Davis 8157 Manual Do Utilizador
GPS Module Specifications
GPS Module Installation Manual
Page 3
GPS Module Specifications
General GPS Specifications
Mechanical
Size: 3.8” x 2.4” x 0.9” (97 x 61 x 23 mm)
Weight: 11 oz (0.3 kg)
Weight: 11 oz (0.3 kg)
Environmental
Operating Range: -4°F to +140°F (-20°C to +60°C)
Storage Range: -40°F to +185°F (-40°C to +85°C)
Storage Range: -40°F to +185°F (-40°C to +85°C)
Power
Input: +12Vdc to +16 Vdc regulated, 80 mA max
Memory Backup: lithium cell, estimated 5 year service life
Memory Backup: lithium cell, estimated 5 year service life
Interface
GPS Module-to-adapter cable: male 8-pin Mini-DIN
GPS Module-to-DriveRight 600: female 8-pin Mini-DIN
GPS Antenna: female SMA
GPS Module-to-DriveRight 600: female 8-pin Mini-DIN
GPS Antenna: female SMA
Cable Length
GPS Module-to-adapter cable: 12” (300 mm)
GPS Module-to-DriveRight 600: 22” (570 mm)
GPS Module-to-DriveRight 600: 22” (570 mm)
GPS Receiver Specifications
Basic
Channels: 12 parallel
Frequency: 1575.42 MHz (L1)
Frequency: 1575.42 MHz (L1)
Accuracy
Positiion: 25 m SEP without selective ability (SA), 100 m 2 DRMS with SA
(95%)
Velocity: 0.04 mph (0.02 m/s) without SA
(95%)
Velocity: 0.04 mph (0.02 m/s) without SA
Dynamic Limits
Acceleration: 4 G max
Jerk: 5 m/s
3
Startup Time To
First Location
Fix
First Location
Fix
DriveRight unplugged for 0 hours = 30 seconds
DriveRight unplugged for more than 0, less than 4 hours = 60 seconds
DriveRight unplugged for more than 4, less than 8 hours = 90 seconds
DriveRight unplugged for more than 8, less than 24 hours = 120 seconds
DriveRight unplugged for more than 24 hours =180 seconds
DriveRight unplugged for more than 0, less than 4 hours = 60 seconds
DriveRight unplugged for more than 4, less than 8 hours = 90 seconds
DriveRight unplugged for more than 8, less than 24 hours = 120 seconds
DriveRight unplugged for more than 24 hours =180 seconds
Reacquisition
Time
Time
After 60 second signal obstruction: 5 seconds
Internal: <1.0 second
Internal: <1.0 second
GPS Antenna Specifications
Mechanical
Size: 2.3” x 1.9” x 0.55” (58 x 48 x 14 mm)
Weight: 2.3 oz (0.065 kg)
Weight: 2.3 oz (0.065 kg)
Environmental
Operating Range: -22°F to +185°F (-30°C to +85°C)
Storage Range: -40°F to +194°F (-40°C to +90°C)
Storage Range: -40°F to +194°F (-40°C to +90°C)
Power
Input: +3 Vdc regulated, 12 mA ± 2 mA
Cable
Type: Coaxial RG-174
Length: 16 feet (5 m)
Connector: male SMA
Length: 16 feet (5 m)
Connector: male SMA
Performance
Frequency: 1575.42 MHz (L1); Gain: 25 dB (min); Output Impedance: 50
Ohms
Ohms
07395.190 GPS Installation Rev B 6 27 2003.fm Page 3 Friday, June 27, 2003 8:12 AM