General Architecture Design 2 Stages Active LNA
Dual Filters,(BPF (dielectriac)& LPF ( lump element))
RF Protection (10 Watt), nano-second spark-gap
Dielectric Patch antenna
Lownoise Low drop-out, Linear Regulator
Low Loss RG/174 Coax Cable
Short Circuit/ Auto Shutdown ( GPS rcvr load protect) performance receiving
Frequency L1 Band
1575MHz)
Output Impedance 50 ohms
Polarization‘s Right hand circular (RHC)
Bandwidth 10dB Mhz @ -3dB point
VSWR 1.5 Typical @ 1575 Mhz
Elev. Angle Coverage 5~90 degree
Az. Bearing Coverage 360 degree
Filtering dual ( BPF<10 Mhz B/W , LPF @ 1576 MHZ
Stop-band @ 1585 MHZ)
Over-all gain 28dB (rypical including 4dB cable loss & Filters

Frequency L1,1575,42 MHz
C/A code 1.023 MHz Chip rate
Channels 12
Position accuracy <10meters CEP withour SA
Velocity 0.1 meters/second, without SA
Time 1 microsecond synchronized to GPS time
DGPS accuracy position 1 to 5 meters, typical
1.5 acquisition rate
Snap Start <3sec., average
Hot Start < 8 sec., average
Warm Start < 38 sec., average
Cold start <45 sec., average

Hardware Features :

:: The GPS and GSM Modules are integrated inside inside the tracking unit case
:: SoC(system on Chip) solution
:: GPRS support GSM for for downloading logged data
:: Up to 16000 in dividual locations can be save (2M bit memory)
:: Built in motion switch ( the unitcan be mounted in any position for activation)
:: Four negative outputs ( 200mA max per output)
:: Six negative inputs ( active low to activate input )
:: One analog in put
:: Keypad in put
:: Voice I/O
:: Digital camera input
:: GPS data output
:: Build serial port(1200 to 38400 baud rate) for external communication and
:: firmware upgarade
:: Detects external power loss
:: Internal temperature sensor

:: Multiple Location Memory : Request up to 200 location(S),set time intervals
between location in tracing movemenets over a longer period of time ( Rental
cars, Hired equipment’s trucks etc) using SMS or GPRS.
:: Battery Back-up Switch Over monitor by firmware in case main battery is
CUT-OFF.

:: GEO-FENCHING :allows you to fix a location with an alarm warning via SMS or
e-mail should the ROVER vehicle move outside the pre-programmed boundary