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尺寸:45X38mm 国科GK9501S芯片 GPS﹠GLONASS双模

GRM-4538-GKGN

Features

Build on high performance, low-power 

      GK9501chip set

Ultra high sensitivity: -165dBm

Built in high gain LNA

Low power consumption:Max45mA@3.3V

NMEA-0183 compliant protocol

Operating voltage: 3.3V--5.5V

Operating temperature range:-40to85℃

Patch Antenna Size: 25x25x4mm

Small form factor: 45x38x13.8mm

Communication type: UART/TTL

Wire interface type: 4-pin Micro TCA L=300cm

RoHS compliant (Lead-free)


Parameter

Specification

Power Supply

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

Power Consumption

Acquisition:  45mA @VCC=VBAT=3.3V

Tracking:  40mA @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 , GLONASS L1OF 1602MHz, 

   SBAS: WAAS, EGNOS, MSAS, GAGAN

Sensitivity

Tracking:   -165dBm

Re-acquisition:   -156dBm

Acquisition:   -147dBm

TTFF (Autonomous)

Cold start:   35s  typ @-130dBm

Warm start:   30s  typ @-130dBm

Hot start:   1s   typ @-130dBm

Horizontal Position

Accuracy (Autonomous)

Dynamic: < 10m CEP @-130 dBm

Static state: < 5m CEP @-130 dBm

Update Rate

1Hz

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

RS232 Port

RS232 Port:RS232_ TXD and RS232_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: 45±0.50 × 38±0.50 ×13.8±0.50mm  

Wire interface type: DC 4-Pin , L=300cm

Weight: Approx.80g



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