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The GM-270 provides a host of features that make it easy for integration and use:
• 12 parallel satellite-tracking channels for fast acquisition and reacquisition
• High speed signal acquisition using 1920 time/frequency search channels.
• Built-in hardware Tracking Loop Processor WAAS/EGNOS Demodulator
• Low power consumption with Star II / LP chipset
• Built-in rechargeable battery for memory and RTC backup and for fast
Time to First Fix(TTFF)
• Support NMEA0183 v2.2 data protocol and SiRF binary code
• Trickle Power Enabled for Power Saving
• Enhanced algorithms -SnapLock and SnapStart provide superior navigation
performance
• in urban, canyon and foliage environments
• Support CF card type I connector suitable PDA, Hand Held PC or PC device.
Other functions:
• Receiver L1, C/A code.
• Tracks up to 12 satellites
• Snap Start: <3 sec (at < 25 minutes off period)
• Update rate: 1 Hz
• Antenna Type: Built in Active Antenna
• Minimum signal tracked: -175dBW
• Dimension: 91×50 ×20 mm
Dynamic Conditions:
• Altitude 18,000 meters max. (60,000 feet )
• Velocity 515 meters / second max. (700 knots)
• Acceleration 4 G, max
• Jerk 20 meters/second, max
Position accuracy:
• Non DGPS (Differential GPS)
Position 5-25 m CEP without SA
Velocity 0.1 m/sec, without SA
Time 1 usec sync GPS Time
• EGNOS/WAAS
Position
< 2.2 m, horizontal 95% of time
< 5 m, vertical 95% of time
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