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尺寸:18X18mm 國科GK9501S芯片 GPS﹠北斗雙模

GAM-1818B-GKBD

Features

Build on high performance, low-power

           GK9501 chip set

Ultra high Track sensitivity: -165dBm

Extremely fast TTFF at low signal level

Built in high gain LNA

Low power consumption: Max 45mA@3.3V

NMEA-0183 compliant protocol

Operating voltage: 3.0V to 5.5V

Operating temperature range:-40to85℃

Patch Antenna Size: 18x18x4mm

Module Size: 18.5x18.5x6.8mm

Communication type: UART/TTL

RoHS compliant (Lead-free)



Parameter

Specification

Power Supply

Supply voltage:  3.0V~5.5V  Typical: 3.3V

Power Consumption

Acquisition:  45mA @VCC=VBAT=3.3V

Tracking:  40mA @VCC=VBAT=3.3V

Standby:  2.0mA @VCC=VBAT=3.3V

Backup:  20uA @VBAT=3.3V

Receiver Type

Code 66 search channels, 22 synchronous tracking channels

GPS&QZSS L1 1575.42MHz C/A , Beidou B1 1561.098MHz

            SBAS: WAAS, EGNOS, MSAS, GAGAN

Sensitivity

Tracking:   -165dBm

Re-acquisition:   -156dBm

Acquisition:   -148dBm


TTFF (EASY enabled)

Cold start:   15s  typ @-130dBm

Warm start:   5s  typ @-130dBm

Hot start :   1s  typ @-130dBm

TTFF (EASY disabled)

Cold start(Autonomous):   35s  typ @-130dBm

Warm start (Autonomous):   30s  typ @-130dBm

Hot start (Autonomous):   1s  typ @-130dBm

Horizontal Position

Accuracy (Autonomous)

<2.5m CEP @-130 dBm

Max Update Rate

Up to 10Hz,1Hz by fault


Accuracy of 1PPS Signal

not enabled


Acceleration Accuracy

Without aid: 0.1m/s2


Dynamic Performance

Maximum altitude: 18,000m

Maximum velocity: 515m/s

Acceleration: 4G


UART Port

UART Port: TXD and RXD

Supports baud rate from 4800bps to 115200bps, 9600bps by default

UART port is used for NMEA output, GK proprietary

            commands input and firmware upgrade


Temperature Range

Normal operation: -40°C ~ +85°C

Storage temperature: -45°C ~ +125°C


Physical Characteristics

Size: 18.5±0.50 × 18.5±0.50 ×6.8±0.50mm

Approx.5.5g