PRECISION LIGHTWEIGHT GPS RECEIVER (PLGR)
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PURPOSE
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
GLOBAL POSITIONING SYSTEM
PHYSICAL FEATURES
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
PLGR OPERATION OBJECTIVES
SETUP THE PLGR TO RECEIVE SATELLITE DATA.
DETERMINE YOUR PRESENT POSITION
INITIALIZE THE PLGR
ENTER WAYPOINTS
NAVIGATE TO A WAYPOINT
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
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
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
TURNING ON THE PLGR
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
SELF-TEST CHECK
Upon power up – self-test status will be displayed
Or
POWER BATTERY CHECK
Tan PLGR – 10 hrs, Green PLGR – 20 hrs
Upon power up – battery status will be displayed
Or
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
BACKLIGHTING
CRYPTO CHECK
PLGR KEYPAD MENU SCREEN
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
SETUP MODE
Mode of Operation, SV-Type
SETUP UNITS
POSITION SCREEN
(Coordinate System)
MGRS
UTM/UPS
Position Screen
(Coordinate System)
L/L dm
L/L dms
SETUP MAGVAR
Magnetic Variation
SETUP
Elevation Hold,Time Display & Error Format
MAP DATUM
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.
SETUP I/O
AUTOMARK
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
POSITION SCREENS
PRESENT POSITION
DYNAMIC INFORMATION
TRACK/SEARCH
PLGR INITIALIZATION
INITIALIZE POSITION
Determine approx coordinates and elevation
HOW TO ENTER A WAYPOINT
WAYPOINT MENU
(1000 WAYPOINTS: 0-999)
WAYPOINT
MARKING POSITION
MARKING POSITION
EDITING A WAYPOINT
Pull up the waypoint
PLGR NAVIGATION
NAVIGATION
NAVIGATION SCREEN
NAVIGATION SCREEN
NAVIGATION SCREEN
Navigating to a Waypoint
Navigating to a Waypoint
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
Practical Exercise
CONCLUSION
