 08 23 / 19 VIS9
GOOD9 ALM AGE1day ?P
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PLGR INITIALIZATION
The PLGR has the ability to determine its
present position, time, date, track and ground
speed without any operator input.
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INITIALIZE POSITION

• Determine approx coordinates and elevation

move select STATUS
SETUP INIT TEST HELP
ltmoregt P
INIT POS CLR 17S KS 45367e
34511n Elh 00356ft ?P
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HOW TO ENTER A WAYPOINT
A waypoint is the location of a point on a
desired course described by coordinates or a
physical location. You can enter waypoints into
the PLGR by map coordinates or by a known range,
or azimuth from your present position.
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WAYPOINT MENU(1000 WAYPOINTS 0-999)
PRESS
WP ltmovegt ? SEL ENTER EDIT COPY SR-CALC
RNG-CALC DIST CLEAR ROUTE
PRESS
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WAYPOINT
WAYPOINT NAME
WAYPOINT
WP001 UNUSED001 B MGRS-New AN 00000e
00000n No EL CLR ?P
GRID ZONE DESIGNATOR
100KM SQUARE DESIGNATION
GRID
ELEVATION
CLEAR ENTRY
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MARKING POSITION
MARK position to WP03 MARK03 MARK saves
ON cancels
PRESS
Save
CLR MARK
CLR MARK
Waypoint
Cancel Waypoint
1 ON BRT
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MARKING POSITION
WAYPOINT MARKED
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EDITING A WAYPOINT
A B C M Z 0 1 2

• Pull up the waypoint

PRESS
PRESS
7 WP
PRESS
WP 42 MARK42 N 12?3456.78 W
012?3456.78 Elh 12345ft ?P
WP 42 MARK42 N 12?3456.78 W
012?3456.78 Elh 12345ft ?P
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PLGR NAVIGATION
Navigating is using the PLGR to locate various
points on a map relative to your position.
There are four navigating modes that may be
accessed and selected.
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NAVIGATION
PRESS
SLOW DIRECT WP001 MARK001
?P
PRESS
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NAVIGATION SCREEN
2D FAST DIRECT WP001 MARK001
?P
PRESS THREE TIMES
PRESS ONCE
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NAVIGATION SCREEN
WP001 30m TRK 95.5ºM AZ
185.0ºM STR? 30.5 ?P
PRESS
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NAVIGATION SCREEN
RNG 60.0m TTG 002015 ELD
00003.0m MMD2 60.5 ?P
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Navigating to a Waypoint
FAST SLOW 2D FAST CUSTOM
SLOW DIRECT WP 43 MARK43
P
MARK43 OLD TRK n/a
n/a STR n/a RNG 25.1 yds P
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Navigating to a Waypoint
MARK43 OLD TRK 90? T
1 kts STR RNG 35.5 yds P
MARK43 OLD TRK 30? T
1 kts STR 60? RNG 50.2 yds P
True North
True North
TRK 30?
You are this dot and moving
TRK
Destination Waypoint
Destination Waypoint
STR 60?
STR
35 yds
50 yds
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Mission Planning Software

• Load waypoints and routes created/saved as files
• Emulate PLGR screen on to a lap top or PC
• Load almanac data
• Load PLGR display parameters
• Navigation parameters
• Units

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Practical Exercise
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CONCLUSION
The PLGR 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.