| Receiver
|
|
| Frequency |
L1, 1575.42MHz
|
| C/A code |
1.023MHz chip rate
|
| Channels |
12
|
| Sensitivity |
-170dBW
|
|
Accuracy
|
|
|
Position Horizontal
|
15m 2d RMS (SA off)
|
|
|
10m 2d RMS,WAAS enable(SA off)
|
|
|
1 ~ 5 m, DGPS corrected
|
|
Velocity
|
0.1m/sec 95% (SA off),
|
|
Time
|
1 microsecond synchronized to GPS time
|
|
Datum
|
WGS-84
|
|
Acquisition Rate
|
|
|
Reacquisition
|
0.1 sec., average (recovery time for being interrupted)
|
|
Hot start
|
8 sec., average (with ephemeris and almanac valid)
|
|
Warm start
|
38 sec., average (with almanac but not ephemeris)
|
|
Cold start
|
48 sec., average (neither almanac nor ephemeris)
|
|
Dynamic Condition
|
|
|
Altitude
|
18,000 meters (60,000 feet) max
|
|
Velocity
|
515 meters/sec. (1000knots) max
|
|
Power
|
|
|
Voltage supply
|
3.8Vdc ~ 6.5Vdc
|
|
Current supply
|
Continuous mode: 60mA typical
|
|
Backup Power
|
Trickle power mode: 25mA typical +2.5V to +3.6V
|
|
Backup Current
|
10uA typical
|
|
|
Serial Port
|
one for GPS, one for DGPS
|
|
Ports
|
|
|
Electrical level
|
TTL level Output voltage level : 0 ~ 3.5v
|
|
|
RS-232 level
|
|
Communication
|
Full duplex asynchronous
|
|
Code type
|
ASCII
|
|
GPS Protocol
|
SiRF binary/NMEA 0183 changeable(Default:NMEA)
|
|
GPS Output Message
|
SiRF binary >> position, velocity, altitude,
status and control , NMEA 0183 >> GGA, GSA, GSV, RMC (VTG
and GLL are optional)
|
|
GPS transfer rate
|
Software command setting (Default : 4800bps for NMEA )
|
|
DGPS protocol
|
RTCM SC-104, ver 2.00, type 1, 2, and 9
|
|
Time Mark> (1 PPS Pulse)
|
|
|
Level
|
TTL
|
|
Pulse duration
|
100ms
|
|
Time reference
|
At the pulse positive edge
|
|
Measurement
|
Aligned to GPS sec., +/- 1us
|
|
Active Antenna Connector
|
MCX ,SMA ,SMB or others OEM specified connector available,please
refer to our GPS antenna product
|
|
Environmental Characteristics
|
|
Temperature
|
|
| Operating |
-30 ° C to +80 ° C
|
| Storage |
-40 ° C to +85 ° C
|
SiRF starII high performance and low power consumption chip set