UsGlobalSat br-305 仕様ガイド
Product Feature
• “SiRF Star Ⅱe/LP” high performance and low power consumption chipset
• All-in-view 12-channel parallel processing
• Built-in active antenna
• High sensitivity to satellite signal
• Cold start under 45 seconds, average
• Superior urban canyon performance
• FoliageLock for weak signal tracking
• Build-in SuperCap to reserve system data for rapid satellite acquisition.
• Supported NMEA 0183 command: GGA, GSA, GSV, RMC, GLL, VTG
• Super-cohesive magnetic for mounting on the car
• LED indicator for GPS fix or not fix
• “SiRF Star Ⅱe/LP” high performance and low power consumption chipset
• All-in-view 12-channel parallel processing
• Built-in active antenna
• High sensitivity to satellite signal
• Cold start under 45 seconds, average
• Superior urban canyon performance
• FoliageLock for weak signal tracking
• Build-in SuperCap to reserve system data for rapid satellite acquisition.
• Supported NMEA 0183 command: GGA, GSA, GSV, RMC, GLL, VTG
• Super-cohesive magnetic for mounting on the car
• LED indicator for GPS fix or not fix
LED OFF:
Receiver switch off
LED
ON:
No
fixed,
Signal
searching
LED
Flashing:
Position
Fixed
• Non-slip on the bottom
• RS232 interface with PS2 connector
System Specification
• RS232 interface with PS2 connector
System Specification
Electrical Characteristics (Receiver)
Frequency
L1, 1575.42 MHz
C/A Code
1.023 MHz chip rate
Channels 12
Sensitivity
-170 dBW
Accuracy
Position Horizontal
10m 2D RMS (SA off)
Velocity
0.1m/sec 95% (SA off),
Time
1 micro-second synchronized to GPS time
WAAS enabled
7m 2D RMS
Datum
Datum
WGS-84
Acquisition Rate
Hot start
8 sec., average (with ephemeris and almanac valid)
Warm start
38 sec., average (with almanac but not ephemeris)
Cold start
45 sec., average (neither almanac nor ephemeris)
Reacquisition
0.1 sec. average (interruption recovery time)
Protocol
GPS Protocol
Default: NMEA 0183 (Secondary: SiRF binary)
GPS Output Data
SiRF binary >> position, velocity, altitude, status and
control ; NMEA 0183 protocol, and supports
command: GGA, GSA, GSV, RMC, VTG, GLL (VTG
and GLL are optional)
control ; NMEA 0183 protocol, and supports
command: GGA, GSA, GSV, RMC, VTG, GLL (VTG
and GLL are optional)
GPS transfer rate
Software command setting (Default : 4800,n,8,1 for
NMEA )
NMEA )
Dynamic Condition
Acceleration Limit
Less than 4g
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