GPS Module GPS Engine Board GPS模块
Ct-T30 is a high sensitivity, low power GPS engine board.
It can be based on SiRFstar III GPS receiver module.
12 or 20 channels “All-in-View” tracking.
Antenna connector:MMCX type
Dimension: 40 x 30 x 7 mm
It can be based on SiRFstar III GPS receiver module.
12 or 20 channels “All-in-View” tracking.
Antenna connector:MMCX type
Dimension: 40 x 30 x 7 mm
Technical Specification:
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Feature
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Item
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Description
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General
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Frequency
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L1, 1575.42 MHz
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C/A code
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1.023 MHz chip rate
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Channels
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20
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Accuracy
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Position
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10 meters, 2D RMS
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5 meters 2D RMS, WAAS corrected
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<5meters (50%)
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Velocity
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0.1 meters/second
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Time
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1 microsecond synchronized to GPS time
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Datum
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Default
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WGS-84
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Other
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selectable for other Datum
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Time to First Fix (TTFF)(open sky & stationary requirements)
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Reacquisition
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0.1 sec., average
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Hot start
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1 sec., average typical TTFF
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Warm start
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38 sec., average typical TTFF
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Cold start
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42 sec., average typical TTFF
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Snap start
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1 sec., average
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Dynamic Conditions
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Altitude
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18,000 meters (60,000 feet) max.
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Velocity
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515 meters/second (1000 knots) max.
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Acceleration
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4g, max.
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Jerk
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20 meters/sec.3 max.
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Power
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Main power
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+3.3 ~ 5.0 V
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Power consumption
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165 mW (continuous mode)
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Supply Current
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≈49 mA
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Backup Power
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1.65 ~ 5.0 VDC input
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Serial Port
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Electrical interface
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Two full duplex serial TTL
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Protocol
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NMEA-0183@4800 bps (default)
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Time-1PPS Pulse
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Level
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TTL
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Pulse duration
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The 1PPS pulse width is 1μs, this 1PPS is NOTsuited to steer various oscillators (timing receivers,telecommunications system, etc.
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Time reference
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At the pulse positive edge
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Measurements
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Aligned to GPS second, ± 1 microsecond
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