Holux GPS Receiver Module GR**7

GR**7 Main features
Built on high performance SiRF StarIII chipset
Average cold start time is under *5 seconds
Low power consumption
*0 channels "All-in-view" tracking
**0, **0+ effective correlators for fast TTFF and high sensitivity acquisitions
Integrated ARM7TDMI CPU with software engineering services and available for embedded customer defined applications
On chip 1MB SRAM
Dual TTL level serial ports with one for GPS receiver command message interface, another one for RTCM***4 DGPS
Compact board size 1 X1 X 0.*7' (*5.4 X *5.4 X 7mm) for easy integration into hand-held device
Reacquisition time: 0.1 seconds
Support standard NMEA****3 and SiRF Binary protocol
Support accurate 1PPS output signal aligned with GPS timing
Multi-path mitigation hardware
On-board RTCM SC***4 DGPS and WAAS /EGNOS demodulator
Built-in a lithium battery make GPS fast positioning
Technical specifications
Electrical characteristics
General
FrequencyL1, ***5.*2 MHz
C/A code1.**3 MHz chip rate
Channels*0
Accuracy (Open Sky)
Position*0 meters, 2D RMS
7 meters 2D RMS, WAAS corrected
**5 meters, DGPS corrected
Altitude< ± *5m Vertical in term of *5%
Velocity0.1 meters/second
Time 1 microsecond synchronized to GPS time
Datum
DefaultWGS**4
Other Support different datum by request
Acquisition rate (Open sky, stationary requirements)
Reacquisition0.1 sec., average
Snap start2 sec., average
Hot start8 sec., average
Warm start*8 sec., average
Cold start*2 sec., average
Dynamic Conditions
Altitude: *8, **0 meters (*0, **0 feet) max
Velocity**5 meters/second (***0 knots) max
Acceleration4g, max
Jerk*0 meters/second, max