User
s Guide
GPSInstant
FIX GPS-BT74
6. Specification
GPS Features Datum
Chipset RFMD WGS-84 (or by demanded)
Frequency L1, 1575.42MHz Dynamic Conditions
C/A Code 1.023MHz chip rate Altitude <18,000m
Channels Adaptive, 8 – 32 SVs (best 8 used in solution) Velocity <515m/s
Antenna (Internal) Built-in low noise antenna Acceleration <1G
External Active MMCX Antenna Motional Jerk 4 m/sec
Sensitivity Interface
To – 157dBm Tracking, Superior Urban Canyon Performance Communication Protocol: Communicate with host platform
Time to First Fix (TTFF) via Bluetooth (class 2) serial port profile
Cold Start 43 sec, average Bluetooth communication distance 10meters (Typical)
Warm Start 25 sec, average GPS Protocol: Default: NMEA-0183 V2.2 - GGA, GSA, GSV,
Hot Start 4 sec, average GLL, RMC, VTG, Baud rate 9600/38400 bps,
Reacquisition < 3sec Data bit: 8, stop bit: 1(Default)
Update rate 1 sec
Accuracy Device Size and Weight
Position Open sky: <5m (RMS) 81.0 (L) X 43.0 (W) X 17.6 (H) mm
In door: <20m (RMS) 3.19 (L) X 1.69 (W) X 0.69 (H) inch
Velocity 0.1m/sec, without SA 70g (battery included)
Time ±100ns synchronized to GPS time
Power Accessories
Built-in rechargeable 1100mAh Li-ion battery and 5V DC input Car charger (12V in, 5V output)
Operation Current <80mA (Typical) AC adaptor (5.3V output, 500mA)
Operation Time 13hrs, fully charged, in continuous mode
Charging time 3.0hrs. (Typical)
Environmental Characteristics
Operating Temperature - 20°C to + 60°C
Storage Temperature - 50°C to + 100°C
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9
GPSInstantFIX
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sinstantfix.com.tw
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